May 17, 2019

Commentary Player Safety & Post Tension Concrete in Tennis Court Construction

Would you want your high school your track team athletes to practice and compete on bare concrete? How about your football team, basketball team, baseball team, lacrosse team, soccer team. What athlete do you know that does this? Tennis players! The time for building safe play areas for our young tennis athletes has come.

I recently article on court surfaces in Tennis Industry magazine and was shocked that professionals in the sports and engineering field , experienced in specifying athletic fields and running tracks, with high end shock attenuation and force reduction qualities are promoting the virtues of bare post tension concrete when it comes to the sport of tennis. What about protecting tennis athletes and extending their time on the court.

Shoe companies shout the shock absorbing qualities of tennis shoes in cushioning the athlete....come on who really believes this is the really the effective answer? Are we loosing some of the better athletes in school because of unsafe facilities?

How many high school tennis athletes are damaged, careers in tennis shortened because of substandard facilities? What happens to athletes that regularly practice and play on concrete? Joints, backs, leg fatigue, diminished careers, knee trama, ankle swelling. The fast paced game played on these unforgiving surfaces jolt the body. Parents that scream for protection to their high school athletes in sports don’t consider tennis. The fast paced serve and volley game promoted throughout the US is not developing better tennis players but is injuring countless possible future players that could be bringing the game of tennis back in popularity.

Orthopedic Journal of Sports Medicine, 1/6/1018 commented “Overall, recurrent injuries resulted in greater time away from sport, a higher risk of sport discontinuation, and a higher likelihood of surgical intervention. In tennis, the repetitive nature of high-velocity arm movements causes overuse injuries in the upper extremity while the sprinting, stopping and pivoting, and pounding motions place repeated rotational shear and loading forces on each joint of the lower extremities which, in turn, places the athlete at increased risk for acute and overuse injury. "

The problem is not that we do not have the technology, we do. Tennis is the only sport played on everything from grass, clay, crushed rock, synthetic turf, asphalt, concrete, rubber, urethane cushion, plastic tiles, carpet. Hard courts speed the ball up, creating more force on the arm, and keep the bounce lower. A few coats of paint may be pretty but it does not make a surface safe for young athletes.

Our public and private schools are not considering child safety when choosing tennis court construction. Schools should consider what bare concrete does to a young athlete. This is not to say that post tension concrete is not a good base, it is but the tennis surface needs to be more than a coat of paint. These player unfriendly facilities put schools and children at risk.

Lets grow the game by taking aim at keeping our young athletes healthier, safer from injury and the long term potentially effects of joint trama so they can continue playing careers in both recreational and in competitive environments. Maybe the USTA can help in bring back tennis by emphasizing safer surfaces to keep the athletes safer. Perhaps the American Sports Builders Association should work on solutions in construction. Lets all of us address this for the betterment of the game and our future in tennis. Rick Burke, President NGI Sports

March 9, 2012


Birdbaths, depressions, or low areas on tennis courts are commonly defined as a low spot on the court that holds water. According to the ASBA (, a birdbath is any area that water gathers and is held in a volume higher than 1/16” (2mm or the width of a nickel) for longer than an hour of drying in 70 degree Fahrenheit.

Depending on the severity of these areas, they could lead to delayed play and in the longer run mold or algae. The mold is a greater concern as it can either make play unsafe due to slick conditions, and even delaminate the acrylic on the surface. It is generally recommended to keep any court clean of such growth; power washing the courts is an effective action for mold removal.

These depressions could also be a result from improper construction or base preparation. Meaning that the courts could have been constructed using an improper slope, organic materials in the subsoil, improper compaction of the sub grade, or even bad drainage around the site. Over enough time most courts “settle” even with a perfect installation because of materials in the subgrade or site drainage issues.

There are 3 ready solutions for birdbaths, and they range in application and price. The cheapest option would be to apply multiple coats of an acrylic patch mix, once built up and flush with the surrounding areas and sanded smooth the courts could be painted. Next, you could tear out the court, or re-mill the asphalt giving a new surface. One of the most effective options would be to employ a modern day synthetic overlay system; they range in style, cost, and construction, but may also be the most cost effective. Depending on the court and its condition.

