2015 United SportsCar Championship explained
The 2015 United SportsCar Championship (known for sponsorship reasons as the 2015 Tudor United SportsCar Championship) was the second season of the International Motor Sports Association's United SportsCar Championship and the 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 on January 24 with the 24 Hours of Daytona.[1] and ended on October 3 at Petit Le Mans.
Classes
The class structure remained largely unchanged from 2014.
2015 will see the introduction of two awards for the top-finishing Pro-Am drivers in Prototype (P) and GT Le Mans (GTLM). The Jim Trueman Award will be given to the top finishing Pro-Am pairing in Prototype, while the Bob Akin Award will be given to the top GTLM pairing. The top Pro-Am pairings from these classes at the end of the year will be given automatic entries to the 2016 24 Hours of Le Mans, with the Trueman award winner eligible for the LMP2 class, while the Akin Award winner would be for the LM GTE Am class. To be eligible for these awards, the drivers must at a minimum contest the North American Endurance Cup events.[2] [3]
Schedule
Race schedule
The 2015 schedule was released on August 10, 2014 and featured twelve rounds.[4] 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 |
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1 | Rolex 24 at Daytona | 24 hours | All | Daytona International Speedway | Daytona, Florida | January 24–25 |
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2 | Mobil 1 Twelve Hours of Sebring | 12 hours | All | Sebring International Raceway | Sebring, Florida | March 21 |
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3 | Tequila Patrón Sports Car Showcase | 1 hour 40 minutes | P, GTLM | Long Beach Street Circuit | Long Beach, California | April 18 |
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4 | Continental Tire Monterey Grand Prix | 2 hours 40 minutes[5] | All | Mazda Raceway Laguna Seca | Monterey, California | | May 3 |
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5 | Chevrolet Sports Car Classic | 1 hour 40 minutes | P, PC, GTD | The Raceway on Belle Isle | Detroit, Michigan | May 30 |
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6 | Sahlen's Six Hours of The Glen | 6 hours | All | Watkins Glen International | Watkins Glen, New York | June 28 |
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7 | Mobil 1 SportsCar Grand Prix | 2 hours 40 minutes[6] | P, PC, GTLM | Canadian Tire Motorsport Park | Bowmanville, Ontario | July 12 |
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8 | Northeast Grand Prix | 2 hours 40 minutes | PC, GTD | Lime Rock Park | Lakeville, Connecticut | July 25 |
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9 | Continental Tire Road Race Showcase | 2 hours 40 minutes | All | Road America | Elkhart Lake, Wisconsin | August 9 |
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10 | Oak Tree Grand Prix | 2 hours 40 minutes | GTLM, GTD | Virginia International Raceway | Alton, Virginia | August 23 |
