| 19.3.2005 | 12 h Sebring | 11 | B05/40 | Bob Berridge | Chamberlain-Synergy Motorsport | DNA |
| 19.3.2005 | 12 h Sebring | 16 | EX257 | Weaver / Wallace / Leitzinger | Dyson Racing Team | 3rd |
| 19.3.2005 | 12 h Sebring | 20 | EX257 | Smith / Dyson | Dyson Racing Team | 19th |
| 2.4.2005 | LMS Test Paul Ricard | 39 | B05/40 | Berridge / Evans / Owen | Chamberlain-Synergy Motorsport | 9th |
| 17.4.2005 | 2 h 45 min Road Atlanta | 16 | EX257 | Weaver / Leitzinger | Dyson Racing Team | 10th |
| 17.4.2005 | 2 h 45 min Road Atlanta | 19 | B2K/40 | Devlin / van der Steur / van der Steur | van der Steur Racing, Inc. | 23rd |
| 17.4.2005 | 2 h 45 min Road Atlanta | 20 | EX257 | Dyson / Wallace | Dyson Racing Team | 2nd |
| 17.4.2005 | 2 h 45 min Road Atlanta | 30 | B2K/40 | Clint Field | Telesis Intersport Racing | unused |
| 17.4.2005 | 2 h 45 min Road Atlanta | 37 | B05/40 | Field / Field | Telesis Intersport Racing | 4th |
| 17.4.2005 | 1000 km Spa | 39 | B05/40 | Berridge / Owen / Evans | Chamberlain-Synergy Motorsport | 5th |
| 17.4.2005 | 1000 km Spa | 41 | B05/42 | Binnie / Julien / Sharpe | Binnie Motorsports | DNA |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 16 | EX257 | Leitzinger / Weaver | Dyson Racing Team | 1st |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 19 | B2K/40 | Devlin / van der Steur / van der Steur | van der Steur Racing, Inc. | DNS |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 20 | EX257 | Dyson / Wallace | Dyson Racing Team | 2nd |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 30 | B2K/40 | Field / Ridpath | Telesis Intersport Racing | DNA |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 37 | B05/40 | Field / Field | Telesis Intersport Racing | 20th |
| 5.6.2005 | Le Mans Test | 32 | B05/40 | Fisken / Halliday / Hancock | Intersport Racing | 13th |
| 5.6.2005 | Le Mans Test | 39 | B05/40 | Berridge / Evans / Owen | Chamberlain-Synergy Motorsport | 17th |
| 19.6.2005 | 24 h Le Mans | 32 | B05/40 | Hancock / Halliday / Fisken | Intersport Racing | DNF |
| 19.6.2005 | 24 h Le Mans | 39 | B05/40 | Berridge / Owen / Evans | Chamberlain Synergy Motorsport | DNF |
| 19.6.2005 | 24 h Le Mans | | B2K/10 B | Calum Lockie | Taurus Sports Racing | DNA |
| 19.6.2005 | 24 h Le Mans | | B05/42 | Binnie / Sharpe / Julien | Binnie Motorsports | DNA |
| 4.7.2005 | 2 h 45 min Lime Rock | 16 | EX257 | Leitzinger / Weaver | Dyson Racing Team | 12th |
| 4.7.2005 | 2 h 45 min Lime Rock | 19 | B2K/40 | Devlin / van der Steur | van der Steur Racing Inc. | 16th |
| 4.7.2005 | 2 h 45 min Lime Rock | 20 | EX257 | Wallace / Dyson | Dyson Racing Team | 20th |
| 4.7.2005 | 2 h 45 min Lime Rock | 37 | B05/40 | Field / Field | Intersport Racing | DNA |
| 10.7.2005 | 1000 km Monza | 27 | B05/41 | Theys / Lienhard | Horag Lista Racing | DNF |
| 10.7.2005 | 1000 km Monza | 39 | B05/40 | Evans / Owen / Berridge | Chamberlain-Synergy Motorsport | 5th |
| 10.7.2005 | 1000 km Monza | 41 | B05/42 | Sharpe / Binnie / Julien | Binnie Motorsports | DNF |
| 17.7.2005 | 2 h 45 min Sonoma | 16 | EX257 | Leitzinger / Weaver | Dyson Racing Team | 5th |
| 17.7.2005 | 2 h 45 min Sonoma | 20 | EX257 | Wallace / Dyson | Dyson Racing Team | 2nd |
