Imsa Calendar 2025 Solar. Roar before the rolex 24. Race calendar for the 2025 imsa weathertech sportscar championship.

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. Imsa has confirmed the 2025 weathertech sportscar championship schedule, some five months ahead of its traditional release date.