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11 | Lone Star Le Mans | 2 hours 40 minutes | All | Circuit of the Americas | Austin, Texas | September 19 |
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12 | Petit Le Mans powered by Mazda | 10 hours[7] [8] [9] | All | Road Atlanta | Braselton, Georgia | October 3 | |
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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.[10]
- The Monterey round would feature all four classes in a single event.[11]
Entries
Prototype
Team | Chassis | Engine | | Drivers | Rounds |
---|
DeltaWing Racing Cars with Claro/TracFone | DeltaWing DWC13 | Élan (Mazda) 1.9 L I4 Turbo | 0 | Katherine Legge | 1–4, 6–7, 9, 11–12 |
Memo Rojas | 1–4, 6–7, 9, 11–12 |
Andy Meyrick | 1–2, 12 |
Gabby Chaves | 1 |
Tequila Patrón ESM[12] | HPD ARX-04b HPD ARX-03b | Honda HR28TT 2.8 L V6 Turbo | 1 | Scott Sharp | 1–2 |
Ryan Dalziel | 1–2 |
David Heinemeier Hansson | 1–2 |
2 | Ed Brown | 1–2 |
Jon Fogarty | 1–2 |
Johannes van Overbeek | 1–2 |
Action Express Racing[13] [14] | Coyote Corvette DP | Chevrolet 5.5L V8 | 5 | João Barbosa | All |
Christian Fittipaldi | All |
Sébastien Bourdais[15] | 1–2, 12 |
Max Papis | 6 |
31 | Dane Cameron | All |
Eric Curran | All |
Max Papis[16] | 1–2, 6, 12 |
Phil Keen | 1 |
Starworks Motorsport | Riley Mk XXVI DP | Dinan (BMW) 5.0 L V8 | 7 | Rubens Barrichello | 1 |
Tor Graves | 1 |
Brendon Hartley | 1 |
Ryan Hunter-Reay | 1 |
Scott Mayer | 1 |
Wayne Taylor Racing | Dallara Corvette DP | Chevrolet 5.5L V8 | 10 | Jordan Taylor | All |
Ricky Taylor | All |
Max Angelelli | 1–2, 6, 12 |
Fifty Plus Racing (Highway to Help) | Riley Mk XXVI DP | Dinan (BMW) 5.0 L V8 | 50 | Byron DeFoor | 1–2 |
David Hinton | 1–2 |
Jim Pace | 1–2 |
Dorsey Schroeder | 1–2 |
Doug Smith | 1 |
Krohn Racing | Ligier JS P2 | Judd HK 3.6 L V8 | 57 | Tracy Krohn | 1–2 |
Niclas Jönsson | 1–2 |
Olivier Pla | 1–2 |
Alex Brundle | 1 |
Michael Shank Racing with Curb/Agajanian[17] | Ligier JS P2 | Honda HR28TT 2.8 L V6 Turbo | 60 | Oswaldo Negri Jr. | All |
John Pew | All |
Matt McMurry | 1, 12 |
A. J. Allmendinger | 1 |
Justin Wilson | 2 |
RG Racing[18] | Riley Mk XXVI DP | Dinan (BMW) 5.0 L V8 | 66 | David Cheng | 1 |
Robert Gewirtz | 1 |
Mark Kvamme | 1 |
Shane Lewis | 1 |
SpeedSource[19] | Lola B12/80 Mazda | Mazda 2.2 L SKYACTIV-D (SH-VPTS) I4 Turbo (diesel) | 70 | Jonathan Bomarito | 1–4, 11–12 |
Tristan Nunez | 1–4, 11–12 |
Sylvain Tremblay | 1–2, 12 |
James Hinchcliffe | 1 |
07 | Tom Long | All |
Joel Miller | All |
Ben Devlin | 1–2, 6 |
Sylvain Tremblay | 1–2 |
VisitFlorida.com Racing | Coyote Corvette DP | Chevrolet 5.5L V8 | 90 | Michael Valiante | All |
Richard Westbrook | All |
Mike Rockenfeller | 1–2, 12 |
Guy Cosmo | 1 |
Chip Ganassi Racing[20] | Ford EcoBoost Riley DP | Ford Ecoboost 3.5 L V6 Turbo | 01 | Joey Hand | All |
Scott Pruett | All |
Sage Karam[21] | 1 |
Charlie Kimball | 1 |
Scott Dixon | 2, 12 |
02 | Scott Dixon | 1 |
Tony Kanaan | 1 |
Kyle Larson | 1 |
Jamie McMurray | 1 | |
Prototype Challenge
All entries use an Oreca FLM09 chassis powered by a Chevrolet LS3 6.2 L V8.
