1970 / USAC National Championship Trail
Mar
28
1970 USAC Phoenix 150
Phoenix International Raceway
Apr
4
1970 USAC William Murray 150
Sears Point Raceway
Apr
26
1970 USAC Trenton 200
Trenton Speedway
May
30
1970 USAC Indianapolis 500
Indianapolis Motor Speedway
Jun
7
1970 USAC Rex Mays 150
The Milwaukee Mile Speedway
Jun
14
1970 USAC Langhorne 150
Langhorne Speedway
Jun
28
1970 USAC Rocky Mountain 150
Castle Rock Speedway
Jul
4
1970 USAC Michigan Twins 200
Michigan International Speedway
Jul
26
1970 USAC Indianapolis 150
Indianapolis Motor Speedway
Aug
22
1970 USAC Tony Bettenhausen 100
Springfield Raceway
Aug
23
1970 USAC Tony Bettenhausen 200
The Milwaukee Mile Speedway
Sep
6
1970 USAC California 500
Ontario Motor Speedway
Sep
7
1970 USAC Bill Hays 100
DuQuoin State Fairgrounds
Sep
12
1970 USAC Hoosier Hundred
Indiana State Fairgrounds
Sep
19
1970 USAC Sedalia 100
Missouri State Fair Speedway
Oct
3
1970 USAC Trenton 300
Trenton Speedway
Oct
4
1970 USAC Sacramento 100
Sacramento Raceway Park
Nov
21
1970 USAC Bobby Ball 150
Phoenix International Raceway