GridSherpa

iRacing Endurance Calendar

9 matching series across 64 scheduled series-weeks, including 0 fixed-setup series. Browse every published week, track and race cadence.

2026 Season 4 · 9 seriess · 38 track configurations · 34 cars · 0 fixed-setup series

Categories: SPORTS CAR. Published week starts run from to . The most-scheduled configuration is Nürburgring Combined - Gesamtstrecke VLN, used for 10 series-weeks.

Series in this calendar

  • 2026 8 Hours of Indianapolis Presented by PC's by THOMAS
  • Creventic Endurance Series - 2026 Season
  • Global Endurance Tour - 2026 Season 4
  • GT Endurance Series by Simucube - 2026 Season 4
  • IMSA Endurance Series - 2026 Season 4
  • IMSA Michelin Pilot Challenge - 2026 Season 4
  • IMSA Sportscar Endurance Challenge - 2026 Season 4
  • Nurburgring Endurance Championship - 2026 Season
  • Production Endurance Challenge - 2026 Season 4

2026 Season 4 schedule

iRacing Endurance Calendar: official series weeks
WeekWeek startsSeriesTrackRace cadenceLength
1Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
2Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
3Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
4Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
5Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
1Creventic Endurance Series - 2026 SeasonAutodromo Internazionale del Mugello - Grand PrixRaces on Saturday at 1 & 13 GMTRolling 720 mins
6Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 360 mins
2Creventic Endurance Series - 2026 SeasonCircuit de Spa-Francorchamps - Grand Prix PitsRaces on Saturday at 1 & 13 GMTRolling 720 mins
7Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
3Creventic Endurance Series - 2026 SeasonCircuit de Barcelona Catalunya - HistoricRaces on Saturday at 1 & 13 GMTRolling 720 mins
8Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
4Creventic Endurance Series - 2026 SeasonNürburgring Grand-Prix-Strecke - BES/WECRaces on Saturday at 1 & 13 GMTRolling 720 mins
1Production Endurance Challenge - 2026 Season 4Hockenheimring Baden-Württemberg - OuterRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
1GT Endurance Series by Simucube - 2026 Season 4Silverstone Circuit - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
1IMSA Endurance Series - 2026 Season 4Road Atlanta - Full CourseRaces every other Saturday at 2, 7, 18 GMT and Sunday at 14 GMTRolling 160 mins
1IMSA Sportscar Endurance Challenge - 2026 Season 4Silverstone Circuit - Grand PrixRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
2Production Endurance Challenge - 2026 Season 4Autodromo Nazionale Monza - GP without first chicaneRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
5Creventic Endurance Series - 2026 SeasonCircuit de Barcelona Catalunya - HistoricRaces on Saturday at 1 & 13 GMTRolling 1440 mins
1Global Endurance Tour - 2026 Season 4Indianapolis Motor Speedway - Road CourseRaces every other Saturday at 7, 18 GMT and Sunday at 14 GMTRolling 360 mins
2GT Endurance Series by Simucube - 2026 Season 4Road Atlanta - Full CourseRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
1IMSA Michelin Pilot Challenge - 2026 Season 4Indianapolis Motor Speedway - Road CourseRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
3Production Endurance Challenge - 2026 Season 4Snetterton Circuit - 300Races Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
3GT Endurance Series by Simucube - 2026 Season 4Circuit Zandvoort - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
2IMSA Endurance Series - 2026 Season 4Fuji International Speedway - Grand PrixRaces every other Saturday at 2, 7, 18 GMT and Sunday at 14 GMTRolling 160 mins
2IMSA Sportscar Endurance Challenge - 2026 Season 4Brands Hatch Circuit - Grand PrixRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
4Production Endurance Challenge - 2026 Season 4Motorsport Arena Oschersleben - Grand PrixRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
2Global Endurance Tour - 2026 Season 4Red Bull Ring - Grand PrixRaces every other Saturday at 7, 18 GMT and Sunday at 14 GMTRolling 360 mins
4GT Endurance Series by Simucube - 2026 Season 4Mobility Resort Motegi - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
2IMSA Michelin Pilot Challenge - 2026 Season 4Road Atlanta - Full CourseRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
9Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
12026 8 Hours of Indianapolis Presented by PC's by THOMASIndianapolis Motor Speedway - Road CourseFriday at 22 GMT, Saturday at 7, 12, and 16 GMT, Sunday at 00 GMTRolling 480 mins
5Production Endurance Challenge - 2026 Season 4Silverstone Circuit - InternationalRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
