The 2025 Chevrolet Detroit Sports Car Classic was a sports car race held at the Detroit street circuit in Detroit, Michigan, on May 31, 2025. It was the fifth round of the 2025 IMSA SportsCar Championship.
Background
[edit]Preview
[edit]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 tenth time the IMSA SCC hosted a race in Detroit, and the second consecutive time the race was hosted at the Detroit street circuit. The 2025 Detroit Sports Car Classic was the fifth of eleven scheduled sports car races of 2025 by IMSA.[2] The race was held at the ten-turn 1.645 mi (2.647 km) Detroit street circuit on May 31, 2025.[2]
Standings before the race
[edit]Prior to the race, Felipe Nasr and Nick Tandy led the GTP Drivers' Championship with 1490 points, 91 points ahead of Porsche team-mates Matt Campbell and Mathieu Jaminet. Philipp Eng and Dries Vanthoor sat in third, 280 points behind Nasr and Tandy.[3] The GTD Pro Drivers' Championship was led by Klaus Bachler and Laurin Heinrich with 1014 points, 70 points ahead of second-placed Antonio García and Alexander Sims.[3] Porsche Penske Motorsport and AO Racing led their respective Teams' Championships, with Porsche leading the Manufacturers' Championship in both the GTP and GTD Pro classes.[3]
Entry list
[edit]The entry list was published on May 21, 2025, and featured 22 entries: 11 in both GTP and GTD Pro.[4] Giacomo Altoè was originally listed to compete for DragonSpeed in the No. 81 entry, but was replaced last minute by Rasmus Lindh.[5]
Practice
[edit]There were three practice sessions preceding the start of the race on Saturday, two on Friday and one on Saturday. The first session lasted 90 minutes on Friday morning, the second session lasted 120 minutes on Friday afternoon. The final practice session lasted 20 minutes on Saturday morning.[8]
Practice 1
[edit]The first practice session took place at 8:00 am ET on Friday and ended with Jack Aitken topping the charts for Cadillac Whelen, with a lap time of 1:07.254, ahead of the No. 93 Acura of Renger van der Zande.[9] GTD Pro was topped by Alexander Sims with a time of 1:10.818, ahead of the sister Corvette Racing Chevrolet of Nicky Catsburg.[10] The session was stopped once when the No. 40 Cadillac Wayne Taylor Racing Cadillac and the No. 9 Pfaff Motorsports Lamborghini went off at turn 1.[11]
| Pos. | Class | No. | Team | Driver | Time | Gap |
|---|---|---|---|---|---|---|
| 1 | GTP | 31 |  Cadillac Whelen
|
 Jack Aitken
|
1:07.254 | — |
| 2 | GTP | 93 | Acura Meyer Shank Racing w/ Curb-Agajanian
|
 Renger van der Zande
|
1:07.605 | +0.351 |
| 3 | GTP | 7 |  Porsche Penske Motorsport
|
Nick Tandy
|
1:07.651 | +0.397 |
| Sources:[12][13] | ||||||
Practice 2
[edit]The second practice session took place at 11:30 pm ET on Friday and ended with Sheldon van der Linde topping the charts for BMW M Team RLL, with a lap time of 1:06.427. Nick Tandy in the No. 7 Porsche Penske Motorsport Porsche set the second fastest time of 1:06.720.[14] Antonio García led the way in GTD Pro with a time of 1:10.565 in the No. 3 Chevrolet followed closely by his teammate, Tommy Milner, in the No. 4 Chevrolet with a time of 1:10.575.[15] There were three red flags in the session, two for debris and one for an incident by the No. 10 Cadillac of Filipe Albuquerque.[16]
| Pos. | Class | No. | Team | Driver | Time | Gap |
|---|---|---|---|---|---|---|
| 1 | GTP | 25 | BMW M Team RLL
|
 Sheldon van der Linde
|
1:06.427 | — |
| 2 | GTP | 7 | Porsche Penske Motorsport
|
Nick Tandy
|
1:06.720 | +0.293 |
| 3 | GTP | 24 | BMW M Team RLL
|
 Dries Vanthoor
|
1:06.765 | +0.338 |
| Sources:[17][18] | ||||||
Practice 3
[edit]The third and final practice session took place at 10:35 pm ET on Saturday and ended with Nick Tandy in the No. 7 Porsche fastest of the session with a time of 1:08.552 followed by Dries Vanthoor in the No. 24 BMW M Team RLL BMW in second. Marco Mapelli, in the No. 9 Pfaff Motorsports Lamborghini led the way in GTD Pro with a lap time of 1:11.116.[19]
| Pos. | Class | No. | Team | Driver | Time | Gap |
|---|---|---|---|---|---|---|
| 1 | GTP | 7 | Porsche Penske Motorsport
|
Nick Tandy
|
1:08.552 | — |
| 2 | GTP | 24 | BMW M Team RLL
|
Dries Vanthoor
|
1:08.598 | +0.046 |
| 3 | GTP | 6 | Porsche Penske Motorsport
|
 Mathieu Jaminet
|
1:08.720 | +0.168 |
| Sources:[20][21] | ||||||
Qualifying
[edit]Friday's afternoon qualifying was broken into two sessions, with one session for both the GTP and GTD classes each.[22] 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 GTP cars ahead of the GTD cars.[23]
Qualifying results
[edit]Pole positions in each class are indicated in bold and with ‡.
