IMSA has surprised fans and the racing industry by releasing 2025 schedules for its primary series in March, on the eve of its second race of 2024. That was allowed in part because of the stability of the schedule, which does not differ in venues or sequence from this season’s.

The IMSA WeatherTech SportsCar Championship will include an 11-race season, including five endurance events that will comprise the IMSA Michelin Endurance Cup. The Michelin Pilot Challenge again will feature a 10-race schedule, including one standalone event at Mid-Ohio Sports Car Course in which the series is the featured race.

IMSA President John Doonan revealed the slate of races that will make up the 2025 schedules for the WeatherTech Championship and the IMSA Michelin Pilot Challenge during a gathering of IMSA stakeholders at Sebring International Raceway ahead of Saturday’s Mobil 1 Twelve Hours.

IMSA President John Doonan announces the 2025 IMSA WeatherTech and Michelin Pilot Challenge schedules. Motorsport Images

“On behalf of my teammates at IMSA, I am proud to be able to announce our schedule for 2025 at such an early date,” said Doonan. “This was made possible through a great spirit of collaboration with our promoter partners, and we are grateful to them for enabling us to make our 2025 plans known today. Putting next year’s schedule into everybody’s hands so soon allows fans, competitors and partners to get well ahead in planning for an amazing 2025 season, even with so much of our 2024 season still to come.”

The 2025 season will open with the 63rd Rolex 24 At Daytona on the weekend of Jan. 23-26, as confirmed in an announcement last week from Daytona International Speedway. The Rolex 24 again kicks off both the WeatherTech Championship and Michelin Endurance Cup calendar and will be preceded by the annual Roar Before the Rolex 24 on the prior weekend, Jan. 17-19.

From Daytona, the series shifts to Sebring International Raceway on March 12-15 for the 73rd Mobil 1 Twelve Hours of Sebring. Both the opening events will include all four WeatherTech Championship classes: GTP, LMP2, GTD PRO and GTD.

After the pair of Florida endurance races, the WeatherTech Championship will make its traditional trek west to the Acura Grand Prix of Long Beach, for its first sprint race featuring the GTP and GTD classes. GTD PRO rejoins for the next race, WeatherTech Raceway Laguna Seca in May.

Detroit, re-introduced for 2023, will return to the schedule for GTP and GTD PRO at the end of May. After a bit of a break for the 24 Hours of Le Mans, Watkins Glen International hosts the Sahlen’s Six Hours of The Glen the last weekend in June, with all four classes present. The next race at Canadian Tire Motorsports Park in July will feature LMP2 as the headliner in a three-class contest.

All four classes return to action on the weekend of July 31-Aug. 3 for the annual WeatherTech Championship visit to Road America in Elkhart Lake, Wis. VIRginia International Raceway will be the lone GT-only race on the 2025 schedule, followed by the six-hour Battle on the Bricks at Indianapolis Motor Speedway in September. The season concludes as usual with the final race of the championship and the Michelin Endurance Cup, the 10-hour Motul Petit Le Mans at Michelin Raceway Road Atlanta.

The 2025 IMSA Michelin Pilot Challenge schedule mirrors the WeatherTech Championship, minus the two races in conjunction with the NTT IndyCar Series, and the addition of its headlining race at Mid-Ohio in June.