August 30, 2019

3D Mapping for Contractors

Continuing the discussion from last month on NGI’s 3D mapping for your job evaluations a way to start is:

  1. Provide the layout of the courts by either sending an address for us to check on Google Earth, or send the image to us.
  2. NGI will in turn send a court elevation sheet that matches that site along with any required instructions on where to start/stop the grid. This is especially critical if there are odd shaped court layouts or multiple batteries.
  3. After the spreadsheets are returned we can create the 3D mapping data sheets and a report along with any recommendations etc.
  4. We will gladly provide the report back to you under your logo. The cost to provide this service is $300.00/court. If the project is completed using one of NGI Sports surfaces we will deduct the costs from the materials invoice to you.

Please give us a call or email if you would like to discuss further.

October 2, 2019

American Sports Builders Association


NGI Sports is an active leading member of the ASBA, The American Sports Builders Association. ASBA is a non-profit trade association comprised of builders, designers and suppliers for sports facilities, existing to promote the highest standards of design, construction and maintenance.
NGI particularly supports the ASBA Certified Builders programs which place great value on professionals in our industry to be current on all phases of tennis court design and installation. Association meetings provide a forum to meet contemporaries in the field and exchange ideas face to face. This exchange of information and affiliations has helped NGI in the development of its “Overlay Renovation Technology” systems. Our people have been involved in the ASBA (formally USTC&TBA) for over 40 years. Today, the Association has over 400 member companies, comprised of builders, designers and suppliers of materials for not only tennis courts and running tracks, as was the original USTC&TBA, but now also includes natural and synthetic turf fields, indoor and outdoor synthetic sports surfaces and small sport areas like pickleball and basketball.


David Burke, VP Sales at NGI, is a board member of the Association and Michael Burke, VP Marketing at NGI is on the marketing committee for ASBA. If you are not already a member David and Mike ask that you consider attending the 2019 Technical Meeting December 6-9 at the Rosen Shingle Creek in Orlando, Florida. Attend this meeting to network with peers, learn new technologies and industry related trends. Give then a call if you need guidance for this. If you already are a member, consider becoming certified.

2019 and 2020 Seminar Locations for your calendar
Dates to be announced.
Orlando, FL
Tampa, FL
Nashville, TN
Atlanta, GA
Indianapolis, IN
Ann Arbor, MI
Davenport, IA
Wausau, WI
Green Bay, WI
Minneapolis, MN
Chicago, IL
Springfield, IL
Cincinnati, OH
Dayton, OH
October 1, 2019

Ask The Expert


Do you have any questions about any of NGI’s products, processes or anything industry related? Please email for answers or visit our website.Q. Will Sand Infill Be Moved Around During Play On The NGI Systems Synthetic Grass Courts?


A. No, the synthetic turf fibers form a matrix which keeps sand from migrating or becoming washed out of the surface.

Q.Will the Infill Wash Out When It Rains?
With the proper design slope, the majority of the rain will drain across the surface with any residual water draining horizontally through the surface. On our artificial grass systems, some moisture will percolate vertically down to the base.

Q. Will the Color Fade In the Hot Sun?
The special Thiolon yarn is produced with a very high resistance UV inhibitor to preventand/or minimize fading.

Q. What Are The Maintenance Requirements For The Courts?
A. Once our NGI Systems Tennis Courts are installed, they require a check-up and periodic cleaning as well as grooming, depending upon the type of court and amount of play it receives.

Q. Is The Expected Life Of The Surfaces?

A. The expected life on any of our surfaces, with proper maintenance, is up to 20 years. This gives a reasonable surface-life that equates to an excellent sports investment.


*NGI Sports invites all customers, old and new, to become a "Client of the Month." Send your company details, news, images and updates to to be featured in one of our upcoming issues of The NGI News.
NGI Sports delivers the best surfaces for sport - the best materials, methods, and fit for every project with thousands of installations from Hilton Head to Phoenix, Toledo to Torrance.

We stand by the surfaces we make, guaranteed.

For more information about NGI Sports visit
August 30, 2019

Ask The Expert

Do you have any questions about any of NGI’s products, processes or anything industry related? Please email

Q. How long does it take to install an NGI systems tennis surface?

A. Installation time depends on the amount of preparation needed, weather, and system choice but usually between 5-7 days depending on site conditions.

