Season results
Overall winner in bold.
† - The #8 B-K Motorsports entry failed to finish but completed enough laps to score points.
The 2005 American Le Mans Series season was the 35th season for the IMSA GT Championship, with it being the seventh under the American Le Mans Series moniker. It was a series for Le Mans Prototypes (LMP) and Grand Touring (GT) race cars divided into 4 classes: LMP1, LMP2, GT1, and GT2. It began March 19, 2005 and ended October 16, 2005 after 10 races.
The schedule change from 2004 to 2005 was minimal, with only one event being added to the existing schedule. The Grand Prix of Atlanta returned once more, once again shortly after the 12 Hours of Sebring.
| Rnd | Race | Circuit | Date |
|---|---|---|---|
| 1 | Mobil 1 12 Hours of Sebring | Sebring Raceway | March 19 |
| 2 | Sportsbook.com Grand Prix of Atlanta | Road Atlanta | April 17 |
| 3 | American Le Mans at Mid-Ohio | Mid-Ohio | May 22 |
| 4 | New England Grand Prix | Lime Rock Park | July 4 |
| 5 | Infineon Grand Prix of Sonoma | Infineon Raceway | July 17 |
| 6 | Portland Grand Prix | Portland International Raceway | July 30 |
| 7 | Generac 500 at Road America | Road America | August 21 |
| 8 | Grand Prix of Mosport | Mosport | September 4 |
| 9 | Petit Le Mans | Road Atlanta | October 1 |
| 10 | Monterey Sports Car Championships | Mazda Raceway Laguna Seca | October 16 |
| Sources: [1] [2] | |||
Overall winner in bold.
† - The #8 B-K Motorsports entry failed to finish but completed enough laps to score points.
Points are awarded to the top 10 finishers in the following order: [4]
Exceptions were for the 4 Hour Monterey Sports Car Championships was scored in the following order:
And for the 12 Hours of Sebring and Petit Le Mans which award the top 10 finishers in the following order:
Cars failing to complete 70% of the winner's distance are not awarded points. Teams only score the points of their highest finishing entry in each race.
| Pos | Team | Chassis | Engine | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Rd 10 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  ADT Champion Racing | Audi R8 | Audi 3.6L Turbo V8 | 26 | 20 | 13 | 20 | 20 | 20 | 20 | 16 | 26 | 19 | 200 |
| 2 | Dyson Racing | MG-Lola EX257 | MG (AER) XP20 2.0L Turbo I4 | 19 | 16 | 20 | 13 | 16 | 16 | 16 | 20 | 22 | 16 | 174 |
| 3 | Autocon Motorsports | Riley & Scott Mk III C | Élan 6L8 6.0L V8 | 10 | 10 | 16 | 9 | 45 | ||||||
| 4 |  Zytek Motorsports | Zytek 04S | Zytek ZG348 3.4L V8 | 10 | 23 | 33 |
| Pos | Team | Chassis | Engine | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Rd 10 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Intersport Racing | Lola B2K/40 Lola B05/40 | Judd KV675 3.4L V8 AER P07 2.0L Turbo I4 | 20 | 16 | 20 | 20 | 20 | 26 | 11 | 133 | |||
| 2 | Miracle Motorsports | Courage C65 | AER P07 2.0L Turbo I4 | 26 | 20 | 16 | 20 | 16 | 19 | 117 | ||||
| 3 | B-K Motorsports | Courage C65 | Mazda R20B 2.0L 3-rotor | 16 | 20 | 13 | 16 | 13 | 22 | 16 | 116 | |||
| 4 | Van der Steur Racing | Lola B2K/40 | AER P07 2.0L Turbo I4 | 13 | 16 | 16 | 13 | 58 | ||||||
| 5 | Penske Racing | Porsche RS Spyder | Porsche MR6 3.4L V8 | 23 | 23 | |||||||||
| 6 | BAT Competition | Lola B2K/40 | AER P14 3.0L V6 | 19 | 19 |
| Pos | Team | Chassis | Engine | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Rd 10 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Corvette Racing | Chevrolet Corvette C6.R | Chevrolet 7.0L V8 | 22 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 26 | 23 | 211 |
| 2 | ACEMCO Motorsports | Saleen S7R | Ford 7.0L V8 | 16 | 10 | 13 | 13 | 13 | 6 | 13 | 19 | 11 | 114 | |
| 3 | Carsport America | Dodge Viper GTS-R | Dodge 8.0L V10 | 10 | 6 | 6 | 8 | 8 | 10 | 8 | 10 | 9 | 75 | |
| 4 | Pacific Coast Motorsports | Chevrolet Corvette C5-R | Chevrolet 7.0L V8 | 12 | 8 | 10 | 8 | 6 | 13 | 8 | 65 | |||
| 5 | Aston Martin Racing | Aston Martin DBR9 | Aston Martin 6.0L V12 | 26 | 22 | 16 | 64 |
| Pos | Team | Chassis | Engine | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Rd 10 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Petersen/White Lightning | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 26 | 13 | 16 | 16 | 16 | 3 | 20 | 20 | 26 | 23 | 179 |
| 2 | Alex Job Racing | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 16 | 20 | 20 | 20 | 20 | 16 | 16 | 22 | 11 | 161 | |
| 3 | Flying Lizard Motorsports | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 19 | 10 | 6 | 13 | 10 | 13 | 13 | 10 | 19 | 13 | 126 |
| 4 | BAM! | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 4 | 8 | 2 | 13 | 16 | 10 | 13 | 14 | 16 | 96 | |
| 5 | J3 Racing | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 22 | 6 | 13 | 8 | 6 | 6 | 2 | 8 | 12 | 9 | 92 |
| 6 | Panoz Motor Sports | Panoz Esperante GT-LM | Ford (Elan) 5.0L V8 | 20 | 10 | 6 | 8 | 10 | 8 | 4 | 19 | 85 | ||
| 7 | The Racer's Group (TRG) | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 16 | 16 | |||||||||
| 8 | IN2 Racing | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | 14 | 14 | |||||||||
| 9 | ZIP Racing | Porsche 911 GT3-R | Porsche 3.6L Flat-6 | 12 | 12 |
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