What looks like a turf problem is often a soil, water or compaction problem. We measure the field, find the cause and give you a written plan: what to fix first and what can wait.
We measure ten categories on every field: surface hardness, compaction, moisture, salinity, temperature, infiltration, soil chemistry, soil texture, levelness and grade, and turf cover and thatch. Your Field Condition Report arrives in 10 business days: readings against the standards, safety flags, your fields ranked, the top three priorities and quotes for the first jobs. The full Field Program Plan, the year's calendar with materials, rates and sequencing, comes with the Field Program.
Book a free field assessment →Collect data from the surface, soil and rootzone.
Read the numbers against how the field was built, how it is used and the climate.
Fix the cause, not just the symptom.
Our own crews and machines can do the work.
Measure again to confirm the result.
We prescribe from your field's readings. Every item in our proposal points to a measurement from your assessment, and after the work we measure again and show you the results.
| What we measure | What it tells you | What we test against |
|---|---|---|
| Surface hardness | How hard the ground hits a falling player | Safe: 40 to 100 g on the Clegg hammer, FIFA's natural-pitch limits (100 is also the NFL game-day limit). 200 g and above: serious head-injury risk (Penn State) |
| Soil compaction | Whether roots can grow | Roots slow above 100 psi and stop near 300 psi |
| Soil moisture | Water available to the grass, and why the surface plays soft or hard | Mapped across the field; tracked live by in-ground sensors |
| Infiltration | How fast rain soaks in instead of pooling | Sand-based rootzones: 6+ inches per hour (USGA spec) |
| pH and nutrients | Whether fertilizer can work | Target pH 6.0 to 7.5 |
| Salinity | Salt stress from water or fertilizer | Tracked by in-ground sensors |
| Organic matter | Thatch that softens the surface and holds water | Measured by depth in lab cores |
| Levelness | Hollows that turn an ankle and throw off the ball | No hollow over 1.2 inches under a 10-foot straightedge (FIFA limit) |
| Turf cover | Footing, and how the surface wears | Never under 75 percent (FIFA limit) |
References: FIFA Natural-Pitch Rating System · NFL surface hardness protocol · ASTM F1702 / F1936 / F355 · Penn State Center for Sports Surface Research · USGA rootzone specifications. Traction, ball roll and ball rebound are measured to the full FIFA protocol by accredited test institutes.
When you want the measurements repeated and the full plan, the Field Program's Monitor level puts us on your fields monthly or quarterly: the same grid every visit, a report and a 90-day action plan after each one, the annual agronomic plan, the lab work, and an agronomist by phone. Your crew does the work.
Technical direction for new builds, conversions and short deadlines.
A season plan based on your soil, calendar and budget.
Lab testing of what is below the surface.
Hardness, moisture, compaction and evenness.
Fertilizer plans based on lab results.
A field plan for before, during and after the event.
Soil moisture, salinity and temperature
Surface hardness
Surface hardness testing for stadium pitches
In-ground sensors tracking moisture, temperature and salinity live
World Sports' quality-control platform. You receive OneTurf reports on the work done and in progress.
B.S. in Agronomy, M.S. in Agriculture. 30 years in pro sports turf; with World Sports since 1996. Head groundskeeper at Arena Corinthians for the 2014 World Cup opening match.
B.S. in Agronomy, M.S. in Agriculture. 30 years in pro sports turf. Joined World Sports in 1996 and opened the US operation in 2005. Head groundskeeper at Arena Corinthians for the 2014 World Cup opening match. Advised on FIFA World Cup 2014 fields in Brazil and FIFA World Cup 2026 fields in Mexico.
Agricultural engineer. 200+ sports-field projects in Brazil, Singapore, Florida, Nevada and California since 1997.
Agricultural engineer with a postgraduate degree in agribusiness. With World Sports since 1997, with more than 200 sports field projects in Brazil, Singapore, Florida, Nevada and California.
Agronomist. 25+ years in sports turf: drainage, irrigation, hybrid turf and ready-to-play systems, including the 2014 and 2022 FIFA World Cups.
Alexandre Vieira is an Agronomist with over 25 years of sports turf experience and a postgraduate degree in Strategic Project Management. Specializing in drainage, irrigation, hybrid turf and Ready-to-Play systems, he has contributed to the 2014 and 2022 FIFA World Cups, Rio 2016 Olympics and Copa America. He regularly attends industry exhibitions and technical missions across Europe, the USA and the Middle East to advance his expertise in emerging turf technologies.
Agronomist. Stadium construction and tournament field operations in Brazil, Peru and Mexico, including the Guadalajara stadium pitch at the 2026 FIFA World Cup.
Lucas Pedrosa is an Agronomist with experience in sports turf construction, renovation and maintenance. His portfolio includes the 2013 FIFA Confederations Cup, 2014 FIFA World Cup, Rio 2016 Olympics, 2019 Copa America, 2019 FIFA U-17 World Cup and 2026 FIFA World Cup, where he oversaw the Guadalajara stadium pitch. He has led technical operations at Maracana and Mineirao and helped develop Peru’s national team training center, working with clubs, federations, leagues and event organizers.
Yes. Most clients start with the free field assessment. We measure ten categories on every field and send your Field Condition Report in 10 business days, with readings against the standards, safety flags, your fields ranked, the top three priorities and quotes for the first jobs.
Surface hardness, compaction, moisture, salinity, temperature, infiltration, soil chemistry, soil texture, levelness and grade, and turf cover and thatch. We use tools such as POGO sensors, the Clegg hammer, RAW Stadia and Soil Scout in ground sensors.
40 to 100 g on the Clegg hammer, the FIFA limits for natural pitches. 100 g is also the NFL game day limit. At 200 g and above there is a serious head injury risk, according to Penn State research.
Those are measured to the full FIFA protocol by accredited test institutes. Our assessment covers the agronomic and safety readings that tell you what to fix first.
You get a written plan built from your field's readings: every item in our proposal points to a measurement. Our own crews and machines can do the work, and afterwards we measure again and show you the results. If you want the measurements repeated through the year, the Field Program's Monitor level puts us on your fields monthly or quarterly.
