| 27.7.2003 | 24 h Spa | 9 | 550 Maranello GTC | Peter / Babini / Derichebourg | JMB Racing | DNF |
| 27.7.2003 | 24 h Spa | 16 | 550 Maranello GTS | Kaufmann / Stépec / Grimm / Wieth | Wieth Racing | DNF |
| 27.7.2003 | 24 h Spa | 21 | 550 Maranello GTS | Gounon / Policand / Cadei | Care Racing | DNS |
| 27.7.2003 | 24 h Spa | 23 | 550 Maranello GTS | Biagi / Bobbi / Bonaldi / Livio | BMS Scuderia Italia | DNF |
| 27.7.2003 | 24 h Spa | 52 | 360 Modena GT | Bertolini / Pescatori / Terrien | JMB Racing | DNF |
| 27.7.2003 | 24 h Spa | 53 | 360 Modena N-GT | Alexander / de Simone / Burti | JMB Racing | 8th |
| 27.7.2003 | 24 h Spa | 68 | 360 Modena N-GT | Kutemann / Earle / Gosse / Pregliasco | Peter Kutemann | DNF |
| 27.7.2003 | 24 h Spa | 88 | 360 Modena GT | Mullen / Kirkaldy / Burt | Team Maranello Concessionaires | DNF |
| 27.7.2003 | 24 h Spa | 89 | 360 Modena N-GT | Davies / Smith / Turner | Team Maranello Concessionaires | 20th |
| 3.8.2003 | 3 h Trois-Rivières | 0 | 550 Maranello | Naspetti / Schiattarella | Team Olive Garden | 8th |
| 3.8.2003 | Special GT Cup Fuji | 11 | 360 Modena (GF-F360) | Matsuda / Tanaka | Team Gainer | 37th |
| 3.8.2003 | 3 h Trois-Rivières | 28 | 360 Modena N-GT | Pescatori / Grégoire | JMB Racing USA/Team Ferrari | 26th |
| 3.8.2003 | 3 h Trois-Rivières | 29 | 360 Modena N-GT | Ludovico Manfredi | JMB Racing USA/Team Ferrari | DNA |
| 3.8.2003 | 3 h Trois-Rivières | 35 | 360 Modena GT | Lazzaro / Kelleners | Risi Competizione | 12th |
| 3.8.2003 | British GT Rockingham | 48 | 360 Modena | McWhirter / Simms | Virgo Motorsport | 11th |
| 3.8.2003 | 3 h Trois-Rivières | 63 | 360 Modena GT | Lewis / Borcheller | Acemco Motorsports, LLC | 15th |
| 3.8.2003 | 3 h Trois-Rivières | 80 | 550 Maranello GTS | Magnussen / Brabham | Prodrive | 13th |
| 3.8.2003 | 3 h Trois-Rivières | 88 | 550 Maranello GTS | Enge / Kox | Prodrive | 20th |
| 8.8.2003 | 250 mile Watkins Glen | 07 | 360 Modena N-GT | Jennings / Black | Preferred Path | DNA |
| 8.8.2003 | 250 mile Watkins Glen | 33 | 360 Modena GT | Wagner / Martini | Scuderia Ferrari of Washington | 5th |
| 17.8.2003 | 2 h 45 min Mosport | 0 | 550 Maranello | Naspetti / Schiattarella | Team Olive Garden | 8th |
| 17.8.2003 | 2 h 45 min Mosport | 28 | 360 Modena N-GT | Alexander / Grégoire / Salazar | JMB Racing USA/Team Ferrari | 19th |
| 17.8.2003 | 2 h 45 min Mosport | 29 | 360 Modena N-GT | Gosse / Kutemann | JMB Racing USA/Team Ferrari | 25th |
| 17.8.2003 | SM GTR Gellerasen | 30 | 360 Modena | Kari Mäkinen | Kumho Euroracing | 4th/3rd |
