Imsa 2025 Schedule Rumors. It's the same slate of stuff, just with a week difference in when long. 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.

With just about a month until the 2025 imsa weathertech sportscar championship commences, another spectacular grid is set to partake in the roar before the rolex 24 test on. 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.