SRO has unveiled its 2027 season calendars for GT World Challenge America, GT America, GT4 America, and TC America, highlighted by the return of a fan-favorite circuit and a significant race format change.
The schedules were revealed during SRO’s “State of the Sport” address at this weekend’s CrowdStrike 24 Hours of Spa, where the organization also announced several new partnerships set to begin in the coming months and throughout the 2027 season.
The 2027 campaign will feature seven race weekends, beginning with SRO America’s lone West Coast stop at Sonoma Raceway on April 2-4.
The championship then heads to Texas for an all-new eight-hour endurance race at Circuit of The Americas (COTA) on May 7-9. The Texas 8 Hour replaces the traditional October endurance race at Indianapolis Motor Speedway, while Sebring International Raceway has been dropped from the calendar after serving as the series’ Mother’s Day weekend venue for the past several seasons.
As in previous years, the race will also serve as the North American round of the Intercontinental GT Challenge, continuing the championship’s tradition of hosting a single U.S. endurance event on its global calendar.
The schedule continues its refreshed look with the return of Watkins Glen International for the first time since 2022 on May 21-23. The iconic 3.4-mile circuit in New York’s Finger Lakes region will host all four multi-class SRO America championships next season.
The season then returns to Road Atlanta on June 18-20 after the circuit made its successful return to the schedule this year for the first time since 2011. Following a summer break, the championship resumes at Road America on August 27-29 before visiting Barber Motorsports Park on September 10-12.
The 2027 season once again concludes at Indianapolis Motor Speedway on October 1-3. However, instead of the traditional eight-hour endurance race, the finale will be contested as a three-hour event, making COTA’s Texas 8 Hour the lone eight-hour race on the SRO America calendar.
In addition to the multi-class championships, Toyota GR Cup also announced its 2027 schedule. The series will open its season on the Streets of Arlington in March as part of the IndyCar weekend before competing alongside GT World Challenge America at nearly every event on the calendar.
The only championship without a 2027 schedule announcement was McLaren Trophy America, which is expected to transition into an IMSA-sanctioned series next season.
Alongside the calendar announcement, SRO also revealed a collaborative partnership with IMSA for the annual Balance of Performance Test at Daytona in December. The initiative will allow both organizations to share GT3 performance data across their respective championships, helping establish a common baseline for all participating manufacturers.
The 2026 SRO America season resumes at Road America on August 28-30 as the series returns from its summer break.
