Cycle World USA
- Rounds
- 3
- Seasons
- 3
- First
- 1976
- Latest
- 1978
Every Round
| Season | Date | Race | 450 Winner | 250 Winner |
|---|---|---|---|---|
| 1978 | Jun 18 | Cycle World USA National MX R8 | — | — |
| 1977 | Jul 23 | Cycle World USA National MX R13 | — | — |
| 1976 | Jul 18 | Cycle World USA National MX R13 | — | — |