| series | Champcar complete |
| team | John Gregg |
| year | race | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| 1969 | Kent | 125 | Gregg Enterprises | Bob Gregg | | 19 | 11 | Vollstedt 65 [7] | Chevy 320 V8 | ||
| 1969 | Kent /b | 125 | Gregg Enterprises | Bob Gregg | | 11 | 16 | Vollstedt 65 [7] | Chevy 320 V8 | ||
| 1969 | Phoenix II | 125 | Gregg Enterprises | Bob Gregg | | DNS | Vollstedt 65 [7] | Chevy 320 V8 | |||
| 1969 | Riverside | 125 | Gregg Enterprises | Bob Gregg | | 30 | 13 | Vollstedt 65 [7] | Chevy 320 V8 | ||
| 1969 | Riverside | 125 | Gregg Enterprises | Dick Simon | | DNS | Vollstedt 65 [7] | Chevy 320 V8 | |||
| 1970 | Sears Point | 79 | Zeigler International | Dick Simon | | 13 | 6 | Vollstedt 65 [7] | Chevy 320 V8 |
