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| Venue | Ontario Motor Speedway |
|---|---|
| First race | 1970 |
| Last race | 1980 |
| Distance | 500 mi (800 km) |
| Laps | 200 |
| Most wins (driver) | Bobby Unser (4) |
| Most wins (team) | Eagle (3) |
| Most wins (manufacturer) | Chassis: All American Racers (3) Engine: Offenhauser (4) Cosworth (4) |
The California 500 was a USAC, and later CART, race held at Ontario Motor Speedway in Ontario, California. The event represented a continuous lineage of open wheel oval racing in Southern California that dates back to 1970.