Imsa 2025 Race Schedule. Imsa has confirmed the 2025 weathertech sportscar championship schedule, some five months ahead of its traditional release date, featuring an unchanged calendar to this year. The michelin pilot challenge again will feature a 10.

Dxdt racing’s schedule of races for the 2025 imsa weathertech sportscar championship series. 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.