Q. Are NGI Systems Tennis Surfaces glued down?

A. NGI systems tennis surfaces are free floating detached systems. The perimeter of the court is usually glued with an edge tape and in some cases a bead of glue to keep a clean edge transition for the surface and to prevent insects, dust, leaves etc from getting under the court.

Q. What kind of base do NGI Systems Tennis Surfaces need?

A. Most can be installed over a concrete, asphalt or any stable crushed stone or existing clay court base . This includes existing courts that are cracked and deteriorating. Each base must be inspected and prepared prior to installation of the surfacing system

Ask The Expert

Do you have any questions about any of NGI’s products, processes or anything industry related? Email

Q. How long should the sub base be left to cure before installing the final surface?
Q. Are your all-weather Titan tracks environmentally friendly?
Q. What are the main criteria for selecting an athletic surface and supplier?
Q. Where have NGI Sports’ all-weather track and field surfaces been installed?
Q. How do I maintain my home Tennis court with your Pro Clay surface?
Q. How much does an NGI Sports surface Home Tennis Court cost?
Q. Does NGI Sports ever use any hazardous chemicals or materials in it’s manufacturing processes or installations?

November 1, 2019

Breaking News


Edgerton High School in Edgerton WI approved the installation of seven (7) ProBounce courts at last night’s board meeting. The project includes pulverizing the existing asphalt, adding a concrete curb and then laying a laser graded stone base over which the ProBounce will be directly installed. Base works starts next Friday. Existing footprint shown left.
NGI Sports is thrilled to announce that they have been awarded the contract to supply and install two athletic tracks for the US Military! More news to follow.
Connect, discover and experience the 2020 Racquet & Paddle Sports Show, bringing together racquet sports professionals, industry leaders, facility owners, and a wide range of product manufacturers from around the world.
All-inclusive packages are available to help you keep costs low and visibility high, and as an ASBA member, you receive 10% off your booth space! Join other brands at this newly formed yearly gathering of industry professionals and let's celebrate all things racquet & paddle sports!NGI Sports is, an ASBA member, and will be participating in this event, more information to follow.
May 1, 2020

Client of the Month


“We are the premier installer of athletic surfaces, having achieved a reputation for providing unparalleled quality, outstanding service and exceptional value. Our team is committed to maintaining the highest level of integrity and fairness with our employees, customers, suppliers and competitors. To support our mission, we are guided by our responsibilities to our environment, the community, and workforce development.”

Choosing the right athletic surface is an important decision as important as choosing the right contractor to install your athletic surface.

Nagle spent last year and this winter visiting installation sites in process and completed projects before deciding to implement the TitanTrax Shield as part of their superior products line. David Burke met with the Nagle management and sales group to review details of the system. The 2020 selling season is in high gear with Nagle having sold 120,000 F2 of Shield with more to come.

Nagle Athletic Surfaces, is part of the Laykold team and exclusively uses Laykold color surfacing for their projects. As part of that team effort Nagle has pursued and gotten approval from the AstroTurf Cooperative Purchasing Program to approve the use of TitanTrax Shield surfaced with Laykold color surfacing for COOP purchasing. Any Laykold surfacing contractor can use the COOP to sell work to schools bypassing the public bid platform.

Nagle Athletic Surfaces employs in house crews and equipment for all of its projects. Ngi Sports is excited to be working with NAS based in Syracuse, NY, to further develop the New York, Pennsylvania and surrounding markets for TitanTrax Shield.

Client of the Month: Ace Tennis Surfaces Established in 2006

Since 1994, Sean Barry, owner and founder of Ace Tennis Surfaces LLC, has been working in the sport surfacing industry. He has done over 1000 commercial and residential courts and has worked with many different manufacturers on dozens of different types of surfaces. From asphalt or concrete, artificial grass or cushion, roof tops or basements, the quality and versatility of his work are unmatched. His expertise has not only taken him around New England but around the world.

Most recently, he was contracted to install a bank of 9 NGI Sports ProBounce Tennis Surfaces at Ripp Park in Waunakee, WI. This was a unique opportunity as the courts were installed over a crushed rock base. With the aging infrastructure at Ripp Park courts it was determined that grinding the existing asphalt on the courts and adding new base materials was the best solution for the rebuild. Ace has worked with NGI sports on similar projects in other parts of the country offering solutions for all weather courts with the “Overlay Renovation Technology” from NGI Sports.

