GrandSlam
Extreme
The premier baseball and softball build. GrandSlam's combined monofilament and parallel-fibrillated canopy on the extreme-cycle backing system. Compatible with NaturalCool heat-mitigation infill to lower surface temperature on July infield practice without water. Built for D1 baseball, pro-affiliated complexes, and stadiums that run a year-round schedule.
GrandSlam Extreme runs the dual-fiber baseball canopy over our extreme-cycle backing, with NaturalCool integrated into the system. The heat-mitigation layer drops surface temperature against conventional infill, and the backing carries the live-BP load year-round.
Engineered to spec. Verified at install.
Full spec sheet.
Every value below is verified at install. Independent third-party Gmax and HIC reports for any project on request as part of the "Numbers, not stories" transparency program.
Download CSI 32 18 23 spec| Pile height | [verify - low-pile baseball spec] |
|---|---|
| Face weight | [verify with Sprinturf rep] |
| Fiber composition | Combined monofilament + parallel-fibrillated polyethylene |
| Backing | Extreme-cycle dual-layer urethane-coated polyester |
| Heat mitigation | NaturalCool infill compatible (no water required) |
| Aesthetic | Single-color or two-color configuration |
| Gmax (ASTM F355) | Engineered < 165 throughout warranty period |
| HIC (ASTM F1936) | Engineered < 1000 |
| Infill compatibility | NaturalCool, crumb rubber, EPDM, TPE, Greenplay organic |
| Country of manufacture | United States. Dadeville, AL extrusion. Chatsworth, GA tufting. |
| Warranty | 8 years limited (fiber, seam, color) |
| Sport applications | Premier baseball, premier softball, D1 and pro-affiliated programs |
A premier program plays year round. The backing has to know that.
GrandSlam Extreme runs the same combined monofilament and parallel-fibrillated canopy as base GrandSlam. The difference is the extreme-cycle backing underneath and the optional NaturalCool heat-mitigation infill on top. Daily live BP, infield reps, and a full home schedule no longer exceed the rated cycle count of the carpet.
Monofilament
The same low-pile monofilament fiber as base GrandSlam. The blade gives the ball a true bounce and the canopy reads the way a manicured infield reads. Tufted into the extreme-cycle backing for a higher annual cycle count.
Fibrillated + NaturalCool
The parallel-fibrillated lock fiber paired with NaturalCool heat-mitigation infill. The fibrillated profile traps NaturalCool granules at the canopy. NaturalCool lowers surface temperature without water, which is what separates a July infield workout from a July medical-tent visit.
Where GrandSlam Extreme is on the ground today.
Premier programs run premier carpets. Four representative GrandSlam Extreme project profiles below. Full project library at /projects/.
![GrandSlam Extreme NCAA D1 baseball stadium installation [verify project name]](/assets/img/projects/sacramento-state-football.webp)
D1 Baseball [verify]
GrandSlam Extreme with NaturalCool infill on a southern conference home stadium.
View case study![GrandSlam Extreme pro-affiliated minor league complex [verify project name]](/assets/img/projects/portfolio-football-feature.webp)
Minor-League Complex [verify]
GrandSlam Extreme with two-color outfield branding. Year-round practice schedule.
View case study![GrandSlam Extreme D1 softball field [verify project name]](/assets/img/projects/portfolio-multiuse-feature.webp)
D1 Softball [verify]
GrandSlam Extreme on a tournament-host softball stadium. NaturalCool infill on the infield arc.
View case study![GrandSlam Extreme premier collegiate baseball stadium aerial [verify project name]](/assets/img/projects/portfolio-football-large.webp)
Conference Stadium [verify]
GrandSlam Extreme with EPDM infill on a year-round practice plus home schedule.
View case studySix questions buyers ask first.
If yours is not here, call the number at the top of the page or email a Sprinturf rep through the contact form. Same-day reply on weekdays.
Who is GrandSlam Extreme built for?
D1 baseball and softball programs, pro-affiliated and minor-league complexes, and high-traffic municipal stadiums where a single diamond hosts daily practice plus a full home schedule. The extreme-cycle backing exists because the heaviest baseball programs run more annual cleat-hours than the standard backing was rated for.
What is NaturalCool and why does it matter on a baseball field?
NaturalCool is Sprinturf's heat-mitigation infill. It lowers surface temperatures without the use of water. On a southern baseball schedule that means infield practice in July is meaningfully cooler than crumb rubber underfoot.
GrandSlam Extreme is engineered for NaturalCool compatibility. Programs running back-to-back tournaments in summer heat get the heat reduction without irrigation infrastructure on the carpet.
How does GrandSlam Extreme differ from base GrandSlam?
Base GrandSlam is the dedicated baseball/softball system. GrandSlam Extreme adds the extreme-cycle backing for higher-traffic programs and the NaturalCool heat-mitigation infill option.
Per-spec ball performance is comparable. Per-warranty performance favors the Extreme build for programs that run a year-round schedule.
Does it come in two colors?
Yes. The two-color configuration is available for programs that want a contrasting infield arc, dirt-cutout shaping, or a darker-tone outfield to match a parent club's identity. The two-color option does not change the underlying performance spec.
Where is GrandSlam Extreme manufactured?
All fibers are extruded at the Sprinturf plant in Dadeville, Alabama. Tufting and coating happen at the Sprinturf plant in Chatsworth, Georgia. Sprinturf is the only North American synthetic turf company that owns extrusion through tufting through coating in-house.
What is the warranty?
GrandSlam Extreme carries an 8-year limited warranty against fiber failure, seam separation, and excessive color fade. As of 2026, Sprinturf has not had a fiber failure on a warranted field since 2010.
Buying through Sourcewell, OMNIA, BuyBoard, or TIPS-USA?
GrandSlam Extreme is on every contract. Most NCAA athletics departments and municipal parks programs can piggyback an existing co-op contract and skip a full RFP.
Spec GrandSlam Extreme on your next diamond.
Request the full spec packet, CSI 32 18 23 three-part spec, BIM family, NaturalCool data sheet, and extreme-cycle backing test history. A regional Sprinturf rep will respond within one business day.