Overview
- The specially engineered 'carpet hybrid' turf is installed and under active management at all 16 World Cup stadiums, with FIFA staff and John Sorochan's University of Tennessee team overseeing care as of June 30, 2026.
- The turf is roughly 95% natural grass with a 5% synthetic stabilizer, and researchers tailored species mixes — for example Kentucky bluegrass/rye blends for roofed sites and Bermuda for warm open‑air venues — to make ball and player performance consistent.
- Development and testing took years, with reporting saying between five and seven years of R&D using custom rigs and player‑weight simulations to measure ball bounce, footing and impact on play.
- Delivering and maintaining the sod required coordinated logistics: regional sod farms, refrigerated long‑haul trucks, specialist installation crews, grow‑light rigs, vacuum moisture systems and teams of up to about 50 people at some venues.
- Most pitches have drawn positive feedback for playability, but select sites such as MetLife continue to need intensive monitoring for hardness and drying, and the visible installations are increasing pressure in NFL/NFLPA talks over permanent grass versus turf because of cost and scheduling tradeoffs.