1978 / USAC National Championship Trail
Mar
18
1978 USAC Jimmy Bryan 150
Phoenix International Raceway
Mar
26
1978 USAC Datsun Twin 200
Ontario Motor Speedway
Apr
15
1978 USAC Coors 200
Texas World Speedway
Apr
23
1978 USAC Gabriel 200
Trenton Speedway
May
28
1978 USAC Indianapolis 500
Indianapolis Motor Speedway
Jun
11
1978 USAC Molson Diamond Indy 300
Mosport Park
Jun
18
1978 USAC Rex Mays 150
The Milwaukee Mile Speedway
Jun
25
1978 USAC Schaefer 500
Pocono Raceway
Jul
16
1978 USAC Norton Twin 200
Michigan International Speedway
Jul
23
1978 USAC Gould Twin Dixie 150
Atlanta Motor Speedway
Aug
6
1978 USAC Texas Grand Prix 200
Texas World Speedway
Aug
20
1978 USAC Tony Bettenhausen 200
The Milwaukee Mile Speedway
Sep
3
1978 USAC California 500
Ontario Motor Speedway
Sep
16
1978 USAC Gould Grand Prix 150
Michigan International Speedway
Sep
23
1978 USAC Machinists Union 150
Trenton Speedway
Oct
1
1978 USAC Daily Express Silverstone
Silverstone Circuit
Oct
7
1978 USAC Daily Mail Brands Hatch
Brands Hatch Club Circuit
Oct
28
1978 USAC Bobby Ball 150
Phoenix International Raceway