When Sean is on site in different parts of the country he can be seen on his off time riding his Harley which travels with him. Often when his wife Jeanne joins him on the road they can be seen enjoying the countryside on his bike.


July 15, 2019

Client of the Month: AllSport America

AllSport America Inc, has done business in N California and Nevada for the past 40 years. Part of their umbrella includes Sport Court Northern California and Boccee Builders of America. These operations focus on the residential backyard tile business for multisport applications and innovative bocce surfaces for both commercial and residential applications. Phil Park has been operating the business since 1979 and has successfully completed over 12,000 projects in his tenure.

Barrett Park, has worked at the business for most of his life from installing courts as a teenager to most recently managing sales. Recently the day to day operations of the business have been turned over to Barrett. Although Phil Park remains CEO of the company, working with Barrett as an advisor he has moved his focus to developing the bocce ball surfacing company named “Bocce Builders of America”. Barrett’s college sports experience and advanced business degree are now helping him to expand his core operations. He is expanding the operation to include a focus on NGI Sports “Overlay Renovation Technology”, building new and rehabilitating old tennis courts.

Expanding the focus of the core business to include the tennis court surfacing from NGI Sports, Barrett has hired, Lane Rutherford (from Oregon), to lead their NGI installation team. Lane has worked on projects across the USA installing the overlay systems and will allow AllSport to expand to install more successful projects. Presently, AllSport is working on 2 ProBounce tennis courts for a couple of high-end families, and has just secured a 2 court TitanTrax Air project for the City of Martinez, CA.

Barrett says ” Our team takes pride in our high-level of customer service and installation practices to ensure the client is taken care of from start to finish”. AllSport America is a Licensed General Engineering Company in both California and Nevada. Barrett Park is a Certified Tennis Court Builder, certified by the American Sports Builders Association.

October 1, 2019

Client of the Month: Bishop's Tennis Inc.


Providing Expert Tennis Court Maintenance, Repair & Construction Throughout Maryland, Virginia & DC for More than 30 Years

Skip Bishop started Bishop’s Tennis with a focus on surfacing. Today, Bishop’s is a leading expert in clay and all weather tennis court maintenance and construction in the northern VA market. Playing tennis has been a lifetime adventure for Skip. He loves bringing out the wooden racquet even after surgeries on a rotator cuff and knees. Skip enjoys surfing in New Jersey and Hawaii and playingtennis at a high level against the 40 and over crew anywhere he can. Although he continues to be involved with the business, with his extended family and nine grandchildren more and more of the day to day activities are handled through his field and office staff.



Great Falls VA, Before and After
Jonathan Mullins is the Business Manager for Bishop’s. He spearheads the project organization and materials procurement management.A majority of the daily sales activity is managed by Chip King, the Director of Business Development for Bishop’s. As an Elite Professional member of the USPTA, he has been recognized professionally as both a player and coach and held numerous board and committee appointments in the tennis industry. He has served multiple terms as Chairman on the USTA Mid-Atlantic Junior Competition Committee, and in 2012 received the USTA/ MAS President’s Award for his dedication to improving junior tennis. He remains an active volunteer in Mid-Atlantic and continues to play competitively. Bishop’s Tennis’ focus is on the residential, commercial and club tennis court construction throughout Northern VA. They are an outstanding builder and install several NGI Sports ProBounce surfaces yearly. They installed their first ProBounce court 17 years ago!!
Berryville VA: ProBounce | P: (703) 661-8000
July 15, 2019

Client of the Month: Court Makers, Inc

Court Makers Inc. has been in the tennis industry since 1976. They have been steadily growing through word of mouth referrals as well as direct contracts with the South's most prestigious clients.

A family business, Marshall Dye along with his daughters Bridget Davis and Eileen Johnson and son in law Dwayne David, run the day to day operations. Marshall is an avid tennis player, golfer and hunter, but probably loves his family and 5 grand children more than anything.

Most Tennis players in the Atlanta area have probably played on a tennis court designed, constructed, lighted or resurfaced by Court Makers.

