1973 California 500
| Race details | |
|---|---|
| Race 11 of 16 in the 1973 USAC Championship Car season | |
| Date | September 2, 1973 |
| Official name | 1973 California 500 |
| Location | Ontario Motor Speedway, Ontario, California, United States |
| Course | Permanent racing facility 2.500 mi / 4.023 km |
| Distance | 200 laps 500.000 mi / 804.672 km |
| Pole position | |
| Driver | Peter Revson (McLaren) |
| Time | 200.089 mph (322.012 km/h) |
| Podium | |
| First | Wally Dallenbach Sr. (Andy Granatelli) |
| Second | Mario Andretti (Vel's Parnelli Jones Racing) |
| Third | Mike Mosley (Ralph Wilke) |
The 1973 California 500, the fourth running of the event, was held at the Ontario Motor Speedway in Ontario, California, on Sunday, September 2, 1973. The event was race number 11 of 16 in the 1973 USAC Championship Car season. The race was won by Wally Dallenbach Sr., his only 500-mile Indy Car victory.