Porsche closed out the 2025 IMSA WeatherTech SportsCar Championship in spectacular fashion, securing six championship crowns and reaffirming its dominance in North American endurance racing.
At the season finale, Petit Le Mans at Road Atlanta, the two factory-entered Porsche 963 hybrid prototypes crossed the line in third and tenth, results that were more than enough to lock in the Manufacturers’ Championship once again. Former Porsche Juniors Matt Campbell (Australia) and Mathieu Jaminet (France) took home the Drivers’ Championship, while Porsche Penske Motorsport celebrated its second consecutive Team Championship title.
The Stuttgart marque also swept the board in the IMSA Michelin Endurance Cup, the special classification covering the five major endurance races. Felipe Nasr (Brazil) and Nick Tandy (UK) secured the Drivers’ title, with Porsche Penske Motorsport once again topping the Team standings—completing a perfect title sweep for the Porsche camp.
Drama and Determination at Petit Le Mans
Race day at Road Atlanta started with a challenge: factory driver Julien Andlauer was ruled out for medical reasons, forcing a last-minute lineup change. In true Porsche spirit, Laurens Vanthoor stepped up, pulling double duty and driving stints in both of the factory 963s.
Despite the setback, both teams executed flawlessly under the Georgia sun. With temperatures hovering around 25°C and tension building throughout the ten-hour endurance classic, the No. 7 Porsche 963 driven by Nasr and Tandy charged into the top three early on, while the No. 6 car of Campbell, Jaminet, and Vanthoor led for long stretches.
After a grueling ten hours, the pair finished third and tenth—not the win they wanted, but everything Porsche needed to seal the championships across the board.
Customer Teams: Courage and Heart
Customer team JDC-Miller MotorSports showed strong pace early on, with their bright yellow No. 85 Porsche 963 running as high as fourth before a series of setbacks dropped them to 12th at the flag.
In the GT ranks, fan-favourite AO Racing and their beloved “Skeleton Rexy”—a Halloween-themed Porsche 911 GT3 R—captured plenty of attention and briefly led the GTD Pro class. Sadly, contact with an LMP2 car ended their podium hopes. After repairs, Klaus Bachler, Laurin Heinrich, and Michael Christensen brought the car home in eighth.
Meanwhile, Wright Motorsports wrapped up the year with a solid sixth-place finish in the GTD category.
Voices from the Victory Lane
“I struggle to find the words – sweeping the title pool two years running is simply incredible,”
said Thomas Laudenbach, Vice President Porsche Motorsport.
“I’m immensely proud of everyone involved. Success like this doesn’t come often.”
“This championship reflects the dedication of everyone at Porsche Penske Motorsport,”
added Roger Penske, Founder and Chairman of the Penske Corporation.
“From back-to-back Daytona victories to ten podiums this year, it’s been an extraordinary effort by the entire team across Mooresville and Weissach.”
“Our car continues to be the most successful LMDh machine since the regulations began,”
noted Urs Kuratle, Director Factory Motorsport LMDh.
“Today’s race was tough, but once again, we made the most of it.”
Matt Campbell (Porsche 963 #6): “What a relief! We can now call ourselves champions of the 2025 IMSA WeatherTech SportsCar Championship – simply amazing! We’ve had a fantastic year. Many thanks to the team, to my friend and teammate Mathieu Jaminet, and to everyone working behind the scenes. It’s a perfect day for our entire crew.”
Mathieu Jaminet (Porsche 963 #6): “I’ve been chasing a success like this for over two years. In 2023 and 2024, I gave everything I had, but it just wasn’t enough for a championship title, which was frustrating. That makes winning it now feel even more special. Doing it alongside my mate Matt Campbell makes it even more memorable. Huge thanks to everyone who played a part in this achievement.”
Laurens Vanthoor (Porsche 963 #7): “It was exciting and stressful having to drive both cars in the race. I’d never driven the No. 6 before – and then I had to take over the Porsche while it was leading. My two teammates in the car were fighting for the crown, so I couldn’t afford to make any mistakes. Everything worked out perfectly: we secured all the titles, so it doesn’t get any better than this.”
Klaus Bachler (Porsche 911 GT3 R #77): “That was brutal for us. Just as we were entering the final third, an LMP2 car hit the side of our Porsche 911 GT3 R. Running across the grass caused significant damage to the rear of our car. The team managed to repair it, but our fight for the class win was over. We could have claimed a podium at least. We wanted to defend the title, but unfortunately it wasn’t possible, even though we gave it everything.”
Race results
GTP class:
1. Aitken/Bamber/Vesti (GBR/NZL/DNK), Cadillac #31, 436 laps
2. Gunn/de Angelis/Riberas (GBR/CDN/ESP), Aston Martin #23, + 5.182 seconds
3. Campbell/Jaminet/L. Vanthoor (AUS/FRA/BEL), Porsche 963 #6, + 12.745 seconds
10. Nasr/Tandy/L. Vanthoor (BRA/GBR/BEL), Porsche 963 #7, – 1 lap
12. Van der Helm/Jani/Esterson (NLD/CHE/USA), Porsche 963 #85, – 3 laps
GTD-Pro class:
1. Hesse/Harper/de Phillippi (DEU/GBR/USA), BMW #48, 406 laps
2. Milner/Catsburg/Varrone (USA/NLD/ARG), Corvette #4, – 1 lap
3. Garcia/Sims/Juncadella (ESP/GBR/ESP), Corvette #3, – 1 lap
8. Bachler/Heinrich/Christensen (AUT/DEU/DNK), Porsche 911 GT3 R #77, – 2 laps
GTD class:
1. Mann/Wadoux/Pier Guidi (USA/FRA/ITA), Ferrari #21, 405 laps
2. Triarsi/Koch/Calado (USA/USA/GBR), Ferrari #021, + 4.158 seconds
3. Hawksworth/Thompson/Montecalvo (GBR/CDN/USA), Lexus #12, + 31.682 seconds
6. Adelson/Skeer/Sargent (USA/USA/AUS), Porsche 911 GT3 R #120, – 1 lap
Full results and championship standings https://results.imsa.com.
Edited Porsche Factory Press Release
Pictures & Video courtesy Porsche AG