Team | | Drivers | Rounds |
---|
Starworks Motorsport[22] | 8 | Renger van der Zande | All |
Mirco Schultis | 1–2, 4–5, 7–9, 12 |
Alex Popow | 1–2, 6, 12 |
Mike Hedlund | 1, 6, 11–12 |
Filipe Albuquerque | 1 |
88 | Alex Popow | 11–12 |
Sean Rayhall | 11–12 |
John Falb | 12 |
RSR Racing[23] | 11 | Chris Cumming | All |
Bruno Junqueira | All |
Gustavo Menezes | 1–2, 12 |
Jack Hawksworth | 1, 12 |
BAR1 Motorsports[24] | 16 | Tomy Drissi | 1–2, 12 |
Martin Plowman | 1–2, 6 |
Johnny Mowlem | 1, 12 |
Brian Alder | 1 |
Tom Papadopoulos | 1 |
Marc Drumwright | 2, 12 |
David Cheng | 2 |
John Falb | 4, 7, 11 |
Todd Slusher | 4, 8, 11 |
Daniel Burkett | 6, 9 |
Matt McMurry | 6, 9 |
Sean Rayhall | 7–8 |
Don Yount | 12 |
61 | Shelby Blackstock | 1 |
Ivo Breukers | 1 |
Marc Drumwright | 1 |
Martin Plowman | 1 |
Remo Ruscitti | 1 |
Ryan Lewis | 11 |
Don Yount | 11 |
Performance Tech Motorsports | 38 | James French | All |
Jerome Mee | 1–2, 6, 12 |
James Vance | 1, 5 |
Sean Johnston | 1 |
Conor Daly | 2, 6–9, 11–12 |
Mike Hedlund | 4 |
PR1/Mathiasen Motorsports | 52 | Mike Guasch | All |
Tom Kimber-Smith | All |
Andrew Palmer | 1–2, 6, 12 |
Andrew Novich | 1 |
CORE Autosport | 54 | Jon Bennett | All |
Colin Braun | All |
James Gue | 1–2, 6 |
Mark Wilkins | 1 |
Anthony Lazzaro | 12 |
JDC-Miller MotorSports | 85 | Mikhail Goikhberg | All |
Chris Miller | 1–2, 6, 9, 12 |
Rusty Mitchell | 1–2, 6, 12 |
Stephen Simpson | 1, 5, 8 |
Tristan Vautier | 1 |
Gerry Kraut | 2 |
Zach Veach | 4 |
Matt McMurry | 7, 11 | |
GT Le Mans
Team | Chassis | Engine | Tyres | | Drivers | Rounds |
---|
Corvette Racing | Chevrolet Corvette C7.R | Chevrolet 5.5 L V8 | | 3 | Antonio García | All |
Jan Magnussen | All |
Ryan Briscoe | 1–2, 12 |
4 | Oliver Gavin | All |
Tommy Milner | All |
Simon Pagenaud | 1–2 |
Ryan Briscoe | 12 |
Team Falken Tire | Porsche 911 RSR | Porsche 4.0 L Flat-6 | | 17 | Wolf Henzler | All |
Bryan Sellers | All |
Patrick Long | 1–2, 12 |
BMW Team RLL[25] | BMW Z4 GTE | BMW 4.4 L V8 | | 24 | John Edwards | All |
Lucas Luhr | All |
Jens Klingmann | 1–2, 12 |
Graham Rahal | 1 |
25 | Bill Auberlen | All |
Dirk Werner | All |
Augusto Farfus | 1–2, 12 |
Bruno Spengler | 1 |
AF Corse | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | | 51 | Gianmaria Bruni | 1 |
Emmanuel Collard | 1 |
François Perrodo | 1 |
Toni Vilander | 1 |
Risi Competizione | Ferrari 458 Italia GT2 | Ferrari F142 4.5 L V8 | | 62 | Giancarlo Fisichella | All |
Pierre Kaffer | All |
Olivier Beretta | 1 |
Davide Rigon | 1 |
Andrea Bertolini | 2 |
Toni Vilander | 12 |
Aston Martin Racing[26] | Aston Martin Vantage GTE | Aston Martin 4.5 L V8 | | 98 | Paul Dalla Lana | 1–2 |
Pedro Lamy | 1–2 |
Mathias Lauda | 1–2 |
Darren Turner | 1–2 |
Stefan Mücke | 1 |
Porsche North America[27] | Porsche 911 RSR | Porsche 4.0 L Flat-6 | | 911 | Patrick Pilet | All |
Nick Tandy | 1–2, 6–7, 9–12 |
Michael Christensen | 1, 4 |
Marc Lieb | 1 |
Earl Bamber | 2, 6 |
Richard Lietz | 2, 12 |
Frédéric Makowiecki | 3 |
912 | Jörg Bergmeister | All |
Earl Bamber | 1–2, 6–7, 9–12 |
Frédéric Makowiecki | 1–2, 12 |
Michael Christensen | 1, 4 |
Nick Tandy | 2, 6 |
Richard Lietz | 3 | |
GT Daytona
Team | Chassis | Engine | | Drivers | Rounds |
