2015 United SportsCar Championship
The 2015 IMSA Tudor United SportsCar Championship season was the second season of the International Motor Sports Association's Tudor United SportsCar Championship and last to be held under that name. It was also the 45th overall season of the IMSA GT championship tracing its lineage to the 1971 IMSA season. It began January 24 with the 24 Hours of Daytona. and ended on October 3 at Petit Le Mans.
Classes
The class structure remained largely unchanged from 2014.- Prototype
- Prototype Challenge
- GT Le Mans
- GT Daytona
Schedule
Race schedule
The 2015 schedule was released on August 10, 2014 and features twelve rounds. One major change to the rules for 2015 was a slight reduction of race time to fit television constraints. Two and three hour races, which were 15 minutes shorter than their times, will have their race times reduced five more minutes, so that they would be 1:40 and 2:40, respectively, instead of 1:45 and 2:45, as was the case in the previous years. The races set for 6, 10, 12, and 24 hours will remain at the respective lengths.Rnd | Race | Length | Classes | Circuit | Location | Date |
1 | Rolex 24 at Daytona | 24 hours | All | Daytona International Speedway | Daytona, Florida | January 24–25 |
2 | Mobil 1 Twelve Hours of Sebring | 12 hours | All | Sebring International Raceway | Sebring, Florida | March 21 |
3 | Tequila Patrón Sports Car Showcase | 1 hour 40 minutes | P, GTLM | Long Beach Street Circuit | Long Beach, California | April 18 |
4 | Continental Tire Monterey Grand Prix | 2 hours 40 minutes | All | Mazda Raceway Laguna Seca | Monterey, California | May 3 |
5 | Chevrolet Sports Car Classic | 1 hour 40 minutes | P, PC, GTD | The Raceway on Belle Isle | Detroit, Michigan | May 30 |
6 | Sahlen's Six Hours of The Glen | 6 hours | All | Watkins Glen International | Watkins Glen, New York | June 28 |
7 | Mobil 1 SportsCar Grand Prix | 2 hours 40 minutes | P, PC, GTLM | Canadian Tire Motorsport Park | Bowmanville, Ontario | July 12 |
8 | Northeast Grand Prix | 2 hours 40 minutes | PC, GTD | Lime Rock Park | Lakeville, Connecticut | July 25 |
9 | Continental Tire Road Race Showcase | 2 hours 40 minutes | All | Road America | Elkhart Lake, Wisconsin | August 9 |
10 | Oak Tree Grand Prix | 2 hours 40 minutes | GTLM, GTD | Virginia International Raceway | Alton, Virginia | August 23 |
11 | Lone Star Le Mans | 2 hours 40 minutes | All | Circuit of the Americas | Austin, Texas | September 19 |
12 | Petit Le Mans powered by Mazda | 10 hours | All | Road Atlanta | Braselton, Georgia | October 3 |
Calendar changes
- The events at Kansas Speedway and Indianapolis Motor Speedway have been discontinued.
- A round at Lime Rock Park was added for PC and GTD.
- The round at Canadian Tire Motorsports Park will see PC replace GTD alongside P and GTLM.
- The IMSA Continental Tire Sports Car Challenge support series follows the same schedule as above in 2015 except for the street circuits of Long Beach and Detroit Belle Isle for a ten-round season.
- On October 31, 2014, the calendar was modified removing PC from the Virginia International Raceway round and adding the class to the round at Detroit Belle Isle alongside P and GTD.
- The Monterey round would feature all four classes in a single event.
