| Racing Series That Held 1931 Seasons | |||
|---|---|---|---|
| Season | Series | # of Races | Champion(s) |
| 1931 | AAA Champ Car Series | 7 | Louis Schneider |
| 1931 | AAA Pacific Big Car Series | Ernie Triplett | |
| Racing Series That Held 1931 Seasons | |||
|---|---|---|---|
| Season | Series | # of Races | Champion(s) |
| 1931 | AAA Champ Car Series | 7 | Louis Schneider |
| 1931 | AAA Pacific Big Car Series | Ernie Triplett | |