---|
Mühlner Motorsports America | Porsche 911 GT America | Porsche 4.0 L Flat-6 | 18 | Marc Basseng | 1 |
Matteo Beretta | 1 |
Connor De Phillippi | 1 |
Nikolaus Mayr-Melnhof | 1 |
Darryl O'Young | 1 |
19 | Connor De Phillippi | 1 |
Ricardo Flores Jr. | 1 |
Michael Lira | 1 |
Nikolaus Mayr-Melnhof | 1 |
Jim Michaelian | 1 |
| Porsche 911 GT America | Porsche 4.0 L Flat-6 | 22 | Leh Keen | All |
Cooper MacNeil | All |
Andrew Davis | 1–2, 6, 12 |
Shane van Gisbergen | 1 |
23 | Mario Farnbacher | All |
Ian James | All |
Alex Riberas | 1–2, 12 |
Konrad Motorsport | Porsche 911 GT America | Porsche 4.0 L Flat-6 | 28 | Klaus Bachler | 1 |
Christian Engelhart | 1 |
Rolf Ineichen | 1 |
Lance Willsey | 1 |
Christopher Zöchling | 1 |
Riley Motorsports | Dodge Viper GT3-R | Dodge 8.3 L V10 | 33 | Jeroen Bleekemolen | All |
Ben Keating | All |
Sebastiaan Bleekemolen | 1–2, 12 |
Al Carter | 1 |
Marc Goossens | 1 |
93 | Al Carter | 1–2, 6, 12 |
Cameron Lawrence | 1–2, 6, 12 |
Ben Keating | 1–2 |
Dominik Farnbacher | 1 |
Kuno Wittmer | 1 |
Marc Goossens | 2, 6, 12 |
Marc Miller | 4 |
Jeff Mosing | 4 |
Magnus Racing | Porsche 911 GT America | Porsche 4.0 L Flat-6 | 44 | Andy Lally | All |
John Potter | All |
Marco Seefried | 1–2, 6 |
Martin Ragginger | 1 |
Robert Renauer | 12 |
Flying Lizard Motorsports[30] | Audi R8 LMS ultra | Audi 5.2 L V10 | 45 | Robert Thorne | 1–2, 12 |
Tomonobu Fujii | 1 |
Satoshi Hoshino | 1 |
Markus Winkelhock | 1 |
Colin Thompson | 2, 12 |
Marco Holzer | 2 |
Guy Cosmo | 4, 12 |
Patrick Byrne | 4 |
Jason Hart | 11 |
Mike Vess | 11 |
Paul Miller Racing[31] | Audi R8 LMS ultra | Audi 5.2 L V10 | 48 | Christopher Haase | All |
Dion von Moltke | All |
Bryce Miller | 1–2, 6, 12 |
René Rast | 1 |
AF Corse | Ferrari 458 Italia GT3 | Ferrari 4.5 L V8 | 49 | Rui Águas | 1–2 |
Matt Griffin | 1 |
Pasin Lathouras | 1 |
Michele Rugolo | 1 |
Marco Cioci | 2 |
Piergiuseppe Perazzini | 2 |
Enzo Potolicchio | 2 |
Wright Motorsports | Porsche 911 GT America | Porsche 4.0L Flat-6 | 58 | Jan Heylen | 1–2, 5–6 |
Madison Snow | 1–2, 5–6 |
Patrick Dempsey | 1 |
Philipp Eng | 1 |
Emilio Valverde | 2 |
Scuderia Corsa[32] | Ferrari 458 Italia GT3 | Ferrari 4.5 L V8 | 63 | Townsend Bell | All |
Bill Sweedler | All |
Anthony Lazzaro | 1–2 |
Jeff Segal | 1, 12 |
Jeff Westphal | 1 |
64 | Daniel Serra | 1, 12 |
Andrea Bertolini | 1 |
Marcos Gomes | 1 |
Francisco Longo | 1 |
Matteo Cressoni | 12 |
Jeff Westphal | 12 |
Park Place Motorsports | Porsche 911 GT America | Porsche 4.0 L Flat-6 | 73 | Patrick Lindsey | All |
Spencer Pumpelly | All |
Jim Norman | 1–2 |
Nelson Canache Jr. | 1 |
Kévin Estre | 1 |
Madison Snow | 12 |
Compass360 Racing[33] | Audi R8 LMS ultra | Audi 5.2 L V10 | 76 | Pierre Kleinubing | 8–11 |
Ray Mason | 8–11 |
Lone Star Racing[34] | Dodge Viper GT3-R | Dodge 8.3 L V10 | 80 | Marc Goossens | 11 |
Dan Knox | 11 |
GB Autosport | Porsche 911 GT America | Porsche 4.0 L Flat-6 | 81 | Michael Avenatti | 1–2 |
Damien Faulkner | 1–2 |
Kuba Giermaziak | 1–2 |
Mike Skeen | 1–2 |
Rory Butcher | 1 |
Turner Motorsport[35] | BMW Z4 GT3 | BMW 4.4 L V8 | 97 | Michael Marsal | All |
Markus Palttala | 1–2, 4–6, 9–12 |
Andy Priaulx | 1–2, 12 |
Boris Said | 1–2 |
