Dyson Racing's overall win at Sonoma Raceway was the first time in ALMS history that the overall win was captured by a vehicle not from the LMP900 class.
Little was changed between the 2002 and 2003 schedules; the Grand Prix of Washington, D. C. and Mid-Ohio Sports Car Course did not return, but both were instead replaced by the return of the Grand Prix of Atlanta at Road Atlanta. The Grand Prix of Mexico was originally scheduled for April 6 at the Autodromo Hermanos Rodriguez but was canceled
Rnd | Circuit | LMP900 Winning Team | LMP675 Winning Team | GTS Winning Team | GT Winning Team | Results |
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LMP900 Winning Drivers | LMP675 Winning Drivers | GTS Winning Drivers | GT Winning Drivers |
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1 | Sebring | {{flagicon>Germany}} #1 Infineon Team Joest | United States}} #20 Dyson Racing | United States}} #3 Corvette Racing | United States}} #23 Alex Job Racing | Results |
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{{flagicon>Germany}} Frank Biela {{flagicon|Germany}} Marco Werner {{flagicon|Austria}} Philipp Peter | Belgium}} Didier de Radiguès {{flagicon|United States}} Chad Block {{flagicon|United States}} Chris Dyson | Canada}} Ron Fellows {{flagicon|United States}} Johnny O'Connell {{flagicon|France}} Franck Fréon | Germany}} Sascha Maassen {{flagicon|Germany}} Lucas Luhr |
2 | Road Atlanta | {{flagicon>United States}} #38 ADT Champion Racing | United States}} #37 Intersport Racing | United States}} #4 Corvette Racing | United States}} #24 Alex Job Racing | Results |
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{{flagicon>Finland}} JJ Lehto {{flagicon|United Kingdom}} Johnny Herbert | United States}} Duncan Dayton {{flagicon|United States}} Jon Field | United States}} Kelly Collins {{flagicon|United Kingdom}} Oliver Gavin | Germany}} Jörg Bergmeister {{flagicon|Germany}} Timo Bernhard |
3 | Sonoma | Germany}} #1 Infineon Team Joest | {{flagicon>United States}} #16 Dyson Racing | United States}} #3 Corvette Racing | United States}} #23 Alex Job Racing | Results |
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Germany}} Frank Biela {{flagicon|Germany}} Marco Werner | {{flagicon>United States}} Butch Leitzinger {{flagicon|United Kingdom}} James Weaver | Canada}} Ron Fellows {{flagicon|United States}} Johnny O'Connell | Germany}} Sascha Maassen {{flagicon|Germany}} Lucas Luhr |
4 | Trois-Rivières | {{flagicon>Germany}} #1 Infineon Team Joest | United States}} #37 Intersport Racing | United States}} #4 Corvette Racing | United States}} #23 Alex Job Racing | Results |
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{{flagicon>Germany}} Frank Biela {{flagicon|Germany}} Marco Werner | United States}} Jon Field {{flagicon|United States}} Duncan Dayton | United States}} Kelly Collins {{flagicon|United Kingdom}} Oliver Gavin | Germany}} Sascha Maassen {{flagicon|Germany}} Lucas Luhr |
5 | Mosport | {{flagicon>Germany}} #1 Infineon Team Joest | United States}} #20 Dyson Racing | United States}} #3 Corvette Racing | United States}} #24 Alex Job Racing | Results |
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{{flagicon>Germany}} Frank Biela {{flagicon|Germany}} Marco Werner | United Kingdom}} Andy Wallace {{flagicon|United States}} Chris Dyson | Canada}} Ron Fellows {{flagicon|United States}} Johnny O'Connell | Germany}} Jörg Bergmeister {{flagicon|Germany}} Timo Bernhard |
6 | Road America | {{flagicon>United States}} #38 ADT Champion Racing | United States}} #20 Dyson Racing | United Kingdom}} #80 Prodrive | United States}} #31 Petersen/White Lightning | Results |
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{{flagicon>Finland}} JJ Lehto {{flagicon|United Kingdom}} Johnny Herbert | United Kingdom}} Andy Wallace {{flagicon|United States}} Chris Dyson | Denmark}} Jan Magnussen {{flagicon|Australia}} David Brabham | United States}} Craig Stanton {{flagicon|United Kingdom}} Johnny Mowlem |
7 | Laguna Seca | {{flagicon>Germany}} #1 Infineon Team Joest | United States}} #16 Dyson Racing | United Kingdom}} #80 Prodrive | United States}} #23 Alex Job Racing | Results |
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{{flagicon>Germany}} Frank Biela {{flagicon|Germany}} Marco Werner | United States}} Butch Leitzinger {{flagicon|United Kingdom}} James Weaver | Denmark}} Jan Magnussen {{flagicon|Australia}} David Brabham | Germany}} Sascha Maassen {{flagicon|Germany}} Lucas Luhr |
8 | Miami | {{flagicon>United States}} #38 ADT Champion Racing | United States}} #20 Dyson Racing | United Kingdom}} #80 Prodrive | United States}} #23 Alex Job Racing | Results |
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{{flagicon>Finland}} JJ Lehto {{flagicon|United Kingdom}} Johnny Herbert | United Kingdom}} Andy Wallace {{flagicon|United States}} Chris Dyson | United Kingdom}} Darren Turner {{flagicon|Australia}} David Brabham | Germany}} Sascha Maassen {{flagicon|Germany}} Lucas Luhr |
9 | Road Atlanta | {{flagicon>United States}} #38 ADT Champion Racing | United States}} #37 Intersport Racing | United Kingdom}} #88 Prodrive | United States}} #24 Alex Job Racing | Results |
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{{flagicon>Finland}} JJ Lehto {{flagicon|United Kingdom}} Johnny Herbert | United States}} Jon Field {{flagicon|United States}} Clint Field {{flagicon|United States}} Larry Connor | Switzerland}} Alain Menu {{flagicon|Czech Republic}} Tomáš Enge {{flagicon|Netherlands}} Peter Kox | Germany}} Jörg Bergmeister {{flagicon|Germany}} Timo Bernhard {{flagicon|France}} Romain Dumas |
Exceptions being for the 12 Hours of Sebring and Petit Le Mans which award the top 10 finishers in the following order:
Cars failing to complete 70% of the winner's distance are not awarded points. Teams only score the points of their highest finishing entry in each race.