| 17.7.2005 | 2 h 45 min Sonoma | 37 | B05/40 | Halliday / Field | Intersport Racing | 4th |
| 30.7.2005 | 2 h 45 min Portland | 16 | EX257 | Leitzinger / Weaver | Dyson Racing Team | 3rd |
| 30.7.2005 | 2 h 45 min Portland | 20 | EX257 | Wallace / Dyson | Dyson Racing Team | 2nd |
| 30.7.2005 | 2 h 45 min Portland | 37 | B05/40 | Fisken / Field | Intersport Racing | 4th |
| 13.8.2005 | 1000 km Silverstone | 19 | B98/10 | Camino / Stretton | Chamberlain-Synergy Motorsport | DNF |
| 13.8.2005 | 1000 km Silverstone | 27 | B05/41 | Theys / Lienhard | Horag Lista Racing | 13th |
| 13.8.2005 | 1000 km Silverstone | 39 | B05/40 | Berridge / Evans | Chamberlain-Synergy Motorsport | 19th |
| 13.8.2005 | 1000 km Silverstone | 41 | B05/42 | Hancock / Binnie / Timpany | Binnie Motorsports | DNF |
| 21.8.2005 | 2 h 45 min Road America | 16 | EX257 | Weaver / Leitzinger | Dyson Racing Team | 12th |
| 21.8.2005 | 2 h 45 min Road America | 19 | B2K/40 | Devlin / van der Steur | Van der Steur Racing | 14th |
| 21.8.2005 | 2 h 45 min Road America | 20 | EX257 | Dyson / Wallace | Dyson Racing Team | 2nd |
| 21.8.2005 | 2 h 45 min Road America | 37 | B05/40 | Halliday | Intersport Racing | 23rd |
| 4.9.2005 | 2 h 30 min Mosport | 16 | EX257 | Weaver / Leitzinger | Dyson Racing Team | 1st |
| 4.9.2005 | 2 h 30 min Mosport | 19 | B2K/40 | Devlin | Van der Steur Racing | 22nd |
| 4.9.2005 | 2 h 30 min Mosport | 20 | EX257 | Dyson / Wallace | Dyson Racing Team | 4th |
| 4.9.2005 | 1000 km Nürburgring | 27 | B05/41 | Theys / van de Poele | Horag Lista Racing | 7th |
| 4.9.2005 | 2 h 30 min Mosport | 37 | B05/40 | Halliday / Field | Intersport Racing | 5th |
| 4.9.2005 | 1000 km Nürburgring | 39 | B05/40 | Berridge / Evans / Owen | Chamberlain-Synergy Motorsport | 21st |
| 4.9.2005 | 1000 km Nürburgring | 41 | B05/42 | Hancock / Binnie / Timpany | Binnie Motorsports | NC |
| 1.10.2005 | Petit Le Mans | 7 | B2K/40 | Woodman / Forgeois / Johnson | BAT Competition | 16th |
| 1.10.2005 | Petit Le Mans | 16 | EX257 | Weaver / Wallace / Leitzinger | Dyson Racing Team | 26th |
| 1.10.2005 | Petit Le Mans | 19 | B2K/40 | Devlin | van der Steur Racing, Inc. | 29th |
| 1.10.2005 | Petit Le Mans | 20 | EX257 | Dyson / Smith | Dyson Racing Team | 2nd |
| 1.10.2005 | Petit Le Mans | 27 | B05/41 | van de Poele / Theys | Horag-Lista Racing | DNS |
| 1.10.2005 | Petit Le Mans | 37 | B05/40 | Field / Field / Halliday | Intersport Racing | 5th |
| 1.10.2005 | Petit Le Mans | 41 | B05/42 | Binnie / Timpany / Hancock | Binnie Motorsports | 25th |
| 16.10.2005 | 4 h Laguna Seca | 16 | EX257 | Leitzinger / Weaver | Dyson Racing Team | 6th |
| 16.10.2005 | 4 h Laguna Seca | 19 | B2K/40 | Devlin / van der Steur | Van der Steur Racing | 23rd |
| 16.10.2005 | 4 h Laguna Seca | 20 | EX257 | Dyson / Wallace | Dyson Racing Team | 3rd |
| 16.10.2005 | 4 h Laguna Seca | 37 | B05/40 | Field / Halliday / Field | Intersport Racing | 26th |
| 13.11.2005 | 1000 km Istanbul | 27 | B05/41 | Theys / Björk | Horag Lista Racing | 9th |
| 13.11.2005 | 1000 km Istanbul | 39 | B05/40 | Smith / Evans / Owen | Chamberlain Synergy Motor | 7th |