Porsche secures top spots at WeatherTech Raceway Laguna Seca, continuing its winning streak in the IMSA Championship.

With Porsche back on top, AO Racing’s California magic intact, and Mercedes-AMG doubling down in GTD, Laguna Seca once again delivered a masterclass in green-flag strategy and edge-of-your-seat finishes.

Porsche Penske Motorsport remained unbeaten in the 2025 IMSA WeatherTech SportsCar championship season but with a twist at Laguna Seca Raceway. The No. 6 Porsche 963 earned its first Grand Touring Prototype victory this year as Mathieu Jaminet and Matt Campbell beat teammates Felipe Nasr and Nick Tandy in the No.