5GT Endurance Series by Simucube - 2026 Season 4Indianapolis Motor Speedway - Road CourseRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
3IMSA Endurance Series - 2026 Season 4Long Beach Street CircuitRaces every other Saturday at 2, 7, 18 GMT and Sunday at 14 GMTRolling 160 mins
3IMSA Sportscar Endurance Challenge - 2026 Season 4Summit Point Raceway - Summit Point RacewayRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
6Production Endurance Challenge - 2026 Season 4Nürburgring Grand-Prix-Strecke - Kurzanbindung w/out ArenaRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
3Global Endurance Tour - 2026 Season 4Circuit Gilles VilleneuveRaces every other Saturday at 7, 18 GMT and Sunday at 14 GMTRolling 360 mins
6GT Endurance Series by Simucube - 2026 Season 4Shell V-Power Motorsport Park at The Bend - GT CircuitRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
3IMSA Michelin Pilot Challenge - 2026 Season 4Charlotte Motor Speedway - Roval 2019Races every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
7Production Endurance Challenge - 2026 Season 4Circuito de Navarra - Speed CircuitRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
7GT Endurance Series by Simucube - 2026 Season 4Circuit of the Americas - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
4IMSA Endurance Series - 2026 Season 4Circuit des 24 Heures du Mans - 24 Heures du MansRaces every other Saturday at 2, 7, 18 GMT and Sunday at 14 GMTRolling 160 mins
4IMSA Sportscar Endurance Challenge - 2026 Season 4Circuit Zolder - AlternateRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
8Production Endurance Challenge - 2026 Season 4Sonoma Raceway - Cup LongRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
4Global Endurance Tour - 2026 Season 4Autódromo Hermanos Rodríguez - Grand PrixRaces every other Saturday at 7, 18 GMT and Sunday at 14 GMTRolling 360 mins
8GT Endurance Series by Simucube - 2026 Season 4Circuit de Spa-Francorchamps - Grand Prix PitsRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
4IMSA Michelin Pilot Challenge - 2026 Season 4Circuito de Navarra - Speed CircuitRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
10Nurburgring Endurance Championship - 2026 SeasonNürburgring Combined - Gesamtstrecke VLNRaces on Saturday at 7 & 17:00 GMT & Sunday at 0 & 13 GMTRolling 240 mins
9Production Endurance Challenge - 2026 Season 4Circuit des 24 Heures du Mans - HistoricRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
9GT Endurance Series by Simucube - 2026 Season 4Fuji International Speedway - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
5IMSA Endurance Series - 2026 Season 4Suzuka International Racing Course - Grand PrixRaces every other Saturday at 2, 7, 18 GMT and Sunday at 14 GMTRolling 160 mins
5IMSA Sportscar Endurance Challenge - 2026 Season 4Mobility Resort Motegi - Grand PrixRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
10Production Endurance Challenge - 2026 Season 4Summit Point Raceway - Summit Point RacewayRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
5Global Endurance Tour - 2026 Season 4Silverstone Circuit - Grand PrixRaces every other Saturday at 7, 18 GMT and Sunday at 14 GMTRolling 360 mins
10GT Endurance Series by Simucube - 2026 Season 4Misano World Circuit Marco Simoncelli - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
5IMSA Michelin Pilot Challenge - 2026 Season 4Autodromo Nazionale Monza - Grand PrixRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
11Production Endurance Challenge - 2026 Season 4Watkins Glen International - Classic BootRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
11GT Endurance Series by Simucube - 2026 Season 4Sebring International Raceway - InternationalRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
6IMSA Endurance Series - 2026 Season 4Sebring International Raceway - InternationalRaces every other Saturday at 2, 7, 18 GMT and Sunday at 14 GMTRolling 160 mins
6IMSA Sportscar Endurance Challenge - 2026 Season 4Autódromo José Carlos Pace - Grand PrixRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins
12Production Endurance Challenge - 2026 Season 4Oulton Park Circuit - Island HistoricRaces Friday at 19 GMT, Saturday at 7 GMT, Sunday at 18 GMTRolling 120 mins
6Global Endurance Tour - 2026 Season 4Autodromo Nazionale Monza - Grand PrixRaces every other Saturday at 7, 18 GMT and Sunday at 14 GMTRolling 360 mins
12GT Endurance Series by Simucube - 2026 Season 4Suzuka International Racing Course - Grand PrixRaces Saturdays 9 and 19 GMT and Sundays 17 GMTRolling 180 mins
6IMSA Michelin Pilot Challenge - 2026 Season 4Circuit de Spa-Francorchamps - Grand Prix PitsRaces every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMTRolling 120 mins