1972 AMA Pro Motocross Championship Cal-Expo: 500MX Results
May 14, 1972
- 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 | Bike | |
|---|---|---|---|
| 1 | Brad Lackey | Lafayette, CA | Kawasaki |
| 2 | | Lafayette, CA | CZ |
| 3 | | Huntington Beach, CA | Kawasaki |
| 4 | | Cerritos, CA | Suzuki |
| 5 | | Torrance, CA | CZ |
| 6 | | Denver, CO | Husqvarna |
| 7 | | National City, CA | Husqvarna |
| 8 | Gary Jones | Hacienda Heights, CA | Yamaha |
| 9 | | Santa Ana, CA | Maico |
| 10 | | Costa Mesa, CA | Maico |
| 11 | | La Mesa, CA | Husqvarna |
| 12 | | Salt Lake City, UT | Husqvarna |
| 13 | | San Diego, CA | Husqvarna |
| 14 | | Napa, CA | Husqvarna |
| 15 | | Mill Valley, CA | CZ |
| 16 | Jim Pomeroy | Yakima, WA | Bultaco |
| 17 | | San Luis Obispo, CA | Suzuki |
| 18 | | Walnut Creek, CA | Yamaha |
| 19 | | Pasadena, CA | Husqvarna |
| 20 | | Salt Lake City, UT | Husqvarna |


