The final day of the 2025 Roar Before the 24 at Daytona International Speedway on Sunday, January 19, was significantly impacted by inclement weather. Heavy rain, strong winds, and lightning in the early morning forced IMSA officials to delay track activities for safety reasons. The opening IMSA WeatherTech SportsCar Championship session, originally scheduled for 9:45 a.m., was postponed, with the first cars not taking to the track until approximately 10:45 a.m., following a Michelin Pilot Challenge test session.

The intense downpour just before the session left the circuit waterlogged, creating treacherous conditions for drivers as they navigated the opening 15 minutes of running. Reduced grip levels and standing water forced teams to adopt a conservative approach, gradually acclimating to the unpredictable surface. As the track began to dry, lap times improved, allowing competitors to push the limits with greater confidence.

Despite the early disruptions, the day’s testing proceeded without further incident. Notably, privateer Porsche entries capitalized on the improving conditions, recording competitive lap times. The challenging weather provided teams with valuable experience in adapting to evolving track surfaces—an essential factor ahead of the Rolex 24 at Daytona.