GridSherpa

iRacing GT1 Calendar

1 matching series across 12 scheduled series-weeks, including 0 fixed-setup series. Browse every published week, track and race cadence.

2026 Season 4 · 1 series · 12 track configurations · 4 cars · 0 fixed-setup series

Categories: SPORTS CAR. Published week starts run from to . The most-scheduled configuration is Autodromo Nazionale Monza - Grand Prix, used for 1 series-week.

Series in this calendar

  • Proto-GT Challenge 2026 Season 4

2026 Season 4 schedule

iRacing GT1 Calendar: official series weeks
WeekWeek startsSeriesTrackRace cadenceLength
1Proto-GT Challenge 2026 Season 4Daytona International Speedway - Road CourseRaces every 2 hours at :45 pastRolling 30 mins
2Proto-GT Challenge 2026 Season 4Lime Rock Park - ClassicRaces every 2 hours at :45 pastRolling 30 mins
3Proto-GT Challenge 2026 Season 4Hockenheimring Baden-Württemberg - Grand PrixRaces every 2 hours at :45 pastRolling 30 mins
4Proto-GT Challenge 2026 Season 4Nürburgring Nordschleife - IndustriefahrtenRaces every 2 hours at :45 pastRolling 5 laps
5Proto-GT Challenge 2026 Season 4Circuit de Spa-Francorchamps - EnduranceRaces every 2 hours at :45 pastRolling 50 mins
6Proto-GT Challenge 2026 Season 4Road America - Full CourseRaces every 2 hours at :45 pastRolling 30 mins
7Proto-GT Challenge 2026 Season 4Autodromo Nazionale Monza - Grand PrixRaces every 2 hours at :45 pastRolling 30 mins
8Proto-GT Challenge 2026 Season 4Circuito de Navarra - Speed CircuitRaces every 2 hours at :45 pastRolling 30 mins
9Proto-GT Challenge 2026 Season 4Circuit de Barcelona Catalunya - HistoricRaces every 2 hours at :45 pastRolling 30 mins
10Proto-GT Challenge 2026 Season 4Suzuka International Racing Course - Grand PrixRaces every 2 hours at :45 pastRolling 30 mins
11Proto-GT Challenge 2026 Season 4Road Atlanta - Full CourseRaces every 2 hours at :45 pastRolling 50 mins
12Proto-GT Challenge 2026 Season 4Sebring International Raceway - InternationalRaces every 2 hours at :45 pastRolling 30 mins