Cycle World USA
July 23 1977
500MX Results
| Rider | Hometown | Motos | ||
|---|---|---|---|---|
| 1 |  Marty Smith | San Diego, CA  | 1 - 2 |  |
| 2 | Tommy Croft | San Diego, CA | 2 - 6 | |
| 3 | Tony DiStefano | Bristol, PA | 6 - 4 |  |
| 4 | Chuck Sun | Sherwood, OR | 8 - 5 |  |
| 5 | Gary Semics | Lisbon, OH | 18 - 1 |  |
| 6 |  Bob Hannah | Whittier, CA | 13 - 3 |  |
| 7 |  Jim Pomeroy | Yakima, WA | 7 - 9 | |
| 8 | Rex Staten | Fontana, CA | 9 - 10 | Harley-Davidson |
| 9 | Rick Burgett | Sandy, OR | 14 - 7 | |
| 10 | Pierre Karsmakers | The Netherlands  | 3 | |
| 11 |  Kent Howerton | San Antonio, TX | 4 | |
| 12 | Denny Swartz | Reno, OH | 10 - 15 | Maico |
| 13 | Steve Stackable | Austin, TX | 5 | Maico |
| 14 | Rich Eierstedt | Norwalk, CA | - 8 | Bultaco |
| 15 | Parry Klassen | Reedley, CA | 17 - 13 | |
| 16 | Pat Moroney | Newburgh, NY | - 11 | |
| 17 | Mickey Boone | Winston Salem, NC | 16 - 16 | |
| 18 | Wayne Boyer | Poway, CA | 11 | |
| 19 | Gaylon Mosier | Garden Grove, CA | - 12 | Maico |
| 20 | Danny Laporte | Yucca Valley, CA | 12 | |
| 21 | Greg Theiss | Omaha, NE | 20 - 14 | |
| 22 | Jimmy Ellis | Cobalt, CT | 15 - 19 | Can-am |
| 23 |  Gary Jones | Hacienda Heights, CA | - 17 | Ammex/Islo |
| 24 | Koji Masuda | Japan  | - 18 | |
| 25 | Roger Brown | New Braunfels, TX | 19 | Penton |
| 26 | John Borders | Valdosta, GA | - 20 | |