| 25.1.2015 | 24 h Daytona | 11 | FLM 09 | Cumming / Hawksworth / Junqueira / Menezes | RSR Racing | 34th |
| 25.1.2015 | 24 h Daytona | 16 | FLM 09 | Mowlem / Papadopoulos / Drissi / Alder / Plowman | BAR1 Motorsports | 53rd |
| 25.1.2015 | 24 h Daytona | 38 | FLM 09 | French / Mee / Vance / Johnston | Performance Tech Motorsports | 44th |
| 25.1.2015 | 24 h Daytona | 52 | FLM 09 | Kimber-Smith / Guasch / Novich / Palmer | PR1/Mathiasen Motorsports | 8th |
| 25.1.2015 | 24 h Daytona | 54 | FLM 09 | Braun / Bennett / Wilkins / Gue | Core Autosport | 10th |
| 25.1.2015 | 24 h Daytona | 61 | FLM 09 | Plowman / Drumwright / Breukers / Blackstock / Ruscitti | BAR1 Motorsports | 40th |
| 21.3.2015 | 12 h Sebring | 8 | FLM 09 | Popow / van der Zande / Schultis | Starworks Motorsport | 30th |
| 21.3.2015 | 12 h Sebring | 11 | FLM 09 | Cumming / Junqueira / Menezes | RSR Racing | 31st |
| 21.3.2015 | 12 h Sebring | 16 | FLM 09 | Plowman / Drumwright / Drissi / Cheng | BAR1 Motorsports | 34th |
| 21.3.2015 | 12 h Sebring | 38 | FLM 09 | Daly / Mee / French | Performance Tech Motorsports | 9th |
| 21.3.2015 | 12 h Sebring | 52 | FLM 09 | Kimber-Smith / Guasch / Palmer | PR1/Mathiasen Motorsports | 6th |
| 21.3.2015 | 12 h Sebring | 54 | FLM 09 | Braun / Bennett / Gue | Core Autosport | 7th |
| 21.3.2015 | 12 h Sebring | 85 | FLM 09 | Mitchell / Goikhberg / Miller / Kraut | JDC/Miller Motorsports | 29th |
| 24.3.2015 | ELMS Test Paul Ricard | 33 | 03 R | Pieter de Bruijn / Jun Jin | Eurasia Motorsport | 7th |
| 24.3.2015 | ELMS Test Paul Ricard | 37 | 03 | Aleshin / Ladygin / Ladygin / Minassian | SMP Racing | 5th |
| 24.3.2015 | ELMS Test Paul Ricard | 44 | 03 R | Perret / la Rosa / Ibanez / Yamagishi | Ibanez Racing | 11th |
| 24.3.2015 | ELMS Test Paul Ricard | 45 | 03 R | Bellarosa / Ibanez / Perret | Ibanez Racing | 6th |
| 24.3.2015 | ELMS Test Paul Ricard | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | 2nd |
| 24.3.2015 | ELMS Test Paul Ricard | 48 | 03 R | Berthon / Lyons / Patterson | Murphy Prototypes | 1st |
| 28.3.2015 | WEC Test Paul Ricard | 47 | 05 | Howson / Bradley / Tandy / Lapierre | KCMG | 8th |
| 11.4.2015 | 4 h Silverstone | 32 | 03 | Minassian / Markozov / Mediani | AF Corse | 6th |
| 11.4.2015 | 4 h Silverstone | 33 | 03 R | Pieter de Bruijn / Jun Jin | Eurasia Motorsport | 5th |
| 11.4.2015 | 4 h Silverstone | 34 | 03 | Ladygin / Aleshin / Ladygin | AF Corse | 19th |
| 11.4.2015 | 4 h Silverstone | 44 | 03 | la Rosa / Yamagishi | Ibanez Racing | DNF |
| 11.4.2015 | 4 h Silverstone | 45 | 03 R | Bellarosa / Ibanez / Perret | Ibanez Racing | 7th |
| 11.4.2015 | 4 h Silverstone | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | 3rd |
| 11.4.2015 | 4 h Silverstone | 48 | 03 R | Lyons / Berthon / Patterson | Murphy Prototypes | DNF |
| 12.4.2015 | 6 h Silverstone | 47 | 05 | Howson / Bradley / Tandy | KCMG | 19th |
| 2.5.2015 | 6 h Spa | 47 | 05 | Howson / Bradley / Lapierre | KCMG | 12th |
| 3.5.2015 | 2 h Laguna Seca | 8 | FLM 09 | Schultis / van der Zande | Starworks Motorsport | 20th |
| 3.5.2015 | 2 h Laguna Seca | 11 | FLM 09 | Cumming / Junqueira | RSR Racing | 6th |
| 3.5.2015 | 2 h Laguna Seca | 16 | FLM 09 | Slusher / Falb | BAR1 Motorsports | 19th |
| 3.5.2015 | 2 h Laguna Seca | 38 | FLM 09 | French / Hedlund | Performance Tech Motorsports | 10th |
