IMSA Sportscar Endurance Challenge

logo for IMSA Sportscar Endurance Challenge
IMSA Sportscar Endurance Challenge - 2026 Season 1 - Races every other Saturday at 4 & 15 GMT and Sunday at 0 GMT, 20 GMT
Just like its real-world counterpart, iRacing’s IMSA SportsCar Endurance Challenge allows you to get behind the wheel in both the LMP3 and GT4 classes for some more approachable multi-class road racing. In this series, though, you’ll race in extended events rather than just sprints! Races are held every other week starting in Week 1.

Overview

  • Category: Sports car (5)
  • Track Types: sports_car
  • License Group Types: 3
  • Car Classes: [4018, 2268]
  • Car Types: aienabled, gs, gt4, gtd, lmp3, prototype, road, sportscar
  • Allowed Licenses: Class D 4+, Class C, Class B, Class A, Pro, Pro/WC
  • Allowed Season Members:

Schedule

Week Track Duration Summary Weather
Week 1
(Dec. 20, 2025)		 Circuit de Spa-Francorchamps Bike
(2026-03-01T09:45:00 1x ) 		120 mins
  • Start Type: Rolling
  • Start Zone:
  • Temp: 18.4 to 18.4
  • Wind 23.1 to 23.9
  • Dir 3
  • Skies 1 to 2
  • Rain 0 (25 %)
  • None
Week 2
(Jan. 3, 2026)		 Oulton Park Circuit International
(2026-03-01T12:00:00 1x ) 		120 mins
  • Start Type: Rolling
  • Start Zone:
  • Temp: 18.8 to 18.8
  • Wind 19.6 to 21.5
  • Dir 3
  • Skies 0 to 0
  • Rain 0 (0 %)
  • None
Week 3
(Jan. 17, 2026)		 Circuit Gilles Villeneuve
(2026-04-01T17:50:00 1x ) 		120 mins
  • Start Type: Rolling
  • Start Zone:
  • Temp: 18.5 to 18.6
  • Wind 9.8 to 17.3
  • Dir 2
  • Skies 0 to 1
  • Rain 0 (0 %)
  • None
Week 4
(Jan. 31, 2026)		 Miami International Autodrome Grand Prix
(2026-03-01T12:00:00 1x ) 		120 mins
  • Start Type: Rolling
  • Start Zone:
  • Temp: 27.1 to 27.2
  • Wind 16 to 17.1
  • Dir 2
  • Skies 1 to 1
  • Rain 0 (0 %)
  • None
Week 5
(Feb. 14, 2026)		 Portland International Raceway Full Circuit
(2026-04-01T18:05:00 1x ) 		120 mins
  • Start Type: Rolling
  • Start Zone:
  • Temp: 18.8 to 19
  • Wind 11.7 to 12.4
  • Dir 7
  • Skies 3 to 3
  • Rain 0 (31 %)
  • None
Week 6
(Feb. 28, 2026)		 Mount Panorama Circuit
(2026-03-01T06:55:00 1x ) 		120 mins
  • Start Type: Rolling
  • Start Zone:
  • Temp: 19.1 to 20.2
  • Wind 13.2 to 14.1
  • Dir 3
  • Skies 1 to 2
  • Rain 0 (0 %)
  • None

Configuration

  • Official
  • Rookie
  • Season
    2026 S1
  • Regional Comp.
  • Race Week
    0 (0)
  • Drop Weeks
    2 of 6
  • Multi Class
  • Fixed Setup
  • Drivers
    1 <> 1
  • Cross License
  • Driver Changes
  • Pit Lane Crashes
  • Incident Limit
    25
  • Warn Mode
    1
  • Warn Param 1
    17
  • Warn Param 2
    0
  • Caution Types
    0 /
  • Caution Laps Count
  • GW Checkered Limit
    0
  • Lucky Dog
  • Conduct Rule Mode
    3
  • HardCore Level
  • Car Switching
  • Start on Qual Tyre
  • Short Parade Lap
  • Start Zone
  • Qualifier Starts
  • Heat Racing
  • Num Opt Laps
    0
  • OP Duration (mins)
    120
  • Send to OP.
  • Ignore OP License.
  • OP Session Type.
    170
  • Starters
    6 <> 40
  • Grid By Class
  • Active
  • Complete
  • Diff. Race Tyres
  • Super Sessions
  • Member Restriction
  • Car Restriction
  • View Restriction
  • Start
    2025-12-16… (2)