Entries
Prototype
Team | Chassis | Engine | Drivers | Rounds | |
![]() | DeltaWing DWC13 | Élan 1.9 L I4 Turbo | 0 | ![]() | 1–4, 6–7, 9, 11–12 |
![]() | DeltaWing DWC13 | Élan 1.9 L I4 Turbo | 0 | ![]() | 1–4, 6–7, 9, 11–12 |
![]() | DeltaWing DWC13 | Élan 1.9 L I4 Turbo | 0 | ![]() | 1–2, 12 |
![]() | DeltaWing DWC13 | Élan 1.9 L I4 Turbo | 0 | ![]() | 1 |
![]() | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 1 | ![]() | 1–2 |
![]() | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 1 | ![]() | 1–2 |
![]() | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 1 | ![]() | 1–2 |
![]() | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 2 | ![]() | 1–2 |
![]() | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 2 | ![]() | 1–2 |
![]() | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 2 | ![]() | 1–2 |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 5 | ![]() | All |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 5 | ![]() | All |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 5 | ![]() | 1–2, 12 |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 5 | ![]() | 6 |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 31 | ![]() | All |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 31 | ![]() | All |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 31 | ![]() | 1–2, 6, 12 |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 31 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 7 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 7 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 7 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 7 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 7 | ![]() | 1 |
![]() | Dallara Corvette DP | Chevrolet 5.5L V8 | 10 | ![]() | All |
![]() | Dallara Corvette DP | Chevrolet 5.5L V8 | 10 | ![]() | All |
![]() | Dallara Corvette DP | Chevrolet 5.5L V8 | 10 | ![]() | 1–2, 6, 12 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 50 | ![]() | 1–2 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 50 | ![]() | 1–2 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 50 | ![]() | 1–2 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 50 | ![]() | 1–2 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 50 | ![]() | 1 |
![]() | Ligier JS P2 | Judd HK 3.6 L V8 | 57 | ![]() | 1–2 |
![]() | Ligier JS P2 | Judd HK 3.6 L V8 | 57 | ![]() | 1–2 |
![]() | Ligier JS P2 | Judd HK 3.6 L V8 | 57 | ![]() | 1–2 |
![]() | Ligier JS P2 | Judd HK 3.6 L V8 | 57 | ![]() | 1 |
![]() | Ligier JS P2 | Honda HR28TT 2.8 L V6 Turbo | 60 | ![]() | All |
![]() | Ligier JS P2 | Honda HR28TT 2.8 L V6 Turbo | 60 | ![]() | All |
![]() | Ligier JS P2 | Honda HR28TT 2.8 L V6 Turbo | 60 | ![]() | 1, 12 |
![]() | Ligier JS P2 | Honda HR28TT 2.8 L V6 Turbo | 60 | ![]() | 1 |
![]() | Ligier JS P2 | Honda HR28TT 2.8 L V6 Turbo | 60 | ![]() | 2 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 66 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 66 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 66 | ![]() | 1 |
![]() | Riley Mk XXVI DP | Dinan 5.0 L V8 | 66 | ![]() | 1 |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 70 | ![]() | 1–4, 11–12 |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 70 | ![]() | 1–4, 11–12 |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 70 | ![]() | 1–2, 12 |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 70 | ![]() | 1 |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 07 | ![]() | All |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 07 | ![]() | All |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 07 | ![]() | 1–2, 6 |
![]() | Mazda Prototype | Mazda 2.2 L SKYACTIV-D I4 Turbo | 07 | ![]() | 1–2 |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 90 | ![]() | All |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 90 | ![]() | All |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 90 | ![]() | 1–2, 12 |
![]() | Coyote Corvette DP | Chevrolet 5.5L V8 | 90 | ![]() | 1 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 01 | ![]() | All |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 01 | ![]() | All |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 01 | ![]() | 1 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 01 | ![]() | 1 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 01 | ![]() | 2, 12 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 02 | ![]() | 1 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 02 | ![]() | 1 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 02 | ![]() | 1 |
![]() | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 02 | ![]() | 1 |
Prototype Challenge
All entries use an Oreca FLM09 chassis powered by a Chevrolet LS3 6.2 L V8.Team | Drivers | Rounds | |
![]() | 8 | ![]() | All |
![]() | 8 | ![]() | 1–2, 4–5, 7–9, 12 |
![]() | 8 | ![]() | 1–2, 6, 12 |
![]() | 8 | ![]() | 1, 6, 11–12 |
![]() | 8 | ![]() | 1 |
![]() | 88 | ![]() | 11–12 |
![]() | 88 | ![]() | 11–12 |
![]() | 88 | ![]() | 12 |
![]() | 11 | ![]() | All |
![]() | 11 | ![]() | All |
![]() | 11 | ![]() | 1–2, 12 |
![]() | 11 | ![]() | 1, 12 |
![]() | 16 | ![]() | 1–2, 12 |
![]() | 16 | ![]() | 1–2, 6 |
![]() | 16 | ![]() | 1, 12 |
![]() | 16 | ![]() | 1 |
![]() | 16 | ![]() | 1 |
![]() | 16 | ![]() | 2, 12 |
![]() | 16 | ![]() | 2 |
![]() | 16 | ![]() | 4, 7, 11 |
![]() | 16 | ![]() | 4, 8, 11 |
![]() | 16 | ![]() | 6, 9 |
![]() | 16 | ![]() | 6, 9 |
![]() | 16 | ![]() | 7–8 |
![]() | 16 | ![]() | 12 |
![]() | 61 | ![]() | 1 |
![]() | 61 | ![]() | 1 |
![]() | 61 | ![]() | 1 |
![]() | 61 | ![]() | 1 |
![]() | 61 | ![]() | 1 |
![]() | 61 | ![]() | 11 |
![]() | 61 | ![]() | 11 |
![]() | 38 | ![]() | All |
![]() | 38 | ![]() | 1–2, 6, 12 |
![]() | 38 | ![]() | 1, 5 |
![]() | 38 | ![]() | 1 |
![]() | 38 | ![]() | 2, 6–9, 11–12 |
![]() | 38 | ![]() | 4 |
![]() | 52 | ![]() | All |
![]() | 52 | ![]() | All |
![]() | 52 | ![]() | 1–2, 6, 12 |
![]() | 52 | ![]() | 1 |
![]() | 54 | ![]() | All |
![]() | 54 | ![]() | All |
![]() | 54 | ![]() | 1–2, 6 |
![]() | 54 | ![]() | 1 |
![]() | 54 | ![]() | 12 |
![]() | 85 | ![]() | All |
![]() | 85 | ![]() | 1–2, 6, 9, 12 |
![]() | 85 | ![]() | 1–2, 6, 12 |
![]() | 85 | ![]() | 1, 5, 8 |
![]() | 85 | ![]() | 1 |
![]() | 85 | ![]() | 2 |
![]() | 85 | ![]() | 4 |
![]() | 85 | ![]() | 7, 11 |
GT Le Mans
