| Event Date | Age | Venue | Series | Class | Heat | LCQ | Main | Brand | Bike No. |
|---|
| 1975-03-01 | 5.059 | Dallas | sx | 250T | | | 19 | Bultaco | | | 1975-03-15 | 5.073 | Houston | sx | 250T | | | 14 | Bultaco | |
| Event Date | Age | Venue | Series | Class | Moto 1 | Moto 2 | Overall | Brand | Bike No. |
|---|
| 1975-04-06 | 5.095 | Hangtown | mx | 250T | | | 8 | Bultaco | |
| Event Date | Age | Venue | Series | Class | Heat | LCQ | Main | Brand | Bike No. |
|---|
| 1976-03-13 | 6.071 | Houston | sx | 250T | | | | Bultaco | | | 1976-03-20 | 6.078 | Dallas | sx | 250T | | | | Bultaco | |
| Event Date | Age | Venue | Series | Class | Heat | LCQ | Main | Brand | Bike No. |
|---|
| 1978-02-18 | 8.048 | Seattle | sx | 250T | | | | Yamaha | |
| Event Date | Age | Venue | Series | Class | Heat | LCQ | Main | Brand | Bike No. |
|---|
| 1979-01-28 | 9.027 | Oakland | sx | 250T | 3 | | 8 | Yamaha | | | 1979-02-09 | 9.039 | Seattle | sx | 250T | 4 | | 11 | | | | 1979-02-10 | 9.040 | Seattle | sx | 250T | 3 | | 13 | Yamaha | |
| Event Date | Age | Venue | Series | Class | Moto 1 | Moto 2 | Overall | Brand | Bike No. |
|---|
| 1979-03-03 | 9.061 | Fulton County Stadium | mx | 250T | | | 0 | Yamaha | |
| Event Date | Age | Venue | Series | Class | Heat | LCQ | Main | Brand | Bike No. |
|---|
| 1979-11-17 | 9.320 | Anaheim | sx | 250T | | | | Yamaha | |
|