Marshall works closely with the ALTA community, swim & tennis clubs, private country clubs, schools, private home courts, apartment courts and public courts throughout Georgia. As a leader in tennis court design, construction, resurfacing, lighting and equipment supply, Court Makers top priority is getting the job completed on time and in a professional manner.

Marshall Dye and the Court Makers team strive to be innovators in the market. Marshall is a certified tennis court builder with American Sports Builders Organization.

10 Years ago Marshall heard about the new TitanTrax Shield crack renovation technology through NGI Sports being introduced into the tennis community. Marshall drove to Chattanooga to meet David Burke and see the product in person. In that one meeting Marshall requested to be the exclusive representative for TitanTrax Shield in the Atlanta Metropolitan area.

July 15, 2019

Client of the Month: Court One

Court One was started in 1980 by two retired Navy officers in the Tidewater area of Virginia. They opened an office in Raleigh, NC to capitalize on the growth in the Triangle area of NC. In 1985, Gerry Wright purchased the NC operations with the idea of expanding Court One’s services of building and resurfacing hard tennis courts. Over the years Court One has expanded to two offices to better service our customers in NC, SC and VA.

Of course, a company’s success depends on the contribution of its management team and the competency of its crews. Vice Presidents Brian Wright (CTCB), Jon Wright (RA) and Branch Manager Rich Benson (past CTCB) guide the production crews and subcontractors. As a licensed General Contractor in NC, SC and VA, Court One oversees a variety of court and running track projects for both the public and private sector.

Not only has Court One expanded their office locations in North Carolina but also their services to include running tracks, clay courts, bocce, basketball, and pickleball. Court One was named “Builder / Contractor of the year by Tennis Industry Magazine for 2016.

Attracted by the challenge of constantly striving to provide a better product, Court One has embraced new technology and products that can provide customers more and better options for the repair of their courts. NGI continues to introduce innovative repair options. Now Court One not only does all weather tennis courts but has expanded their services featuring projects like NovaBocce courts at Carolina Arbors, cushion overlay systems like the new installation of 8 TitanTrax Xtreme tennis courts at the home of the 2016 mens state champion, Walter Hines Page HS in Geensborro, NC.

Court one Brian Wright also worked with the City of Charlotte and the Charlotte Hornets' Michael Jordon to provide TitanTrax Xtreme cushioned basketball courts for the inner city basketball program. “We are excited to bring the Hornets Experience to these three neighborhood courts in Charlotte,” said Hornets President & COO Fred Whitfield. “It is important to us to give back to the youth of our community, and we can think of no better way for them to show their love of both the Hornets and the game of basketball than by playing on Hornets-themed courts at their local parks. We also want to thank the NBA for demonstrating its continued commitment to Charlotte and Mecklenburg County by joining us in this effort.”



November 1, 2019

Client of the Month: General Acrylics, Inc.


General Acrylics, Inc. was incorporated in 1958 in the State of Arizona under the name of W-H Construction, Inc. By the early 1960’s the company responded to the growing demand for tennis court construction and all-weather track surfacing. By 1972 the tennis court and track construction division had grown to the point that it was split off and named General Acrylics, Inc. In 1987 the current owner, Jonnie Deremo, purchased 100% of this division of the company and its stock.

General Acrylics, Inc. is currently headquartered at 22222 N. 22nd Avenue, in Phoenix, Arizona with an office and warehouse of approximately 11,000 square feet in size. They install both latex and polyurethane track surfaces and in 1998 began installing synthetic turf.

Since 1987, General Acrylics, Inc. has become the leading tennis court, track and synthetic turf contractor in Arizona and the entire Southwest region. Their motto “See the Difference” signifies their commitment to providing reliable products and quality installations. Jonnie Deremo has always ensured that General Acrylics is a leader in the sports construction industry by continuing to develop innovative products, applications and construction methods.

Jonnie grew up in a small farming town in Southwestern Colorado. He was raised working on the family farm alongside his father from a young age–an experience that laid the foundation of his relentless work ethic and entrepreneurial spirit.