Team | Chassis | Engine | Drivers | Rounds | |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 3 | ![]() | All |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 3 | ![]() | All |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 3 | ![]() | 1–2, 12 |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 4 | ![]() | All |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 4 | ![]() | All |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 4 | ![]() | 1–2 |
![]() | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | 4 | ![]() | 12 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 17 | ![]() | All |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 17 | ![]() | All |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 17 | ![]() | 1–2, 12 |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 24 | ![]() | All |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 24 | ![]() | All |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 24 | ![]() | 1–2, 12 |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 24 | ![]() | 1 |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 25 | ![]() | All |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 25 | ![]() | All |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 25 | ![]() | 1–2, 12 |
![]() | BMW Z4 GTE | BMW 4.4 L V8 | 25 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 51 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 51 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 51 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 51 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 62 | ![]() | All |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 62 | ![]() | All |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 62 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 62 | ![]() | 1 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 62 | ![]() | 2 |
![]() | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | 62 | ![]() | 12 |
![]() | Aston Martin Vantage GTE | Aston Martin 4.5 L V8 | 98 | ![]() | 1–2 |
![]() | Aston Martin Vantage GTE | Aston Martin 4.5 L V8 | 98 | ![]() | 1–2 |
![]() | Aston Martin Vantage GTE | Aston Martin 4.5 L V8 | 98 | ![]() | 1–2 |
![]() | Aston Martin Vantage GTE | Aston Martin 4.5 L V8 | 98 | ![]() | 1–2 |
![]() | Aston Martin Vantage GTE | Aston Martin 4.5 L V8 | 98 | ![]() | 1 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | All |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | 1–2, 6–7, 9–12 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | 1, 4 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | 1 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | 2, 6 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | 2, 12 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | ![]() | 3 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | ![]() | All |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | ![]() | 1–2, 6–7, 9–12 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | ![]() | 1–2, 12 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | ![]() | 1, 4 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | ![]() | 2, 6 |
![]() | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | ![]() | 3 |
GT Daytona
Team | Chassis | Engine | Drivers | Rounds | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 18 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 18 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 18 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 18 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 18 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 19 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 19 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 19 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 19 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Porsche 911 GT America | Porsche 4.0L Flat-6 | 19 | ![]() | 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ResultsBold indicates overall winner.Championship standingsPoints SystemsChampionship points are awarded in each class at the finish of each event. Points are awarded based on finishing positions as shown in the chart below.
Drivers PointsPoints are awarded in each class at the finish of each event. Drivers must complete a minimum driving time in order to score points. A driver does not score points if the minimum drive time is not met.In addition, for each car credited with a race start, each driver nominated in that car also receives one additional “starting point.” Team PointsTeam points are calculated in exactly the same way as driver points, using the point distribution chart and “starting points.” Each car entered is considered its own “team” regardless if it is a single entry or part of a two-car team.Manufacturer PointsThere are also a number of manufacturer championships which utilize the same season-long point distribution chart, minus the “starting points” used for the driver and team championships. The manufacturer championships recognized by IMSA are as follows:Each manufacturer receives finishing points for its highest finishing car in each class. The positions of subsequent finishing cars from the same manufacturer are not taken into consideration, and all other manufacturers move up in the order. The points system from the 2014 season is the same as in 2015. North American Endurance CupThe points system for the North American Endurance Cup is different from the normal points system. Points are awarded on a 5-4-3-2 basis for drivers, teams and manufacturers. The first finishing position at each interval earns five points, four points for second position, three points for third, with two points awarded for fourth and each subsequent finishing position.
At Daytona, points are awarded at six hours, 12 hours, 18 hours and at the finish. At the Sebring, points are awarded at four hours, eight hours and at the finish. At Watkins Glen, points are awarded at three hours and at the finish. At Road Atlanta, points are awarded at four hours, eight hours and at the finish. Like the season-long team championship, North American Endurance Cup team points are awarded for each car and drivers get points in any car that they drive, in which they are entered for points. The manufacturer points go to the highest placed car from that manufacturer, just like the season-long manufacturer championship. Drivers' ChampionshipsPrototype;Notes:
GT Daytona;Notes:
Prototype;Notes:
GT Daytona;Notes:
PrototypeGT Le MansGT Daytona;Notes:
GT Le Mans |