1972 / USAC National Championship Trail
Mar
18
1972 USAC Jimmy Bryan 150
Phoenix International Raceway
Apr
23
1972 USAC Trentonian 200
Trenton Speedway
May
27
1972 USAC Indianapolis 500
Indianapolis Motor Speedway
Jun
4
1972 USAC Rex Mays 150
The Milwaukee Mile Speedway
Jul
16
1972 USAC Brooklyn 200
Michigan International Speedway
Jul
29
1972 USAC Schaeffer 500
Pocono Raceway
Aug
13
1972 USAC Tony Bettenhausen 200
The Milwaukee Mile Speedway
Sep
3
1972 USAC California 500
Ontario Motor Speedway
Sep
24
1972 USAC Trenton 300
Trenton Speedway
Nov
4
1972 USAC Best Western 150
Phoenix International Raceway