When he was 8 his parents made the decision to move to Arizona part time so that that he could attend school in the valley, where he graduated from Moon Valley High School, he then attended Glendale Community College and completed classes in estimating as well as blue print reading and drafting. During school he realized his passion lay in owning and running a business of his own.

In 1982 Jonnie left the farm to race motocross professionally around the country. In 1984 he started a service business which he later sold looking to get into the construction industry. His search led him to General Acrylics. With his athletic background, sports construction struck a chord and in October of 1987 he purchased the business from it’s founder, Dick Hoover. From that point on Jonnie worked tirelessly to grow General Acrylics into one of the premier sports facility construction companies in the U.S.

General Acrylics has been a long-time member of the American Sports Builders Association and Jonnie is an ASBA certified tennis court and running track builder.

When not in the office Jonnie spends most of his time outdoors riding dirt bikes, mountain biking, fishing and spending quality time with his family. He still spends a large amount of time in his former home state of Colorado.
Below are two of General Acrylics Tennis Court installations using NGI products, at Rio Verde Country Club and Rose Mofford Park, both in Arizona.
Below is a before and after of a recently completed project by General Acrylic at Pah Rah Park using NGI’s ProBounce
Completed 06.11.19
*NGI Sports invites all customers, old and new, to become a "Client of the Month." Send your company details, news, images and updates to to be featured in one of our upcoming issues of The NGI News.
August 8, 2019

Client of the Month: Lineberry Tennis

John E. Lineberry, established the Lineberry Tennis company in 1988, and turned Lineberry Tennis into a successful family-operated tennis company. Lineberry Tennis, based in Henniker NH, has been designing and installing tennis courts and recreational facilities throughout New England for over twenty-five years.

John’s background in tennis court construction goes back to summer work for NESCO, a tennis and sealcoating company located outside of Boston MA. John worked there while attending New England College on an athletic scholarship for ice hockey. John was Captain of the ice hockey team and graduated in 1973, as the 3rd all time scorer on the team. John, after graduating, continued to work full time at NESCO until 1977. John left NESC to join Pike Industries, one of the largest paving and construction companies in New Hampshire, as the company’s Tennis Division Manager. His background in tennis court construction includes full turnkey construction and surfacing of asphalt tennis courts and building clay courts as well as fencing and lighting amenities. John also managed the construction personnel and budgeting for the division.

This experience in design, installation, maintenance and consulting led to the opening of Lineberry Tennis in 1988. Lineberry Tennis traditionally works in New England and most of their maintenance and reconditioning contracts are in New Hampshire and Northern Massachusetts. In 2006, Lineberry Tennis acquired New England Recreational Services of New London, NH, thus expanding their client base and allowing for diversification of the company. Lineberry specializes in all-weather and clay tennis courts with an emphasis in specialty surfaces like NGI ProCourt and ProClay. They also install NGI putting greens, basketball hoops/key lines and NovaBocce courts.

John also was instrumental in the original testing and development of the patented ProClay surface with NGI. He assisted in the first clay court (a ProClay court) installed at the International Tennis Hall of Fame as well as the installation of ProClay at the Vestavia Country club in Birmingham AL with NGI and Welch tennis.

John’s son Johnny worked for Lineberry Tennis growing up and in the summers while attending Western New England College. Johnny also played ice hockey. He has traveled as well in winter months after graduation installing tennis courts in Hawaii. Johnny is an avid surfer going to Hawaii and Costa Rica honing his surfing skills on the world class waves. Hunting white tails and traveling are his other hobbies. Dirt biking around the Andes in Peru, staying in hostels and with locals are some of his travel likes.

In 2015 he acquired Lineberry Tennis from his father and is busy expanding the area of operation and product offerings. He installed the companies first TitanTrax Shield surface in 2019. John is also taking his company out of New England after the construction season closes there to do work on projects around the USA.

July 15, 2019

Concrete Thinking

Let’s make sure we’re putting in court surfaces that keep our athletes healthy.

Would you want your high school track team athletes to practice and compete on bare concrete? How about your football team? Or basketball team, or soccer team?

Do you know which athletes do play on what is essentially bare concrete? Tennis players! The time has come to do something to change that, and to build safe play areas for our young tennis athletes.

