Lake Whitney, TX
Lake Whitney Cycle Ranch
- June 19, 1983
- April 18, 1982
- April 12, 1981
- May 28, 1978
- July 17, 1977
- June 15, 1975
- August 12, 1973
- June 17, 1973
All-Time Wins
450 Class
| Rider | Hometown | Wins |
|---|---|---|
 Kent Howerton |  San Antonio, TX | 2 |
 Gary Jones | Hacienda Heights, CA | 1 |
 Brad Lackey | Lafayette, CA | 1 |
| Tim Hart | Torrance, CA | 1 |
| Pierre Karsmakers |  The Netherlands | 1 |
250 Class
| Rider | Hometown | Wins |
|---|---|---|
 Mark Barnett | Bridgeview, IL | 1 |
 Jeff Ward | Mission Viejo, CA | 1 |
 Ron Lechien | El Cajon, CA | 1 |