| 5.10.2003 | 400 km Virginia | 83 | #WP0ZZZ99Z1S692201 | Neiman / van Overbeek | Flying Lizard Motorsports | DNA |
| 5.10.2003 | 400 km Virginia | 84 | #WP0ZZZ99Z1S692067 | Mortimer / Hupfer | Acme Motorsport | DNA |
| 12.10.2003 | Spanish GT Jerez | 9 | | Jean-Luc Maury-Laribiére / Antonio Chacón | Noel Del Bello Racing | 7th/6th |
| 12.10.2003 | Spanish GT Jerez | 10 | | Villalba Ruiz / Gutiérrez | Motor Competicion | 9th/DNF |
| 12.10.2003 | Spanish GT Jerez | 12 | | Pais Do Amaral / Couceiro | ASM Team | 2nd/DNS |
| 12.10.2003 | Spanish GT Jerez | 14 | | Brocard / Desbruères | Daniel Desbrueres | DNF/8th |
| 12.10.2003 | Spanish GT Jerez | 62 | | Schirle / Perez Fontan | Cirtek | DNF/DNS |
| 18.10.2003 | Petit Le Mans | 23 | #WP0ZZZ99Z3S692072 | Maassen / Luhr | Alex Job Racing | 9th |
| 18.10.2003 | Petit Le Mans | 24 | #WP0ZZZ99Z3S692071 | Bernhard / Bergmeister / Dumas | Alex Job Racing | 8th |
| 18.10.2003 | Petit Le Mans | 31 | #WP0ZZZ99Z2S692079 | Mowlem | White Lightning/Petersen Motorsports | 34th |
| 18.10.2003 | Petit Le Mans | 33 | #WP0ZZZ99Z3S692062b | Lally / Pumpelly / Ivankovich | ZIP Racing | DNA |
| 18.10.2003 | Petit Le Mans | 39 | | Romeo Kapudija | ZIP Racing | DNA |
| 18.10.2003 | Petit Le Mans | 42 | #WP0ZZZ99Z3S692063 | Pobst / Policastro, Jr. / Policastro | Orbit Racing | 20th |
| 18.10.2003 | Petit Le Mans | 43 | #WP0ZZZ99Z2S692065 | Baron / Rockenfeller / Hindery | Orbit Racing | 23rd |
| 18.10.2003 | Petit Le Mans | 52 | #WP0ZZZ99Z2S692076 | Burgess / Collin / Bagnall | Seikel Motorsport | 31st |
| 18.10.2003 | Petit Le Mans | 66 | #WP0ZZZ99Z3S692080 | Buckler / Wagner / Long | The Racer's Group | 15th |
| 18.10.2003 | Petit Le Mans | 67 | #WP0ZZZ99Z3S692076 | Nastasi / Zwart | The Racer's Group | 32nd |
| 18.10.2003 | Petit Le Mans | 68 | #WP0ZZZ99Z2S692109 | Gleason / Ehret / Bunting | The Racer's Group | 28th |
| 18.10.2003 | Petit Le Mans | 79 | #WP0ZZZ99Z2S692063 | Murry / Jackson / Cunningham | J-3 Racing, Inc. | 16th |
| 18.10.2003 | Petit Le Mans | 89 | #WP0ZZZ99Z1S692077 | Negri / Frisselle | Inline Cunningham Racing | 26th |
| 19.10.2003 | Belcar Zolder BM | 31 | #WP0ZZZ99Z2S692073 | Penders / Goossens | RTM Racing | 13th |
| 19.10.2003 | Belcar Zolder BM | 34 | | Menten / Verbergt | AD Sport | 4th |
| 19.10.2003 | Belcar Zolder BM | 36 | | Thiers / Thiers / Thiers | Russell Racing | 9th |
| 19.10.2003 | Belcar Zolder BM | 40 | #WP0ZZZ99Z3S692068 | Lefort / Lambert | Ice Pol Racing Team | 7th |
| 19.10.2003 | 500 km Monza [GT] | 50 | #WP0ZZZ99Z3S692073 | Ortelli / Lieb | Freisinger Motorsport | 10th |
| 19.10.2003 | 500 km Monza [GT] | 51 | #WP0ZZZ99Z2S692071 | Longin / Gardel | Freisinger Motorsport | 20th |
| 19.10.2003 | 500 km Monza [GT] | 64 | #WP0ZZZ99Z1S692090 | Premoli / Barbaro / De Castro | AB Motorsport | DNF |
| 19.10.2003 | 500 km Monza [GT] | 66 | #WP0ZZZ99Z2S692097 | Alessi / Mediani / Gay | Autorlando Sport | DNA |
| 19.10.2003 | 500 km Monza [GT] | 67 | #WP0ZZZ99Z1S692065 | Spinelli / Sabatini | Autorlando | 13th |
| 19.10.2003 | 500 km Monza [GT] | 69 | #WP0ZZZ99Z1S692073 | Ried / Marcinkiewicz / Ried | Proton Competition | 18th |
| 19.10.2003 | 500 km Monza [GT] | 74 | #WP0ZZZ99Z1S692086 | Barff / Jordan | Team Eurotech | 11th |
| 19.10.2003 | 500 km Monza [GT] | 77 | #WP0ZZZ99Z1S692088 | Vasiliev / Fomenko | RWS Yukos Motorsport | 14th |
| 19.10.2003 | 500 km Monza [GT] | 86 | #WP0ZZZ99Z1S692084 | Felbermayr, Jr. / Felbermayr, Sr. | JVG Racing | 25th |
