Rio Bravo MX Park
November 4 1973
500MX Results
| Rider | Hometown | ||
|---|---|---|---|
| 1 |  Jim Weinert | Middletown, NY  |  |
| 2 |  Gary Jones | Hacienda Heights, CA | Maico |
| 3 | Rich Thorwaldson | Cerritos, CA |  |
| 4 | Gary Semics | Lisbon, OH |  |
| 5 |  Kent Howerton | San Antonio, TX | CZ |
| 6 | Mike Hartwig | Hadley, MI | |
| 7 | Marty Tripes | Santee, CA |  |
| 8 | Tim Hart | Torrance, CA |  |
| 9 | Peter Lamppu | Los Angeles, CA | |
| 10 | Gary Chaplin | Cayucos, CA | |
| 11 |  Brad Lackey | Lafayette, CA | |
| 12 | Mark Blackwell | Mission Viejo, CA | |
| 13 | Mike Runyard | West Covina, CA | |
| 14 | Jim West | Pasadena, CA | |
| 15 | Pierre Karsmakers | The Netherlands  | |
| 16 | Robert Harris | Windsor, NY | Bultaco |
| 17 | Jim Cooke | Huntington Beach, CA | |
| 18 | John DeSoto | Honolulu, HI | CZ |
| 19 | Jack O'Leary | Austin, TX | |
| 20 | Sonny DeFeo | Port Washington, NY | Maico |