I recently saw an article on court surfaces and was shocked that professionals in the sports and engineering field—experienced in specifying athletic fields and running tracks, with high-end shock attenuation and force reduction qualities—are promoting the virtues of essentially bare post-tensioned concrete when it comes to the sport of tennis. What about protecting tennis athletes and extending their time on the court? How many players, especially young players, is our sport losing to injuries caused by hard surfaces? How many high school tennis players have to quit, their careers shortened because of substandard or unsafe facilities?

Shoe companies constantly tout the shock-absorbing and cushioning qualities of tennis shoes. Sure, this may help lessen the impact with the court surface, but is this really the most effective answer to a playing surface that is essentially a concrete pad?

The fast-paced game played on these unforgiving surfaces jolts the body, wreaking havoc on joints, backs, legs and more. Parents of student athletes in all sports want their kids protected, but often, parents of tennis players don’t even consider the surface the youngsters are playing on regularly. An aggressive serve-and-volley game on hard courts may not so much be developing better tennis players than causing long-term injury to countless players, who may well have to stop playing altogether.

“Overall, recurrent injuries resulted in greater time away from sport, a higher risk of sport discontinuation, and a higher likelihood of surgical intervention,” according to the Jan. 6, 2018, edition of the Orthopedic Journal of Sports Medicine. “In tennis … the sprinting, stopping and pivoting, and pounding motions place repeated rotational shear and loading forces on each joint of the lower extremities which, in turn, places the athlete at increased risk for acute and overuse injury."

It’s not that this industry lacks the technology for softer court surfaces. Tennis is the only sport played on everything—grass, clay, crushed rock, synthetic turf, asphalt, concrete, rubber, urethane cushion, plastic tiles, carpet. Hard courts speed up the ball, creating more force on the arm, and keep the bounce lower. A few coats of paint may look pretty, but it does not make a surface safe for young athletes.

Often with court construction, our schools are not considering child safety and what bare concrete does to a young athlete. This is not to say that post-tensioned concrete is not a good base. It certainly is, but the tennis surface on top of the concrete needs to be more than what is essentially a coat of paint. These player-“unfriendly” facilities put children—and schools—at risk.

For the future of this sport, let’s all address this—court builders, facility managers, tennis coaches, teaching pros, the USTA, ASBA, TIA. We need to promote surfaces that keep our young athletes healthier and safe from injury, so they can continue playing tennis recreationally and competitively for their entire lives.

by Rick Burke - Longtime tennis and sports industry executive; President of NGI Sports

May 1, 2020


NGI Sports thoroughly recommends at this time of uncertainty that we all observe the recommendations of the government and health authorities to stay a safe distance from others and as much as possible stay home. Exceptions are shopping for food and other necessary supplies, work where unavoidable, but otherwise stay home, stay safe and see you all soon.

With all the challenges...

we are facing in the tennis construction industry managing time to get in and out of projects is more important than ever. Consider the TitanTrax Shield when beginning a crack repair project. Individual crack repair methods take 40% more time to complete than laying the shield over the entire surface if you have good weather. This means you get to the next job faster. TitanTrax Shield also has a five year warranty against cracking. The Shield protects the entire pavement from water, ice and sunlight oxidation making new cracks less likely to happen. Owners are never happy spending 12 to 15 thousand on a color and crack repair surfacing project only to have new cracks show up the next year. TitanTrax Shield is working smarter.

May 1, 2020

Featured Surface -- Nova Bocce

Did you know...

Bocce is closely related to British bowls and French pétanque, all having developed from games played in the Roman Empire. It was developed into its present form in Italy (where it is called bocce, the plural of the Italian word boccia which means 'bowl' in the sport sense), it is played around Europe and also in regions to which Italians have migrated. The popularity of the game spread first amongst descendants of Italian migrants but has slowly spread into the wider community.

Bocce is traditionally played on natural soil and asphalt courts. Bocce balls can be made of wood and various alternates and are spherical with no inbuilt bias. A game can be conducted between two players, or two teams of two, three, or four. A match is started by a randomly chosen side being given the opportunity to throw a smaller ball, the jack, and the Bocce ball is normally thrown using an underarm action. This is generally used to knock either the jack or another ball away to attain a more favorable position. Tactics can get quite complex when players have sufficient control over the ball to throw or roll it accurately. The United States Bocce Federation (USBF) says there are one million players in the USA and that Bocce is the third most popular game in the world after soccer and golf.