| 17.8.2003 | 2 h 45 min Mosport | 32 | 360 Modena GT | Bertolini / Baldi | Ferri Competizione | 16th |
| 17.8.2003 | 2 h 45 min Mosport | 34 | 360 Modena GT | Mauro Baldi | Risi Competizione | DNA |
| 17.8.2003 | 2 h 45 min Mosport | 35 | 360 Modena GT | Kelleners / Lazzaro | Risi Competizione | 10th |
| 17.8.2003 | 2 h 45 min Mosport | 63 | 360 Modena GT | Lewis / Borcheller | Acemco Motorsports, LLC | 17th |
| 17.8.2003 | 2 h 45 min Mosport | 80 | 550 Maranello GTS | Magnussen / Brabham | Prodrive | 6th |
| 17.8.2003 | British GT Thruxton | 88 | 360 Modena | Mullen / Kirkaldy | Veloqx Motorsport | 2nd |
| 17.8.2003 | 2 h 45 min Mosport | 88 | 550 Maranello GTS | Enge / Kox | Prodrive | 5th |
| 24.8.2003 | 2 h 45 min Road America | 0 | 550 Maranello | Naspetti / Schiattarella | Team Olive Garden | 8th |
| 24.8.2003 | 2 h 45 min Road America | 28 | 360 Modena N-GT | Alexander / Grégoire | JMB Racing USA/Team Ferrari | 35th |
| 24.8.2003 | 2 h 45 min Road America | 29 | 360 Modena N-GT | Shearer / Kutemann | JMB Racing USA/Team Ferrari | 34th |
| 24.8.2003 | 2 h 45 min Road America | 35 | 360 Modena GT | Kelleners / Lazzaro | Risi Competizione | 30th |
| 24.8.2003 | 2 h 45 min Road America | 63 | 360 Modena GT | Lewis / Borcheller | Acemco Motorsports, LLC | 21st |
| 24.8.2003 | 2 h 45 min Road America | 80 | 550 Maranello GTS | Magnussen / Brabham | Prodrive | 4th |
| 24.8.2003 | 2 h 45 min Road America | 88 | 550 Maranello GTS | Kox / Enge | Prodrive | 6th |
| 25.8.2003 | 1000 km Suzuka | 11 | 360 Modena (GF-F360) | Matsuda / Tanaka | Team Gainer | DNF |
| 31.8.2003 | 1000 km Spa | 3 | 333 SP | Giovanni Lavaggi | GLV Racing | DNA |
| 31.8.2003 | 1000 km Spa | 3 | F40 | Jones / Sebastiani | Richard Jones | DNA |
| 31.8.2003 | SM GTR Knutstorp | 30 | 360 Modena | Kari Mäkinen | Kumho Euroracing | 4th/4th |
| 31.8.2003 | 1000 km Spa | 120 | 360 Modena GT | Adams / Attard / Brady / Ward | Steven Brady | 17th |
| 31.8.2003 | 1000 km Spa | 142 | 360 Modena Challenge | Robinson / Lester / Greasley | Hector Lester | DNF |
| 7.9.2003 | 2 h 45 min Laguna Seca | 0 | 550 Maranello | Naspetti / Auberlen | Team Olive Garden | 10th |
| 7.9.2003 | 500 km Anderstorp | 9 | 550 Maranello GTC | Babini / Peter | JMB Racing | 19th |
| 7.9.2003 | 500 km Anderstorp | 10 | 550 Maranello GTC | Pescatori / Derichebourg | JMB Racing | DNF |
| 7.9.2003 | 500 km Anderstorp | 16 | 550 Maranello GTS | Kaufmann / Ring | Wieth Racing | 20th |
| 7.9.2003 | 500 km Anderstorp | 21 | 550 Maranello GTS | Bryner / Calderari / Livio | Care Racing | 5th |
| 7.9.2003 | 500 km Anderstorp | 22 | 550 Maranello GTS | Gollin / Cappellari | BMS Scuderia Italia | 4th |