Dane Cameron | 8 |
Billy Johnson | 12 |
TRG-AMR North America[36] | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 007 | Christina Nielsen | All |
James Davison | 1–2, 4–5 |
Brandon Davis | 1–2, 12 |
Christoffer Nygaard | 1 |
Kuno Wittmer | 6, 8–12 |
009 | Brandon Davis | 1 |
Derek DeBoer | 1 |
Max Riddle | 1 |
Eliseo Salazar | 1 |
Kris Wilson | 1 | |
Results
Bold indicates overall winner.
Championship standings
Points Systems
Championship 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.[37]
Drivers Points
Points are awarded in each class at the finish of each event. Drivers must complete a minimum driving time (outlined to teams prior to each event) in order to score points. A driver does not score points if the minimum drive time is not met.[37]
In addition, for each car credited with a race start, each driver nominated in that car also receives one additional “starting point.”[37]
Team Points
Team 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.[37]
Manufacturer Points
There 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 “starting point” is not used in manufacturer championship points.) The manufacturer championships recognized by IMSA are as follows:[37]
Prototype (P): Engine Manufacturer
GT Le Mans (GTLM): Car Manufacturer; Tire Manufacturer
GT Daytona (GTD): Car Manufacturer
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.[37]
Example: Manufacturer A finishes 1st and 2nd at an event, and Manufacturer B finishes 3rd. Manufacturer A receives 35 first-place points while Manufacturer B would earn 32 second-place points.[37]
The points system from the 2014 season is the same as in 2015.[38]
North American Endurance Cup
The 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.[37]
At Daytona (24 hour race), points are awarded at six hours, 12 hours, 18 hours and at the finish. At the Sebring (12 hour race), points are awarded at four hours, eight hours and at the finish. At Watkins Glen (6 hour race), points are awarded at three hours and at the finish. At Road Atlanta (10-hour race), points are awarded at four hours, eight hours and at the finish.[37]
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 (the others from that manufacturer not being counted), just like the season-long manufacturer championship.[37]
For example: in any particular segment manufacturer A finishes 1st and 2nd and manufacturer B finishes 3rd. Manufacturer A only receives first-place points for that segment. Manufacturer B receives the second-place points.[37]
Drivers' Championships
Prototype
| Bold - Pole position Italics - Fastest lap | |
- Notes:
- 1 – All drivers of car #10 were moved to last in class at Daytona for exceeding maximum drive-time limitation.[39]
- 2 – The #7 of Starworks Motorsport withdrew from the 12 Hours of Sebring before Practice with only Scott Mayer and Brendon Hartley confirmed as drivers.
Prototype Challenge
- Notes:
- 1 – Three drivers of car #8, Mirco Schultis, Renger van der Zande and Mike Hedlund, only scored one point at Daytona for exceeding maximum drive-time limitation.
- 2 – Two drivers of car #11, Gustavo Menezes and Jack Hawksworth, only scored one point at Daytona for exceeding maximum drive-time limitation.