| 3.5.2015 | 2 h Laguna Seca | 52 | FLM 09 | Guasch / Kimber-Smith | PR1/Mathiasen Motorsports | 33rd |
| 3.5.2015 | 2 h Laguna Seca | 54 | FLM 09 | Bennett / Braun | Core Autosport | 8th |
| 3.5.2015 | 2 h Laguna Seca | 85 | FLM 09 | Goikhberg / Veach | JDC/Miller Motorsports | 16th |
| 17.5.2015 | 4 h Imola | 33 | 03 R | Pieter de Bruijn / Jun Jin | Eurasia Motorsport | 7th |
| 17.5.2015 | 4 h Imola | 44 | 03 | Perret / Yamagishi | Ibanez Racing | DNF |
| 17.5.2015 | 4 h Imola | 45 | 03 R | Bellarosa / Ibanez | Ibanez Racing | 6th |
| 17.5.2015 | 4 h Imola | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | 1st |
| 17.5.2015 | 4 h Imola | 48 | 03 R | Berthon / Lyons / Patterson | Murphy Prototypes | 2nd |
| 30.5.2015 | 100 min Detroit | 8 | FLM 09 | Schultis / van der Zande | Starworks Motorsport | 6th |
| 30.5.2015 | 100 min Detroit | 11 | FLM 09 | Cumming / Junqueira | RSR Racing | 21st |
| 30.5.2015 | 100 min Detroit | 16 | FLM 09 | | BAR1 Motorsports | DNA |
| 30.5.2015 | 100 min Detroit | 38 | FLM 09 | French / Vance | Performance Tech Motorsports | 10th |
| 30.5.2015 | 100 min Detroit | 52 | FLM 09 | Guasch / Kimber-Smith | PR1/Mathiasen Motorsports | 22nd |
| 30.5.2015 | 100 min Detroit | 54 | FLM 09 | Bennett / Braun | Core Autosport | 19th |
| 30.5.2015 | 100 min Detroit | 85 | FLM 09 | Goikhberg / Simpson | JDC/Miller Motorsports | 9th |
| 31.5.2015 | Le Mans Test | 44 | 03 R | Yamagishi / Perret / Raffin / Ibanez | Ibanez Racing | 59th |
| 31.5.2015 | Le Mans Test | 45 | 03 R | Perret / Bellarosa / Ibanez | Ibanez Racing | 25th |
| 31.5.2015 | Le Mans Test | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | 17th |
| 31.5.2015 | Le Mans Test | 47 | 05 | Howson / Lapierre / Bradley | KCMG | 15th |
| 31.5.2015 | Le Mans Test | 48 | 03 R | Chandhok / Patterson / Berthon | Murphy Prototypes | 14th |
| 31.5.2015 | Le Mans Test | 49 | 03 R | Fujii / Hoshino / Klien | KCMG | 34th |
| 14.6.2015 | 24 h Le Mans | 44 | 03 R | Pierre Perret | Ibanez Racing | DNA |
| 14.6.2015 | 24 h Le Mans | 45 | 03 R | Ibanez / Perret / Bellarosa | Ibanez Racing | 16th |
| 14.6.2015 | 24 h Le Mans | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | T-car |
| 14.6.2015 | 24 h Le Mans | 46T | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | DNF |
| 14.6.2015 | 24 h Le Mans | 47 | 05 | Howson / Bradley / Lapierre | KCMG | 9th |
| 14.6.2015 | 24 h Le Mans | 48 | 03 R | Chandhok / Patterson / Berthon | Murphy Prototypes | 13th |
| 14.6.2015 | 24 h Le Mans | 49 | 03 R | Fujii / Hoshino / Klien / Imperatori | KCMG | DNA |
| 28.6.2015 | 6 h Watkins Glen | 8 | FLM 09 | Hedlund / van der Zande / Popow | Starworks Motorsport | 4th |
| 28.6.2015 | 6 h Watkins Glen | 11 | FLM 09 | Cumming / Junqueira | RSR Racing | 30th |
| 28.6.2015 | 6 h Watkins Glen | 16 | FLM 09 | Burkett / McMurry / Plowman | BAR1 Motorsports | 6th |
| 28.6.2015 | 6 h Watkins Glen | 38 | FLM 09 | Daly / French / Mee | Performance Tech Motorsports | 31st |
| 28.6.2015 | 6 h Watkins Glen | 52 | FLM 09 | Guasch / Kimber-Smith / Palmer | PR1/Mathiasen Motorsports | 5th |
| 28.6.2015 | 6 h Watkins Glen | 54 | FLM 09 | Bennett / Braun / Gue | Core Autosport | 7th |
