Date | Overall Winner(s) | Entrant | Car | Distance/Duration | Race Title | Report |
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IMSA GT Championship |
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1976 | Jim Busby | Busby Racing | Porsche Carrera | 100 miles (160 km) | Coca-Cola Bottler's Weekend | report |
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1977 | David Hobbs | McLaren North America | BMW 320i Turbo | 100 miles (160 km) | | report |
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1978 | David Hobbs | McLaren North America | BMW 320i | 100 miles (160 km) | 3rd Annual Camel GT Challenge | report |
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1979 | Peter Gregg | Peter Gregg | Porsche 935/78 | 100 miles (160 km) | Sprite Grand Prix | report |
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1980 | John Fitzpatrick | Dick Barbour Racing | Porsche 935 K3/80 | 100 miles (160 km) | Datsun's Golden State Challenge Grand Prix | report |
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1981 | Klaus Ludwig | Team Zakspeed-Roush | Ford Mustang Turbo | 100 miles (160 km) | Datsun Camel GT | report |
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1982 | Klaus Ludwig | Team Zakspeed-Roush | Ford Mustang Turbo | 100 miles (160 km) | Sears Point Camel GT | report |
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1983 | Al Holbert Jim Trueman | Holbert Racing | March 83G-Porsche | 3 hours | Ford California Camel GT | report |
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1984 | Bill Whittington | Blue Thunder Racing Team | March 83G-Chevrolet | 100 miles (160 km) | Ford California Camel GT | report |
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1985 | Bob Wollek | Bayside Disposal Racing | Porsche 962 | 300 km (190 mi) | Ford California Grand Prix | report |
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1986 | Rob Dyson Price Cobb | Dyson Racing | Porsche 962 | 300 km (190 mi) | Ford California Grand Prix | report |
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1987 | Jochen Mass | Bayside Motorsports | Porsche 962 | 300 km (190 mi) | Ford California Grand Prix | report |
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1988 | Geoff Brabham | Electramotive Engineering | Nissan GTP ZX-T | 300 km (190 mi) | Lincoln-Mercury California Grand Prix | report |
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1989 | Geoff Brabham | Electramotive Engineering | Nissan GTP ZX-T | 300 km (190 mi) | Lincoln-Mercury California Grand Prix | report |
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1990 | Juan Manuel Fangio II | All American Racers | Eagle HF89-Toyota | 300 km (190 mi) | California Camel Grand Prix | report |
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1991-1994: Not held |
1995 | James Weaver | Dyson Racing | Riley & Scott Mk III-Ford | 1 hour, 45 minutes | Apple Computer, Inc. presents the California Grand Prix | report |
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1996 | Wayne Taylor Scott Sharp | Doyle Racing | Riley & Scott Mk III-Oldsmobile | 3 hours | Toshiba California Grand Prix | report |
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1997 | Andy Wallace James Weaver | Dyson Racing | Riley & Scott Mk III-Ford | 2 hours | California Grand Prix | report |
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1998: Not held |
American Le Mans Series |
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1999 | JJ Lehto Steve Soper | BMW Motorsport | BMW V12 LMR | 2 hours, 45 minutes | Grand Prix of Sonoma presented by Toshiba | report |
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2000 | Allan McNish Rinaldo Capello | Audi Sport North America | Audi R8 | 2 hours, 45 minutes | Grand Prix of Sonoma | report |
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2001 | Rinaldo Capello Tom Kristensen | Audi Sport North America | Audi R8 | 2 hours, 45 minutes | X-Factor Grand Prix of Sonoma | report |
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2002 | David Brabham Jan Magnussen | Panoz Motor Sports | Panoz LMP 01 | 2 hours, 45 minutes | Grand Prix of Sonoma presented by Foster's Lager | report |
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2003 | Butch Leitzinger James Weaver | Dyson Racing | Lola EX257-AER | 2 hours, 45 minutes | Infineon Grand Prix of Sonoma | report |
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2004 | JJ Lehto Marco Werner | ADT Champion Racing | Audi R8 | 2 hours, 45 minutes | Infineon Grand Prix of Sonoma | report |
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2005 | Frank Biela Emanuele Pirro | ADT Champion Racing | Audi R8 | 2 hours, 45 minutes | Infineon Grand Prix of Sonoma | report |
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Rolex Sports Car Series |
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2006 | Scott Pruett Luis Díaz | Chip Ganassi Racing with Felix Sabates | Riley Mk XI-Lexus | 400 km (250 mi) | | report |
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2007* | Jon Fogarty Alex Gurney | GAINSCO/Bob Stallings Racing | Riley Mk XI-Pontiac | 400 km (250 mi) | Armed Forces Grand-Am 250 | report |
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2008* | Max Angelelli Michael Valiante | SunTrust Racing | Dallara DP01-Pontiac | 250 miles (400 km) | Armed Forces 250 | report |
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