- 3 – All drivers of car #16 were moved to last in class and only scored one point at Daytona for exceeding maximum drive-time limitation.
- 4 – Two drivers of car #85, Chris Miller and Gerry Kraut, only scored one point at Sebring for exceeding maximum drive-time limitation.
- Drivers denoted by † did not complete sufficient laps in order to score points.
GT Le Mans
GT Daytona
- Notes:
- 1 – Three drivers of car #73, Jim Norman, Nelson Canache Jr. and Kévin Estre, only scored one point at Daytona for exceeding maximum drive-time limitation.
- 2 – Michael Avenatti, driving with four other drivers in car #81, only scored one point at Daytona for exceeding maximum drive-time limitation.
- 3 – Two drivers of car #19, Ricardo Flores Jr. and Jim Michaelian, only scored one point at Daytona for exceeding maximum drive-time limitation.
- 4 – The #18 of Mühlner Motorsport America and the #009 of TRG-AMR North America withdrew from the 12 Hours of Sebring before Practice with only Connor De Phillippi and Dennis Trebing confirmed as drivers respectively.
- Drivers denoted by † did not complete sufficient laps in order to score points.
Teams' Championships
Prototype
- Notes:
- 1 – Car #10 was moved to last in class at Daytona for exceeding maximum drive-time limitation.[39]
- 2 – The #7 of Starworks Motorsport withdrew from the 12 Hours of Sebring before Practice with only Scott Mayer and Brendon Hartley confirmed as drivers.
Prototype Challenge
- Notes:
- 1 – Car #16 was moved to last in class and only scored one point at Daytona for exceeding maximum drive-time limitation.
- Cars denoted by † did not complete sufficient laps in order to score points.
GT Le Mans
GT Daytona
- Notes:
- 1 – The #18 of Mühlner Motorsport America and the #009 of TRG-AMR North America withdrew from the 12 Hours of Sebring before Practice with only Connor De Phillippi and Dennis Trebing confirmed as drivers respectively.
- Cars denoted by † did not complete sufficient laps in order to score points.
Manufacturers' Championships
Prototype
GT Le Mans
GT Daytona
- Notes:
- 1 – Porsche was unable to score at Laguna Seca due to a technical infraction, so they did not get the 35 points the winner usually gets. Audi finished second in the manufacturers' championship that race, but they did not get the points for first place.[40]
Tires' Championship
No North American Endurance Cup in the tires' championship
GT Le Mans
Notes and References
- Web site: 2015 Rolex 24 and Roar Before Dates Confirmed – TUDOR Championship – The Checkered Flag. 27 June 2014 . thecheckeredflag.co.uk. August 8, 2014.
- Web site: TUSC Set To Further Recognize Pro-Am P, GTLM Drivers. Sportscar365.com. 21 September 2014 . November 17, 2014.
- Web site: Interest Building in New Pro-Am Trueman/Akin Cup. Dagys. John. Sportscar365.com. 15 October 2014 . November 17, 2014.
- Web site: IMSA Unveils 2015 TUDOR United SportsCar Championship Schedule . imsa.com . August 10, 2014 . dead . https://web.archive.org/web/20140812211132/http://www.imsa.com/articles/imsa-unveils-2015-tudor-united-sportscar-championship-schedule . August 12, 2014 .
- News: Mazda Raceway TUSC Round to Feature All Four Classes in One Race. Sportscar365.com. February 6, 2015. Tony. DiZinno. February 6, 2015. John Dagys Media, LLC.
- Web site: IMSA Driver Pairing Regulations Adjusted. Sportscar365.com. November 7, 2014. Tony. DiZinno. 7 November 2014 .
- Web site: Petit Le Mans . IMSA.com . October 2, 2014 . dead . https://web.archive.org/web/20141006105816/http://www.imsa.com/races/petit-le-mans-7?invalidate-cache=1408747848 . October 6, 2014 .
- Web site:
- DidYouKnow
. Dagys. John. Twitter.com. October 2, 2014.
- Race shortened to 7 hours 49 minutes due to heavy rain.
- Web site: IMSA: PC race joins Detroit event for 2015. Racer.com. November 7, 2014. https://web.archive.org/web/20141107123559/http://www.racer.com/imsa/item/110425-imsa-pc-race-joins-detroit-event-for-2015. 2014-11-07. dead.
