| 13 | Mid-Ohio MX Park | 250MX 450 Class | July 30, 1972 | Husqvarna |
| 5 | Moto-sports Racing Circus Ltd | 250MX 450 Class | July 23, 1972 | Husqvarna |
| 6 | Unadilla Motocross | 250MX 450 Class | July 16, 1972 | Husqvarna |
| 14 | Los Angeles Memorial Coliseum | 250MX 450 Class | July 8, 1972 | Husqvarna |
| 1 | Straddle Line Park | 250MX 450 Class | July 2, 1972 | Husqvarna |
| 4 | Owyhee M/C Clubgrounds | 250MX 450 Class | June 25, 1972 | Husqvarna |
| 10 | Tahoe Recreation Park | 250MX 450 Class | June 18, 1972 | Husqvarna |
| 14 | Snyder Park | 250MX 450 Class | June 11, 1972 | Husqvarna |
| 13 | Carlsbad Raceway | 250MX 450 Class | May 28, 1972 | Husqvarna |
| 2 | Saddleback Park | 250MX 450 Class | May 21, 1972 | Husqvarna |
| 1 | Cal-Expo | 250MX 450 Class | May 14, 1972 | Husqvarna |
| 2 | Road Atlanta | 250MX 450 Class | April 16, 1972 | Husqvarna |
