| 5.1.2003 | Daytona Test | 05 | Corvette | Metcalf / Carelli / Liniger / Conway / Curran | Team Re/Max Racing | 11th |
| 5.1.2003 | Daytona Test | 40 | Corvette C5 | Bell / Bell / Gregg | Derhaag Motorsports | 2nd |
| 26.1.2003 | Mil Milhas Brasileiras | 24 | Omega | Sanches / de Moraes Dantas | Big Power/Inec Cardăs/BioRitmo/Live Design/Inside/Jamanta Automóveis | 27th |
| 26.1.2003 | Mil Milhas Brasileiras | 25 | Vectra | Tigueis Batista / Gasko / Levy / Gasko | FK Operadora/Imagem Promo/Travel Racing | 13th |
| 26.1.2003 | Mil Milhas Brasileiras | 28 | Corsa | Garroux / Perez | Nilma Racing/Golden Cross/Staca | 57th |
| 26.1.2003 | Mil Milhas Brasileiras | 42 | Omega | Ferreira Júnior / Malta Neto / Badauy Weiss | Cool Max/Dupont/Art Mix | 17th |
| 26.1.2003 | Mil Milhas Brasileiras | 55 | Corsa | Telles / Silveira / Telles Fo. / Conill | Chamex/Fibra Forte/Taurus/Welt Motores | 65th |
| 26.1.2003 | Mil Milhas Brasileiras | 60 | Opala | Evaristo / Larica | Hiper Chip/Cinco Estrelas Competiçőes | 40th |
| 26.1.2003 | Mil Milhas Brasileiras | 63 | Omega | Barajas / Correra | Snowson Brasil/CKD Import/Trasnew/Disconal Seguros | 32nd |
| 26.1.2003 | Mil Milhas Brasileiras | 98 | Opala | Borlenghi / Delgado | Scheaffer/Bom Grille/Cesari/Platô Diesel/Q8 Motor Oil | 16th |
| 26.1.2003 | Mil Milhas Brasileiras | 666 | Corsa | Brein / Garcia / Paioli | SVLabs/Flash Car/Paioli Racing | 10th |
| 2.2.2003 | 24 h Daytona | 05 | Corvette | Conway / Metcalf / Carelli / Liniger | RE/MAX Racing | 27th |
| 2.2.2003 | 24 h Daytona | 09 | Corvette | Goad / Menard / Mears, Jr. / Briody | Flis Motorsports | 21st |
| 2.2.2003 | 24 h Daytona | 19 | Corvette | Puleo / Hitt / Dubler / Kennedy | ACP Motorsports | 26th |
| 2.2.2003 | 24 h Daytona | 25 | Corvette | Gigliotti / Nastasi / Peterson | LG Motorsports | DNA |
| 2.2.2003 | 24 h Daytona | 40 | Corvette C5 | Bell / Wilden / Bell / Gregg | Derhaag Motorsports | 30th |
| 2.2.2003 | 24 h Daytona | 46 | Corvette | Morgan / Norick / Pace / Morgan | Morgan-Dollar Motorsports | 10th |
| 2.2.2003 | 24 h Daytona | 55 | Corvette | Bruce Dewey | Dewey Motorsports | DNA |
| 1.3.2003 | 250 mile Homestead | 05 | | Carelli / Liniger | Team Re/Max Racing | DNA |
| 1.3.2003 | 250 mile Homestead | 18 | Camaro | Leavy / Bupp | Murray's Speed & Custom | 3rd |
| 1.3.2003 | 250 mile Homestead | 35 | | Gonzalez / Castro | Diman Racing | 4th |
| 1.3.2003 | 250 mile Homestead | 40 | Corvette C5 | Bell / Gregg | Derhaag Motorsports | DNA |
| 1.3.2003 | 250 mile Homestead | 46 | Corvette | Norick / Morgan | Morgan Dollar Motorsports | 11th |
| 1.3.2003 | 250 mile Homestead | 55 | Corvette | Bruce Dewey | Dewey Motorsports | DNA |
| 1.3.2003 | 250 mile Homestead | 76 | Corvette | Alderman / Lisa / Rosenblum | ICY/SL Motorsports | 13th |
| 15.3.2003 | 12 h Sebring | 3 | Corvette C5-R | Fellows / O'Connell / Fréon | Corvette Racing | 8th |
| 15.3.2003 | 12 h Sebring | 4 | Corvette C5-R | Gavin / Collins / Pilgrim | Corvette Racing | 26th |
| 15.3.2003 | 12 h Sebring | 5 | Corvette C5-RGT | Mazzuoccola / Lewis | MCR | DNA |
| 6.4.2003 | British GT Donington | 50 | Corvette C5 LMGT | Le Bas / Cole | Xero | 10th |
| 13.4.2003 | Belcar Zolder NRF | 5 | Corvette C5-R | Vannerum / Selleslagh | Selleslagh Racing Team | 9th |
| 20.4.2003 | British GT Snetterton | 50 | Corvette C5 LMGT | Le Bas / Cole | Xero Competition | 4th |
| 27.4.2003 | Belcar Zolder WSN | 5 | Corvette C5-R | Selleslagh / Vannerum | Selleslagh Racing Team | DNF |
| 27.4.2003 | Spanish GT Albacete | 8 | Corvette C5 | Llobet / Fernandez Roca | Saturn Motorsport | 12th/DNF |
| 3.5.2003 | 250 mile Phoenix | 18 | Camaro | Leavy | ChevyLeavy.com Racing Team | 19th |
| 3.5.2003 | 250 mile Phoenix | 19 | Camaro | Hitt / Shaffer / Robinson | ACP Motorsports | 17th |