1975 / USAC National Championship Trail
Mar
2
1975 USAC Ontario 100 (Race 1)
Ontario Motor Speedway
Mar
3
1975 USAC Ontario 100 (Race 2)
Ontario Motor Speedway
Mar
9
1975 USAC California 500
Ontario Motor Speedway
Mar
16
1975 USAC Bricklin 150
Phoenix International Raceway
Apr
6
1975 USAC Trenton 200
Trenton Speedway
May
25
1975 USAC Indianapolis 500
Indianapolis Motor Speedway
Jun
8
1975 USAC Rex Mays 150
The Milwaukee Mile Speedway
Jun
29
1975 USAC Schaefer 500
Pocono Raceway
Jul
20
1975 USAC Norton 200
Michigan International Speedway
Aug
17
1975 USAC Tony Bettenhausen 200
The Milwaukee Mile Speedway
Sep
13
1975 USAC Michigan Grand Prix 150
Michigan International Speedway
Sep
21
1975 USAC Trenton Times Twin 200
Trenton Speedway
Nov
9
1975 USAC Phoenix 150
Phoenix International Raceway