| 26.10.2003 | FFSA GT Magny-Cours | 25 | | Miloé / Ruffier | Ruffier Racing | 12th/8th |
| 26.10.2003 | FFSA GT Magny-Cours | 26 | | Miloé / Hugot | Ruffier Racing | 16th/27th |
| 26.10.2003 | Autopolis GT | 26 | | Yamaji / Nishizawa | Team Taisan Advan | 16th |
| 26.10.2003 | FFSA GT Magny-Cours | 29 | | Bornhauser / Thévenin | V B M | 10th/35th |
| 26.10.2003 | FFSA GT Magny-Cours | 36 | | Marques / Roux | Scorp Motorsport | 35th/12th |
| 26.10.2003 | 500 km Misano | | | "Schmid" | | 2nd |
| 26.10.2003 | 500 km Misano | | | Drudi / Gabellini | | 3rd |
| 2.11.2003 | 3 h Daytona | 26 | #WP0ZZZ99Z2S692062b | Nastasi / Ziegelman | Blackforest Motorsports Group | 31st |
| 2.11.2003 | 3 h Daytona | 44 | #WP0ZZZ99Z3S692063 | Policastro, Jr. / Policastro | Orbit Racing | 12th |
| 2.11.2003 | 3 h Daytona | 66 | #WP0ZZZ99Z3S692080 | Buckler / Gleason / Ehret | The Racers Group | 10th |
| 2.11.2003 | 3 h Daytona | 68 | #WP0ZZZ99Z2S692109 | Buckler / Ehret / Gleason | The Racers Group | DNS |
| 2.11.2003 | 3 h Daytona | 83 | #WP0ZZZ99Z1S692201 | Neiman / van Overbeek / Pechnik | Rennwerks Motorsports | 8th |
| 2.11.2003 | 3 h Daytona | 98 | #WP0ZZZ99Z2S692100 | Schumacher | Schumacher Racing | 37th |
| 9.11.2003 | Spanish GT Barcelona | 10 | | Villalba Ruiz / Gutiérrez | Motor Competicion | 4th |
| 9.11.2003 | Spanish GT Barcelona | 11 | | Felbermayr, Sr. / Felbermayr, Jr. | JVG Racing | 8th |
| 9.11.2003 | Spanish GT Barcelona | 12 | | Pais Do Amaral / Couceiro | ASM Team | 14th |
| 9.11.2003 | Spanish GT Barcelona | 14 | | Brocard / Desbruères / Béchu | Daniel Desbrueres | 27th |
| 9.11.2003 | Spanish GT Barcelona | 18 | | Khan / Barbany | JVG Racing | 5th |
| 9.11.2003 | 6 h Vallelunga | 23 | | "Yah-Man" / Moncini / "Base Up" | Scud. Sant Ambroeus | DNF |
| 9.11.2003 | 6 h Vallelunga | 24 | | Bianchini / Cappelli / Chini | Sport Center | DNF |
| 9.11.2003 | 6 h Vallelunga | 26 | | De Castro / Premoli / Barbaro | AB Motorsport | 9th |
| 9.11.2003 | 6 h Vallelunga | 27 | | Ben / Pigoli / Rapetti | Ebimotors | 5th |
| 9.11.2003 | 6 h Vallelunga | 28 | | Benedetti / Schiatti / Vial | Tirelli Motorsport | 8th |
| 9.11.2003 | 6 h Vallelunga | 29 | | Sabatini / Riolo / Spinelli | Autorlando Sport | 4th |
| 9.11.2003 | 1000 km Le Mans | 32 | #WP0ZZZ99Z2S692088 | van Merksteijn / Munsterhuis | System Force Motorsport | 24th |
| 9.11.2003 | 1000 km Le Mans | 33 | #WP0ZZZ99Z2S692079 | Noël / Tinseau | Bernard Jubin | 14th |
| 9.11.2003 | 1000 km Le Mans | 34 | #WP0ZZZ99Z1S692091 | Maury-Laribiére / Caternet / Collin | Noël del Bello | 28th |
| 9.11.2003 | 1000 km Le Mans | 37 | | David Warnock | PK Sport Ltd. | DNA |
| 9.11.2003 | 1000 km Le Mans | 39 | #WP0ZZZ99Z3S692073 | Ortelli / Daoudi / Vasiliev | Freisinger Motorsport | 11th |
| 9.11.2003 | 1000 km Le Mans | 40 | #WP0ZZZ99Z2S692067 | Mowlem / Caffi / Rosa | Seikel Motorsport | 21st |
| 9.11.2003 | 1000 km Le Mans | 41 | #WP0ZZZ99Z1S692207 | Burgess / Collin | Seikel Motorsport | DNA |
| 9.11.2003 | 1000 km Le Mans | 42 | #WP0ZZZ99Z1S692081 | Forgeois / Daniels / Coekelberghs | T2M Motorsport | 26th |
| 9.11.2003 | 1000 km Le Mans | 43 | #WP0ZZZ99Z2S692068 | Reid / Yamaji / Iida | Team Taisan Advan | DNA |
| 9.11.2003 | Spanish GT Barcelona | 55 | | Wilson / Mountain | Philipe Gautheron | 39th |
| 16.11.2003 | 300 km Suzuka | 26 | | Yamaji / Nishizawa | Team Taisan Advan | 25th |
| 16.11.2003 | 300 km Suzuka | 911 | | Takamizawa / Sunako | 910 Racing | 32nd |