1981 AMA Pro Motocross Championship Broome-Tioga Sports Center: 500MX Results
June 28, 1981
- Monster Energy AMA Supercross Championship
- AMA Pro Motocross Championship
- SuperMotocross World Championship
- FIM Motocross World Championship
- Progressive GNCC Racing
- Motocross of Nations
- FIM World Supercross Championship
- Australian Supercross Championship
- Women's Motocross Championship
- Monster Energy Cup
500MX Results
| Rider | Hometown | Motos | Bike | |
|---|---|---|---|---|
| 1 | | Sherwood, OR | 2 - 1 | Honda |
| 2 | | Lakewood, CA | 3 - 5 | Yamaha |
| 3 | | Troy, MI | 6 - 3 | Maico |
| 4 | | Santa Cruz, CA | 4 - 6 | Husqvarna |
| 5 | | Yucca Valley, CA | 12 - 4 | Honda |
| 6 | | Colorado Springs, CO | 7 - 8 | Yamaha |
| 7 | | Girard, PA | 5 - 10 | Husqvarna |
| 8 | Marty Smith | San Diego, CA | 9 - 7 | Suzuki |
| 9 | Broc Glover | El Cajon, CA | 1 - 27 | Yamaha |
| 10 | | Anaheim, CA | 35 - 2 | Kawasaki |
| 11 | | Bristol, PA | 13 - 11 | Husqvarna |
| 12 | | Lebanon, PA | 11 - 16 | Honda |
| 13 | | Harrisburg, PA | 10 - 19 | Maico |
| 14 | | Farmingdale, NJ | 8 - 32 | Maico |
| 15 | | San Clemente, CA | 36 - 9 | Husqvarna |
| 16 | | Painesville, OH | 16 - 14 | Husqvarna |
| 17 | | Lapeer, MI | 18 - 13 | Yamaha |
| 18 | | Binghamton, NY | 24 - 12 | Suzuki |
| 19 | | Richfield Springs, NY | 17 - 17 | Suzuki |
| 20 | | Burlington, WI | 14 | Kawasaki |
| 21 | | Holly, MI | 21 - 15 | Yamaha |
| 22 | | Brooksville, FL | 15 - 33 | Yamaha |
| 23 | | Mahwah, NJ | 22 - 18 | |
| 24 | | Sudbury, MA | 19 - 36 | KTM |
| 25 | | Allentown, PA | 23 - 20 | Yamaha |
| 26 | | Medina, OH | 20 - 38 | Maico |


