| 4.4.2004 | British GT Donington | 81 | Mantis | Beighton / Finnemore | Team Tiger | DNF/DNF |
| 25.4.2004 | Spanish GT Albacete | 5 | Mantara LM600 Evo | de Castro / Burgueño | Meycom Sport | 1st/DNF |
| 25.4.2004 | Spanish GT Albacete | 10 | Mantara LM600 Evo | Euser / Van Dongen | Marcos Racing Internacional | 6th/19th |
| 25.4.2004 | Spanish GT Albacete | 25 | Mantis | Manuel Saez-Merino | Marcos Racing Internacional | 15th/12th |
| 9.5.2004 | British GT Mondello Park | 81 | Mantis | Beighton / Finnemore | Team Tiger | DNS/13th |
| 23.5.2004 | Spanish GT Jarama | 5 | Mantara LM600 Evo | de Castro / Burgueño | Meycom Sport | 1st/1st |
| 23.5.2004 | Spanish GT Jarama | 10 | Mantara LM600 Evo | Euser / Van Dongen | Marcos Racing Internacional | 3rd/7th |
| 23.5.2004 | Spanish GT Jarama | 25 | Mantis | Saez-Merino / Krieger | Marcos Racing Internacional | DNF/20th |
| 5.6.2004 | Belcar Spa SER | 42 | Mantis | | Moritz Racing | DNA |
| 6.6.2004 | British GT Snetterton | 81 | Mantis | Beighton / Finnemore | Team Tiger | 9th/DNF |
| 20.6.2004 | British GT Castle Combe | 81 | Mantis | Beighton / Finnemore | Team Tiger | 8th/9th |
| 27.6.2004 | Spanish GT Estoril | 5 | Mantara LM600 Evo | de Castro / Burgueño | Meycom Sport | 11th/2nd |
| 27.6.2004 | Spanish GT Estoril | 10 | Mantara LM600 Evo | Euser / Van Dongen | Marcos Racing International | 2nd/1st |
| 27.6.2004 | Spanish GT Estoril | 25 | Mantis | Saez-Merino / van Soelen | Marcos Racing International | 19th/14th |
| 18.7.2004 | British GT Oulton Park | 81 | Mantis | Beighton / Finnemore | Team Tiger | 8th/21st |
| 8.8.2004 | Euro GT Zandvoort | 33 | Mantara LM600 Evo | Jos Menten | Marcos Racing International | 10th |
| 8.8.2004 | Euro GT Zandvoort | 42 | Mantara LM600 Evo | Herman Buurman | Herman Buurman | 13th |
| 8.8.2004 | Euro GT Zandvoort | 52 | Mantis | Pieter van Soelen | Marcos Racing International | 6th |
| 8.8.2004 | Euro GT Zandvoort | 53 | Mantis | Rudolf van Soelen | Marcos Racing International | 12th |
| 8.8.2004 | Euro GT Zandvoort | 54 | Mantis | | Marcos Racing International | DNA |
| 8.8.2004 | Euro GT Zandvoort | 55 | Mantis | Peter van der Kolk | H&P | DNF |
| 8.8.2004 | Euro GT Zandvoort | 62 | Mantis | Dennis Swart | Moritz Racing | 17th |
| 8.8.2004 | Euro GT Zandvoort | 63 | Mantis | Happé / Moritz | Moritz Racing | 18th |
| 8.8.2004 | Euro GT Zandvoort | 64 | Mantis | Cor Brom | Marcos Racing International | 16th |
| 8.8.2004 | Euro GT Zandvoort | 67 | Mantis | van der Heuvel / Roelse | H&P | DNF |
| 8.8.2004 | Euro GT Zandvoort | 71 | Mantis | Mathew van Diessen | Wijnakker Racing | DNA |
| 8.8.2004 | Euro GT Zandvoort | 500 | Mantara LM600 Evo | Cor Euser | Marcos Racing International | 1st |
| 8.8.2004 | Euro GT Zandvoort | | Mantis | Nico Verdoes | | DNA |
| 15.8.2004 | British GT Silverstone | 81 | Mantis | Beighton / Finnemore | Team Tiger | 19th/11th |
| 22.8.2004 | 24 h Zolder | 42 | Mantis | Happé / Moritz / Brom | Moritz | 23rd |
| 30.8.2004 | British GT Thruxton | 81 | Mantis | Beighton / Finnemore | Team Tiger | 11th/9th |
| 12.9.2004 | Spanish GT Valencia | 5 | Mantara LM600 Evo | de Castro / Burgueño | Meycom Sport | DNF/1st |
| 12.9.2004 | Spanish GT Valencia | 10 | Mantara LM600 Evo | Euser / Van Dongen | Marcos Racing Internacional | DNF/DNF |
| 12.9.2004 | Spanish GT Valencia | 14 | Mantara LM600 | Buurman / Buurman | Herman Buurman | DNA |
| 12.9.2004 | Spanish GT Valencia | 25 | Mantis | Saez-Merino / van der Kolk | Marcos Racing Internacional | 7th/11th |
| 12.9.2004 | Spanish GT Valencia | 32 | Mantis | Carl Krieger / Luis Bermudez de Castro | Marcos Racing Internacional | 15th/21st |
| 12.9.2004 | Spanish GT Valencia | 33 | Mantis | Paul Gebbink | Marcos Racing Internacional | DNF/DNF |
| 26.9.2004 | Belcar Spa RF | 15 | Mantara LM600 Evo | Euser / Van Dongen | | DNF |
| 3.10.2004 | British GT Brands Hatch | 81 | Mantis | Beighton / Finnemore | Team Tiger | DNS/13th |
| 10.10.2004 | Spanish GT Jerez | 5 | Mantara LM600 Evo | de Castro / Burgueño | Meycom Sport | 2nd/2nd |
| 10.10.2004 | Spanish GT Jerez | 25 | Mantis | Saez-Merino / van der Kolk | Marcos Racing Internacional | DNF/DNS |
| 10.10.2004 | Spanish GT Jerez | 32 | Mantis | Carl Krieger / Luis Bermudez de Castro | Marcos Racing Internacional | 17th/DQ |
| 10.10.2004 | Spanish GT Jerez | 33 | Mantis | van Putten / van Zuylen | Marcos Racing Internacional | 14th/16th |
| 14.11.2004 | Spanish GT Barcelona | 5 | Mantara LM600 Evo | de Castro / Burgueño | Meycom Sport | 1st |
| 14.11.2004 | Spanish GT Barcelona | 25 | Mantis | Saez-Merino / van der Kolk | Marcos Racing International | 16th |
| 14.11.2004 | Spanish GT Barcelona | 32 | Mantis | Euser / Krieger / Bermudez de Castro | Marcos Racing International | 28th |
| 14.11.2004 | Spanish GT Barcelona | 33 | Mantis | van Putten / van Zuylen | Marcos Racing International | DNS |
| 14.11.2004 | Spanish GT Barcelona | 50 | Mantara LM600 | Paillard / Taylor / Vannelet | Taylors Foundry Motorsport | DNF |
| 25.11.2004 | Bahrain [Heat 1] | 72 | Mantis | Beighton / Finnemore | Team Tiger | 39th |
| 26.11.2004 | Bahrain [Heat 3] | 72 | Mantis | Beighton / Finnemore | Team Tiger | DNS |
| 26.11.2004 | Bahrain [Heat 2] | 72 | Mantis | Finnemore / Beighton | Team Tiger | DNS |
| 26.11.2004 | Bahrain GT Festival | 72 | Mantis | Beighton / Finnemore | Team Tiger | DNS |