International Motor Sports Association (IMSA) president John Doonan confirmed the race was part of the 2025 IMSA SportsCar Championship (IMSA SCC) in March 2024.[1] It was the third consecutive year the IMSA SCC hosted a race at Indianapolis Motor Speedway. The 2025 IMSA Battle on the Bricks was the tenth of eleven scheduled sports car races of 2025 by IMSA.[1] The race was held at the fourteen-turn 2.439 mi (3.925 km) Indianapolis Motor Speedway road course on September 21, 2025.[1]
Saturday's afternoon qualifying was broken into four sessions, with one session for the GTP, LMP2, GTD Pro, and GTD classes each.[6] The rules dictated that all teams nominated a driver to qualify their cars, with the Pro-Am LMP2 class requiring a Bronze rated driver to qualify the car. The competitors' fastest lap times determined the starting order. The competitors' fastest lap times determined the starting order. IMSA then arranged the grid to put GTPs ahead of the LMP2, GTD Pro, and GTD cars.[7]
Qualifying results
Pole positions in each class are indicated in bold and with ‡.
1 The No. 60 MSR Acura was moved to the back of the GTP classification for failing to comply with bodywork tolerances.[10]
2 The No. 75 Mercedes-AMG was moved to the back of the GTD Pro classification for violating minimum ground clearance.[11]
Race
Post-race
The final results of GTP allowed Campbell and Jaminet to extend their advantage in the Drivers' Championship by 56 points over teammates Nasr and Tandy.[12] Cameron and Hyett's fifth-place finish allowed them to keep their advantage over Goldburg in the LMP2 Drivers' Championship.[12] The final results in GTD Pro meant García and Sims advantage in the GTD Pro Drivers' Championship was reduced by 35 points over second-place finisher Costa.[12] Ellis and Ward's fifth-place finish allowed them to keep their advantage over Stevenson in the GTD Drivers' Championship.[12] Porsche Penske Motorsport, AO Racing, Corvette Racing by Pratt Miller Motorsports, and Winward Racing continued to top their respective Teams' Championships. Porsche, Chevrolet, and Mercedes-AMG continued to their Manufacturers' Championship with 1 round remaining in the season.[12]
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