| 7.9.2003 | 500 km Anderstorp | 23 | 550 Maranello GTS | Bobbi / Biagi | BMS Scuderia Italia | DNF |
| 7.9.2003 | 2 h 45 min Laguna Seca | 28 | 360 Modena N-GT | Alexander / Grégoire / Salazar | JMB Racing USA/Team Ferrari | 18th |
| 7.9.2003 | 2 h 45 min Laguna Seca | 29 | 360 Modena N-GT | Earle / Neuhaus | JMB Racing USA/Team Ferrari | 25th |
| 7.9.2003 | 2 h 45 min Laguna Seca | 35 | 360 Modena GT | Lazzaro / Kelleners | Risi Competizione | 13th |
| 7.9.2003 | 500 km Anderstorp | 52 | 360 Modena GT | Bertolini / de Simone | JMB Racing | 17th |
| 7.9.2003 | 500 km Anderstorp | 53 | 360 Modena N-GT | Kutemann / Gosse | JMB Racing | 18th |
| 7.9.2003 | 500 km Anderstorp | 57 | 360 Modena GT | Pergl / Janiš | Menx | 13th |
| 7.9.2003 | 2 h 45 min Laguna Seca | 63 | 360 Modena GT | Lewis / Borcheller | Acemco Motorsports, LLC | 19th |
| 7.9.2003 | 2 h 45 min Laguna Seca | 80 | 550 Maranello GTS | Magnussen / Brabham | Prodrive | 6th |
| 7.9.2003 | 2 h 45 min Laguna Seca | 88 | 550 Maranello GTS | Enge / Kox | Prodrive | DQ |
| 7.9.2003 | 500 km Anderstorp | 88 | 360 Modena N-GT | Turner / Davies | Team Maranello Concessionaires | 9th |
| 7.9.2003 | 500 km Anderstorp | 89 | 360 Modena GT | Mullen / Burt | Team Maranello Concessionaires | DNF |
| 14.9.2003 | Motegi GT | 11 | 360 Modena (GF-F360) | Matsuda / Tanaka | Team Gainer | DNF |
| 14.9.2003 | Spanish GT Valencia | 21 | 360 Modena Challenge | Cerqueda / Pérez-Sala | Gabord Competicion | 12th/8th |
| 14.9.2003 | Spanish GT Valencia | 22 | 360 Modena Challenge | Saez-Merino / Ugalde Mortal | Circuito Comunidad Valenciana | 8th/12th |
| 14.9.2003 | Spanish GT Valencia | 23 | 360 Modena Challenge | Puig / Bosch | Gabord Competicion | 11th/15th |
| 14.9.2003 | Spanish GT Valencia | 24 | 360 Modena Challenge | Watson / De Mollinedo | Club Motor Circuito De Jerez | 15th/DNF |
| 14.9.2003 | Spanish GT Valencia | 25 | 360 Modena Challenge | Goiburu / Costa | Antonio Cano | 9th/7th |
| 21.9.2003 | 500 km Oschersleben | 9 | 550 Maranello GTC | Babini / Peter | JMB Racing | DNS |
| 21.9.2003 | 500 km Oschersleben | 10 | 550 Maranello GTC | Derichebourg / Pescatori | JMB Racing | 16th |
| 21.9.2003 | 500 km Oschersleben | 16 | 550 Maranello GTS | Kaufmann / Biglieri / Grimm | Wieth Racing | 12th |
| 21.9.2003 | 500 km Oschersleben | 21 | 550 Maranello GTS | Bryner / Calderari / Livio | Care Racing | 3rd |
| 21.9.2003 | 500 km Oschersleben | 22 | 550 Maranello GTS | Gollin / Cappellari | BMS Scuderia Italia | DNF |
| 21.9.2003 | 500 km Oschersleben | 23 | 550 Maranello GTS | Biagi / Bobbi | BMS Scuderia Italia | 1st |
