1991 AMA Pro Motocross Championship Unadilla Motocross: 500MX Results
October 13, 1991
500MX Results
| Rider | Hometown | Motos | Bike | |
|---|---|---|---|---|
| 1 |  Jeff Ward | Mission Viejo, CA  | 1 - 1 | Kawasaki |
| 2 |  Jean Michel Bayle | France  | 2 - 5 | Honda |
| 3 | Damon Bradshaw | Charlotte, NC | 6 - 3 | Yamaha |
| 4 | Mike Fisher | Santee, CA | 4 - 6 | KTM |
| 5 | Shaun Kalos | Litchfield Park, AZ | 3 - 8 | Kawasaki |
| 6 | Jeff Stanton | Sherwood, MI | 13 - 2 | Honda |
| 7 | Todd DeHoop | Hudsonville, MI | 11 - 4 | Kawasaki |
| 8 | Kurt McMillen | Wappingers Falls, NY | 8 - 7 | Honda |
| 9 |  Ron Lechien | El Cajon, CA | 7 - 10 | Kawasaki |
| 10 | Ray Sommo | Capistrano Beach, CA | 9 - 9 | Kawasaki |
| 11 | Tom Carson | Hopedale, OH | 10 - 12 | Kawasaki |
| 12 | Doug Dubach | Costa Mesa, CA | 5 - 24 | Yamaha |
| 13 | Bruce Stratton | Earlville, NY | 17 - 14 | Yamaha |
| 14 | Rich Taylor | Ketchum, ID | 14 - 17 | Honda |
| 15 | Fred Andrews | North Canton, OH | 23 - 11 | Kawasaki |
| 16 | Keith S Johnson | Pembroke, MA | 15 - 18 | KTM |
| 17 | Brian Carroll | Vineland, NJ | 12 - 27 | Honda |
| 18 | Carl Vaillancourt | Drummondville, QC  | 21 - 13 | Honda |
| 19 | Earl May | Tallahassee, FL | 27 - 15 | Honda |
| 20 | Kip Sandell | Sedalia, CO | 25 - 16 | Yamaha |
| 21 | Keith Bowen | Pontiac, MI | 16 - 38 | KTM |
| 22 | James Kapitan | Colts Neck, NJ | 18 - 20 | Suzuki |
| 23 | Bill Wallin | Barrie, ON | 22 - 19 | Honda |
| 24 | Michael Harnden | Oshama, ON | 19 - 26 | KTM |
| 25 | Mike Roth | Worth, IL | 20 - 24 | Honda |
