1973 Ontario Indycars
- Sunday, August 26, 1973
- California 500 - First Qualifying Race
- USAC National Championship
Circuit - Ontario
Country
United States
Location
Ontario, California
Type
Paved oval
Length
2.5 (Miles)
×
Country
United States
Location
Ontario, California
Type
Paved oval
Length
2.5 (Miles)