- News: Mazda Raceway TUSC Round to Feature All Four Classes in One Race. Sportscar365.com. February 6, 2015. Tony. DiZinno. February 6, 2015. John Dagys Media, LLC.
- News: Extreme Speed Motorsport contest full FIA WEC schedule in 2015. January 6, 2015. Autoweek. November 18, 2014.
- News: Dagys. John. 2015 Silly Season Update 1: P/PC. November 5, 2014. Sportscar365. October 16, 2014.
- News: Action Express to Run Whelen Corvette DP for Cameron, Curran. November 5, 2014. Sportscar365. October 23, 2014.
- News: DiZinno. Tony. Bourdais Back with Action Express for 2015. December 10, 2014. Sportscar365.
- News: Dagys. John. Papis, Keen Complete Lineup in AXR Whelen Corvette DP for Daytona. December 15, 2014. Sportscar365. December 10, 2014.
- News: DiZinno. Tony. Shank Confirms Honda Power for 2015 TUSC Season. December 15, 2014. Sportscar365. December 12, 2014.
- News: Dagys. John. RG Racing Targeting NAEC Program with Riley-Dinan DP. January 5, 2015. Sportscar365. October 20, 2014.
- News: DiZinno. Tony. Bomarito Returns to Mazda for 2015. November 17, 2014. Sportscar365. October 29, 2014.
- News: DiZinno. Tony. Hand Confirmed at Ganassi for 2015. December 17, 2014. Sportscar365. December 16, 2014.
- Web site: Chip Ganassi Racing with Felix Sabates sets 2015 Rolex 24 lineup. Motorsport.com. 18 December 2014 . December 19, 2014.
- Web site: Dagys. John. Van der Zande, Schultis Return to Starworks in PC. Sportscar365.com. John Dagys Media, LLC. January 5, 2015. January 5, 2015.
- Web site: Dagys. John. RSR Confirms PC Lineup, Closing in on FIA WEC LMP2 Effort for 2015. Sportscar365.com. October 7, 2014.
- Web site: Dagys. John. Mowlem, Papadopoulos Set for PC Season with BAR1. Sportscar365.com. 6 January 2015 . January 6, 2015.
- News: Dagys. John. Team RLL to Continue with BMW in 2015 with Revised Lineup. December 10, 2014. Sportscar365.
- News: Dagys. John. AMR Confirms One Vantage GTE for Daytona. Sportscar365.com. John Dagys Media, LLC. January 5, 2015. January 5, 2015.
- News: Dagys. John. 2015 Silly Season Update 1: GTLM/GTD. November 5, 2014. Sportscar365. October 20, 2014.
- 22 entered as Alex Job Racing and #23 entered as Team Seattle / Alex Job Racing.
- Web site: Dagys. John. Roar Before 24 Sunday Notebook. Sportscar365.com. 11 January 2015 . January 11, 2015.
- Web site: DiZinno. Tony. Flying Lizard Reveals Rolex 24 Lineup. Sportscar365.com. John Dagys Media, LLC. January 5, 2015. January 5, 2015.
- Web site: DiZinno. Tony. Bryce Miller to Focus on Enduros in 2015. Sportscar365.com. 31 October 2014 . November 4, 2014.
- Web site: Dagys. John. Bell, Sweedler Move to Scuderia Corsa for 2015. Sportscar365.com. 6 November 2014 . November 7, 2014.
- Web site: Dagys. John. Compass360 Racing announces IMSA GTD program. May 2015 . SportsCar365. 2 May 2015.
- Web site: Dagys. John. Lone Star Viper to Debut at COTA; Goossens Named Driver. 9 September 2015 . SportsCar365. 9 September 2015.
- Web site: DiZinno. Tony. Turner Reverses Course, Announces Full-Season GTD Return. Sportscar365.com. John Dagys Media, LLC. January 5, 2015. January 5, 2015.
- Web site: Dagys. John. TRG-AMR Signs Nielsen for GTD Program with Davison. Sportscar365.com. 6 November 2014 . November 7, 2014.
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