IMSA has revealed the 2026 calender for the WeatherTech Sportscar Championship and the Michelin Pilot Challenge.

The WeatherTech Championship will return to all 11 venues where the series will race in 2025, and the Michelin Pilot Challenge will host its 10 rounds at the same 10 venues from the 2025 schedule.

The biggest change to the 2026 WeatherTech Championship schedule sees Road America joining the IMSA Michelin Endurance Cup. With new sponsorship from Motul, the August 2 race in Elkhart Lake, Wisconsin, will increase to a six-hour endurance race.

Meanwhile, the penultimate round of the season at Indianapolis Motor Speedway will be a two-hour and 40-minute sprint race, scheduled for September 20.

The Michelin Pilot Challenge schedule remains the same for 2026, including a four-hour headlining race at Mid-Ohio Sports Car Course in Lexington, Ohio, on June 7.

For more information, visit imsa.com.

See the full schedule for both series below: