International Motor Sports Association (IMSA) president John Doonan confirmed the race was part of the schedule of the 2025 IMSA SportsCar Championship (IMSA SCC) in March 2024.[1] It was the twelfth consecutive year the race is a part of the IMSA SCC. The 2025 Monterey SportsCar Championship was the fourth of eleventh scheduled sports car races of 2025 by IMSA.[2] The race was held at the eleven-turn 2.238mi (3.602km)WeatherTech Raceway Laguna Seca on May 11, 2025.[2]
There were two practice sessions preceding the start of the race on Sunday, one on Friday afternoon and one on Saturday morning. The first session lasted 90 minutes on Friday afternoon while the second session on Saturday morning lasted 90 minutes.[7]
Qualifying
Saturday's afternoon qualifying was broken into three sessions, with one session for the GTP, GTD Pro, and GTD classes each.[7] The rules dictated that all teams nominated a driver to qualify their cars. The competitors' fastest lap times determined the starting order. IMSA then arranged the grid to put GTPs ahead of the GTD Pro and GTD cars.[8]
Qualifying results
Pole positions in each class are indicated in bold and with ‡.
The final results kept Nasr and Tandy atop GTP Drivers' Championship with 1490 points, 91 ahead of race winners Campbell and Jaminet.[12] With 1014 points, Bachler and Heinrich's victory allowed them to take the lead of the GTD Pro Drivers' Championship.[12] Ellis and Ward's victory allowed them to extend their advantage in the Drivers' Championship to 124 points over second-place finishers Hawksworth and Thompson in the GTD Drivers' Championship.[12] Porsche Penske Motorsport and Winward Racing continued to top their respective Teams' Championships. Porsche continued to top the GTP Manufacturers' Championship, while Porsche and Mercedes-AMG they took the lead of the their respective Manufacturers' Championship. Porsche Penske Motorsport and Winward Racing kept their respective advantages in their Teams' Championships while AO Racing became the leader of the GTD Pro Teams' Championship with 7 rounds remaining in the season.[12]
↑ The No. 27 Heart of Racing Team Aston Martin had all its lap times deleted due to failing post-qualifying technical inspection, with ground clearance below the minimum permitted by IMSA regulations.[9]
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