Race
[edit]Post-race
[edit]Class winners are in bold and ‡.
Notes
[edit]- ^ The No. 14 Vasser Sullivan Racing Lexus had all its lap times disallowed due to failing post-qualifying technical inspection, with ground clearance below the minimum permitted by IMSA regulations.[24]
- ^ a b c The No. 4 Corvette Racing by Pratt Miller Motorsports Chevrolet, No. 25 BMW M Team RLL BMW, and No. 77 AO Racing Porsche received a 17-second time penalty post-race each for an unserved drive-through penalty.
References
[edit]- ^ O'Connell, RJ; Kilbey, Stephen (March 15, 2024). "IMSA Announces 2025 Calendar". Dailysportscar. Retrieved May 27, 2025.
- ^ a b "2024 IMSA Schedules Revealed at Road America". imsa.com. August 4, 2023. Retrieved May 27, 2025.
- ^ a b c "IMSA WeatherTech SportsCar Championship – Laguna Seca After Race – Championship Points Standings (Official)" (PDF). IMSA Alkamel. Alkamel Systems. May 16, 2025. Retrieved May 27, 2025.
- ^ "Chevrolet Sports Car Classic – Pre-Event Entry List" (PDF). IMSA. May 21, 2025. Retrieved May 27, 2025.
- ^ a b O'Connell, RJ (May 30, 2025). "Daytona LMP2 winner Lindh replaces Altoe at DragonSpeed". RACER. Retrieved May 30, 2025.
- ^ Dagys, John (May 21, 2025). "Second GTD Pro Lexus in 22-Car Entry for Detroit". Sportscar365. John Dagys Media. Retrieved May 27, 2025.
- ^ O'Connell, RJ (May 21, 2025). "22 Entries For Detroit Sports Car Classic". Dailysportscar. Retrieved May 27, 2025.
- ^ "Chevrolet Detroit Sports Car Classic – Official Schedule" (PDF). IMSA Alkamel. Alkamel Systems. May 21, 2025. Retrieved June 2, 2025.
- ^ Dagys, John (May 30, 2025). "Aitken Paces Opening Practice in Detroit". Sportscar365. John Dagys Media. Retrieved June 2, 2025.
- ^ O'Connell, R.J. (May 30, 2025). "Aitken puts Cadillac ahead in first Detroit GP practice". RACER. Retrieved June 2, 2025.
- ^ O'Connell, R.J. (May 30, 2025). "Aitken Leads First Practice In Detroit". Dailysportscar. Retrieved June 3, 2025.
- ^ "Practice 1 Results" (PDF). IMSA Alkamel. Alkamel Systems. May 30, 2025. Retrieved June 2, 2025.
- ^ "Practice 1 Results by Driver Fastest Lap" (PDF). IMSA Alkamel. Alkamel Systems. May 30, 2025. Retrieved June 2, 2025.
- ^ O'Connell, R.J. (May 30, 2025). "BMW Paces Pre-Qualifying Practice". Dailysportscar. Retrieved June 3, 2025.
- ^ Dagys, John (May 30, 2025). "Van der Linde Quickest in Second Detroit Practice". Sportscar365. John Dagys Media. Retrieved June 3, 2025.
- ^ O'Connell, R.J. (May 30, 2025). "BMW moves ahead with van der Linde in second Detroit GP practice". RACER. Retrieved June 3, 2025.
- ^ "Practice 2 Results" (PDF). IMSA Alkamel. Alkamel Systems. May 30, 2025. Retrieved June 2, 2025.
- ^ "Practice 2 Results by Driver Fastest Lap" (PDF). IMSA Alkamel. Alkamel Systems. May 30, 2025. Retrieved June 2, 2025.
- ^ Dagys, John (May 31, 2025). "Tandy Quickest in Final Detroit Practice". Sportscar365. John Dagys Media. Retrieved June 3, 2025.
- ^ "Practice 3 Results" (PDF). IMSA Alkamel. Alkamel Systems. May 31, 2025. Retrieved June 2, 2025.
- ^ "Practice 3 Results by Driver Fastest Lap" (PDF). IMSA Alkamel. Alkamel Systems. May 31, 2025. Retrieved June 2, 2025.
- ^ "Chevrolet Detroit Sports Car Classic – Official Schedule" (PDF). IMSA Alkamel. Alkamel Systems. May 21, 2025. Retrieved May 31, 2025.
- ^ "2025 IMSA Sporting Regulations & Series Supplementary Regulations" (PDF). IMSA. April 30, 2025. Retrieved May 31, 2025.
- ^ "IMSA Penalty Notice – TP-25-15" (PDF). IMSA Alkamel. Alkamel Systems. May 30, 2025. Retrieved May 31, 2025.
- ^ "Chevrolet Detroit Sports Car Classic – Qualifying Results" (PDF). IMSA Alkamel. Alkamel Systems. May 30, 2025. Retrieved May 31, 2025.
- ^ "Chevrolet Detroit Sports Car Classic – Race Official Starting Grid" (PDF). IMSA Alkamel. Alkamel Systems. May 31, 2025. Retrieved June 2, 2025.
- ^ "Chevrolet Detroit Sports Car Classic – Race Provisional Results (1 Hour 40 Minutes)" (PDF). IMSA Alkamel. Alkamel Systems. May 31, 2025. Retrieved June 1, 2025.