| 28.6.2015 | 6 h Watkins Glen | 85 | FLM 09 | Goikhberg / Mitchell / Miller | JDC/Miller Motorsports | 9th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 8 | FLM 09 | Schultis / van der Zande | Starworks Motorsport | 22nd |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 11 | FLM 09 | Cumming / Junqueira | RSR Racing | 16th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 16 | FLM 09 | Falb / Rayhall | BAR1 Motorsports | 10th |
| 12.7.2015 | 4 h Red Bull Ring | 33 | 03 R | Pieter de Bruijn / Jun Jin | Eurasia Motorsport | 8th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 38 | FLM 09 | French / Daly | Performance Tech Motorsports | 23rd |
| 12.7.2015 | 4 h Red Bull Ring | 44 | 03 | Perret / Yamagishi | Ibanez Racing | DNF |
| 12.7.2015 | 4 h Red Bull Ring | 45 | 03 | Bellarosa / Ibanez | Ibanez Racing | 9th |
| 12.7.2015 | 4 h Red Bull Ring | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | 2nd |
| 12.7.2015 | 4 h Red Bull Ring | 48 | 03 R | Berthon / Lyons / Patterson | Murphy Prototypes | 6th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 52 | FLM 09 | Guasch / Kimber-Smith | PR1/Mathiasen Motorsports | 20th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 54 | FLM 09 | Bennett / Braun | Core Autosport | 8th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 85 | FLM 09 | McMurry / Goikhberg | JDC/Miller Motorsports | 11th |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 8 | FLM 09 | Schultis / van der Zande | Starworks Motorsport | 3rd |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 11 | FLM 09 | Cumming / Junqueira | RSR Racing | 2nd |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 16 | FLM 09 | Slusher / Rayhall | BAR1 Motorsports | 5th |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 38 | FLM 09 | French / Daly | Performance Tech Motorsports | 16th |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 52 | FLM 09 | Guasch / Kimber-Smith | PR1/Mathiasen Motorsports | 1st |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 54 | FLM 09 | Bennett / Braun | Core Autosport | 4th |
| 25.7.2015 | 2 h Lime Rock [PC/GTD] | 85 | FLM 09 | Simpson / Goikhberg | JDC/Miller Motorsports | 6th |
| 9.8.2015 | 2 h 40 min Road America | 8 | FLM 09 | Schultis / van der Zande | Starworks Motorsport | 31st |
| 9.8.2015 | 2 h 40 min Road America | 11 | FLM 09 | Cumming / Junqueira | RSR Racing | 7th |
| 9.8.2015 | 2 h 40 min Road America | 16 | FLM 09 | McMurry / Burkett | BAR1 Motorsports | 12th |
| 9.8.2015 | 2 h 40 min Road America | 38 | FLM 09 | French / Daly | Performance Tech Motorsports | 8th |
| 9.8.2015 | 2 h 40 min Road America | 52 | FLM 09 | Guasch / Kimber-Smith | PR1/Mathiasen Motorsports | 10th |
| 9.8.2015 | 2 h 40 min Road America | 54 | FLM 09 | Bennett / Braun | Core Autosport | 9th |
| 9.8.2015 | 2 h 40 min Road America | 85 | FLM 09 | Miller / Goikhberg | JDC/Miller Motorsports | 32nd |
| 30.8.2015 | 6 h Nürburgring | 47 | 05 | Howson / Bradley / Tandy | KCMG | 7th |
| 6.9.2015 | 4 h Paul Ricard | 33 | 03 R | Pieter de Bruijn / Bradley | Eurasia Motorsport | DNF |
| 6.9.2015 | 4 h Paul Ricard | 46 | 05 | Gommendy / Thiriet / Badey | Thiriet by TDS Racing | 6th |
| 6.9.2015 | 4 h Paul Ricard | 48 | 03 R | Berthon / Lyons / Patterson | Murphy Prototypes | DNF |
| 19.9.2015 | 6 h Austin | 47 | 05 | Howson / Bradley / Lapierre | KCMG | 6th |
| 19.9.2015 | 2 h 40 min Austin | 54 | FLM 09 | Bennett / Braun | Core Autosport | 6th |