| 21.9.2003 | 6 h Mont-Tremblant | 33 | 360 Modena GT | Wagner / Martini | Scuderia Ferrari of Washington | 3rd |
| 21.9.2003 | 500 km Oschersleben | 52 | 360 Modena GT | Bertolini / de Simone | JMB Racing | 5th |
| 21.9.2003 | Italian GT Vallelunga | 52 | 360 Modena N-GT | Monti / Montermini | Mastercar SRL | 3rd/2nd |
| 21.9.2003 | 500 km Oschersleben | 53 | 360 Modena N-GT | Kutemann / Gosse | JMB Racing | DNF |
| 21.9.2003 | Italian GT Vallelunga | 57 | 360 Modena | Kessel / Chiesa | Loris Kessel Racing | 4th/11th |
| 21.9.2003 | 500 km Oschersleben | 57 | 360 Modena GT | Enge / Pergl | Menx | 18th |
| 21.9.2003 | 500 km Oschersleben | 58 | 360 Modena GT | | Auto Palace | DNA |
| 21.9.2003 | Italian GT Vallelunga | 83 | 360 Modena | Bortignon / Bertoli | Mastercar SRL | 8th/5th |
| 21.9.2003 | 6 h Mont-Tremblant | 86 | 360 Modena GT | Stroll | Falcon Racing | 21st |
| 21.9.2003 | 500 km Oschersleben | 88 | 360 Modena N-GT | Turner / Davies | Team Maranello Concessionaires | 6th |
| 21.9.2003 | 500 km Oschersleben | 89 | 360 Modena GT | Burt / Mullen | Team Maranello Concessionaires | 7th |
| 21.9.2003 | Italian GT Vallelunga | 202 | F355 GT | Merzario / Emiliani | Arturo Merzario | 10th/DNF |
| 21.9.2003 | Italian GT Vallelunga | 203 | F355 GT | Sperati / Piacentini | Roberto Sperati | 11th/DNF |
| 27.9.2003 | 2 h 45 min Miami | 0 | 550 Maranello | Naspetti / Schiattarella | Team Olive Garden | 15th |
| 27.9.2003 | 2 h 45 min Miami | 28 | 360 Modena N-GT | Grégoire / Salazar | JMB Racing USA | 14th |
| 27.9.2003 | 2 h 45 min Miami | 29 | 360 Modena N-GT | Earle / Neuhaus | JMB Racing USA | 25th |
| 27.9.2003 | 2 h 45 min Miami | 35 | 360 Modena GT | Kelleners / Lazzaro | Risi Competizione | 9th |
| 27.9.2003 | 2 h 45 min Miami | 63 | 360 Modena GT | Lewis / Borcheller | Acemco Motorsports, LLC | 18th |
| 27.9.2003 | 2 h 45 min Miami | 80 | 550 Maranello GTS | Turner / Brabham | Prodrive | 4th |
| 27.9.2003 | 2 h 45 min Miami | 88 | 550 Maranello GTS | Kox / Enge | Prodrive | 5th |
| 28.9.2003 | FFSA GT Lédenon | 28 | 360 Modena GT | Hiesse / Caly | Auto Palace | 18th/9th |
| 28.9.2003 | SM GTR Mantorp Park | 30 | 360 Modena | Kari Mäkinen | Kumho Euroracing | 7th/DNF |
| 28.9.2003 | FFSA GT Lédenon | 33 | 550 Maranello | Vannelet / Lesoudier | XL Racing | 14th/16th |
| 28.9.2003 | British GT Brands Hatch | 35 | 360 Modena | Adams / Attard | Damax | 12th |
| 28.9.2003 | British GT Brands Hatch | 42 | 360 Modena | Lester / Robinson | Glenvarigill | 10th |
| 28.9.2003 | British GT Brands Hatch | 48 | 360 Modena | McWhirter / Simms | Virgo Motorsport | 14th |