For a gentle rolling game, ideal for casual and recreational play. NGI Sports’ proven, standard in filled, low-maintenance turf surface can be installed over asphalt, concrete, or a stone dust base.


  • Classic Cushioned artificial turf surface designed to hold shots.
  • Playable even after heavy rain due to superior drainage.
  • High Performance.
  • No frost heave.
  • Long Lasting.
  • Aesthetically pleasing.
  • Only light maintenance ( Brush after use to remove debris).

A slightly more aggressive surface that allows quick and even play. No infill necessary; Easily Installs over concrete or asphalt.


  • No infill or maintenance required.
  • Long lasting cushioned turf surface.
  • Durable.
  • Natural look and feel.
  • Quiet play.

January 3, 2017

Force Reduction on Tennis Court Surfaces

NGI Sports specializes in surfaces that provide optimum playability and cushioning properties. At NGI Sports material science is becoming one of the largest areas for innovation in tennis surface engineering and technology. Force reduction through cushioning and shock attenuation is not only an important property of a tennis court surface, it is also considered a key indicator of the performance, safety, comfort, and suitability of the surface for play.

A tennis player’s lower body is subject great stress and abuse through movements that create different forces on the lower extremities. Rapid stopping or foot planting creates some of the highest forces in tennis. There are frequent center of gravity adjustments where the body's center of gravity needs to be adjusted in any direction quickly and in a controlled manner, the direction of the forces placed on the foot and leg are forward, backwards, vertical as well as lateral. The body encounters more than just its own weight worth of forces from the energy returned from the tennis court. The surface therefore is important in reducing the impact of those forces to your lower leg and back.

As a designer and manufacturer of tennis court surfaces we use impact tests to measure and evaluate the effects surfacing design and surface design changes have on the impact forces generated on the body from the surface.

Testing results assist owners and players in making an informed, efficient, and empirical decision concerning a replacement tennis surface and for decisions regarding new surface selection. Puhulla et al (1999) defines hardness as “the ability of the surface to absorb shock imparted by the colliding object”. The most promising piece of equipment to measure surface hardness in the field is the Clegg Impact Hammer ®. This apparatus is an accelerometer device that relates to the deceleration of a falling weight on impact (Sifers and Beard, 1992; Neylan et al 1998).

We have conducted impact tests on numerous court surfaces. The impact forces simulated in the test method are intended to represent those produced by the lower extremities of a tennis player during play and impact on the tennis court. The Clegg machine fitted with electronic sensing instrumentation. Results are expressed in G Max values from 100 to 500. Benchmark figures for our use were based on concrete, asphalt and clay pavements.

In most cases clay (fast-dry) court play on courts two (2) to six (6) years old is thought to provide for a very comfortable and forgiving surface. Of course, the slide or foot release factor is not considered in this test. Results are based on an average of numerous sites tested with varying site conditions. Note that a larger numerical value reported represents less force reduction, a surface harder on the body.

Post Tension Concrete color only 732
Concrete slab tennis court with filler coats & acrylic color 495.1
Asphalt tennis court with acrylic color 334.3
Fast-Dry tennis court (4 yrs old) 244.6
Fast-Dry tennis court (8+ yrs old) 327
ProBounce all weather surface 245.3 (over cracked asphalt, 8 years old)
ProClay Tennis Court Surface 181.1 (over crushed stone base, 6 years old)
ProCourt XP (Granule In-filled Synthetic Turf Court) 132.4 (over cracked asphalt, 6months old)
ProXtreme (Urethane Cushioned Court) 249.5 (over cracked asphalt, 1 year old)
TitanTrax Shield with DecoTurf Cushion 292.1 (over concrete slab)

PROBOUNCE 50% 27% 0%
PROCOURT 73% 60% 46%
PROCLAY 63% 46% 26%
XTREME 50% 48% 30%

These tests indicate a significant decrease in stress or advantage in force reduction for the NGI Surfaces. This appears true in all cases when compared to tennis courts built with hard pavement; thin cushioned finishes and as good as or better than clay courts in good condition.

We are continuing this study to build a database that compares the most prevalent courts in use today.