The two-hour and 40-minute race on the 4.048-mile Road America circuit proved just how chaotic racing can get. The race practically began under the safety car after an LMP2 entry skidded off on the opening lap, and returned to caution 15 minutes later when another competitor left the track. Porsche Penske Motorsport pitted its two 680 hp hybrid 963 prototypes just 23 minutes into the race during the second yellow phase. After refueling, Matt Campbell and Felipe Nasr rejoined in 10th and 11th positions, respectively, held up by a slower GTP-class car.
When the safety car returned just over an hour in, the leading GTP cars made scheduled stops. Thanks to shorter refueling times, Mathieu Jaminet in the No. 6 Porsche emerged in the lead, while Nick Tandy in the No. 7 moved up to fourth. Tandy then passed the third-place car but made contact on the straight, spinning the Cadillac and earning a 60-second stop-plus-go penalty that dropped the No. 7 to 11th. The ensuing caution caught the sister Porsche off guard and allowed two BMW prototypes to assume the front. Jaminet, who rejoined fourth, battled back but ultimately finished fifth after duels in the closing laps.
With two races remaining in the IMSA WeatherTech SportsCar Championship, the No. 6 Porsche retains its championship lead. Urs Kuratle, director of factory motorsport LMDh, said the result was mixed but kept the title fight in the team’s own hands. The JDC-Miller MotorSports customer entry climbed early to fifth but slipped to 10th by the finish. In GT classes, Wright Motorsport’s Klaus Bachler and Laurin Heinrich took eighth in GTD-Pro after leading briefly, and Adam Adelson with Elliott Skeer secured sixth in GTD despite no radio contact.
Support series saw AR Motorsports finish sixth in the Michelin Pilot Challenge GS class, and Porsche Carrera Cup North America produced first career wins for Jimmy Llibre and Tyler Maxson, leaving Riley Dickinson two points clear in the standings.