| 4 | Jim Pomeroy | Saddleback Park | 500MX | December 3, 1972 |
| 12 | Jim Pomeroy | Carnegie Cycle Park | 500MX | November 26, 1972 |
| 2 | Jim Pomeroy | Puyallup Raceway Park | 500MX | November 19, 1972 |
| 10 | Jim Pomeroy | Arizona Cycle Park | 500MX | November 12, 1972 |
| 5 | Jim Pomeroy | Carlsbad Raceway | 500MX | November 5, 1972 |
| 5 | Jim Pomeroy | Rio Bravo MX Park | 500MX | October 29, 1972 |
| 3 | Jim Pomeroy | Orlando Sports Stadium | 500MX | October 22, 1972 |
| 13 | Gary Bailey | Orlando Sports Stadium | 500MX | October 22, 1972 |
| 17 | Robert Harris | Orlando Sports Stadium | 500MX | October 22, 1972 |
| 3 | Jim Pomeroy | Road Atlanta | 500MX | October 15, 1972 |
| 13 | Robert Harris | Road Atlanta | 500MX | October 15, 1972 |
| 13 | Jim Pomeroy | Mid-American Motocross | 500MX | October 8, 1972 |
| 18 | Robert Harris | Mid-American Motocross | 500MX | October 8, 1972 |
| 3 | Jim Pomeroy | Honda Hills | 500MX | October 1, 1972 |
| 13 | Robert Harris | Honda Hills | 500MX | October 1, 1972 |
| 1 | Gary Bailey | Alabama International Speedway | 250MX | September 2, 1972 |
| 4 | Steven Thorton | Alabama International Speedway | 250MX | September 2, 1972 |
| 7 | Scott Jordan | Alabama International Speedway | 250MX | September 2, 1972 |
| 9 | John Borders | Alabama International Speedway | 250MX | September 2, 1972 |
| 11 | Robert Harris | Alabama International Speedway | 250MX | September 2, 1972 |
| 12 | John Borg | Alabama International Speedway | 500MX | September 2, 1972 |
| 14 | Gene Bready | Alabama International Speedway | 250MX | September 2, 1972 |
| 15 | Howard Kessinger | Alabama International Speedway | 500MX | September 2, 1972 |
| 11 | Robert Harris | Mid-Ohio MX Park | 250MX | July 30, 1972 |
| 18 | Jim Pomeroy | Mid-Ohio MX Park | 250MX | July 30, 1972 |
| 20 | Jim Pomeroy | Moto-sports Racing Circus Ltd | 250MX | July 23, 1972 |
| 9 | Jim Pomeroy | Unadilla Motocross | 250MX | July 16, 1972 |
| 20 | Robert Harris | Unadilla Motocross | 250MX | July 16, 1972 |
| 6 | Tom Rapp | Los Angeles Memorial Coliseum | 250MX | July 8, 1972 |
| 12 | Jim Pomeroy | Los Angeles Memorial Coliseum | 250MX | July 8, 1972 |
| 17 | Robert Harris | Los Angeles Memorial Coliseum | 250MX | July 8, 1972 |
| 3 | Robert Harris | Straddle Line Park | 250MX | July 2, 1972 |
| 12 | Jim Pomeroy | Straddle Line Park | 250MX | July 2, 1972 |
| 19 | Tom Rapp | Straddle Line Park | 250MX | July 2, 1972 |
| 10 | Jim Pomeroy | Owyhee M/C Clubgrounds | 250MX | June 25, 1972 |
| 13 | Robert Harris | Owyhee M/C Clubgrounds | 250MX | June 25, 1972 |
| 14 | Tom Rapp | Owyhee M/C Clubgrounds | 250MX | June 25, 1972 |
| 6 | Dave Longcor | Tahoe Recreation Park | 250MX | June 18, 1972 |
| 13 | Jim Pomeroy | Tahoe Recreation Park | 500MX | June 18, 1972 |
| 14 | Gordon Ochs | Tahoe Recreation Park | 250MX | June 18, 1972 |
| 1 | Gary Bailey | Snyder Park | 250MX | June 11, 1972 |
| 3 | John Borg | Snyder Park | 250MX | June 11, 1972 |
| 4 | Robert Harris | Snyder Park | 250MX | June 11, 1972 |
| 7 | John Borders | Snyder Park | 250MX | June 11, 1972 |
| 15 | Richard Sawdey | Snyder Park | 500MX | June 11, 1972 |
| 17 | Leland Rumph | Snyder Park | 250MX | June 11, 1972 |
| 20 | Robert Welter | Snyder Park | 500MX | June 11, 1972 |
| 14 | Jim Pomeroy | Carlsbad Raceway | 250MX | May 28, 1972 |
| 20 | Robin Cerasuolo | Carlsbad Raceway | 250MX | May 28, 1972 |
| 1 | Jim Pomeroy | Saddleback Park | 250MX | May 21, 1972 |
| 10 | Tom Rapp | Saddleback Park | 250MX | May 21, 1972 |
| 14 | Robin Cerasuolo | Saddleback Park | 250MX | May 21, 1972 |
| 16 | Jim Pomeroy | Cal-Expo | 500MX | May 14, 1972 |
| 2 | Robert Harris | Desoto Cycle Ranch | 250MX | May 7, 1972 |
| 5 | Gary Bailey | Desoto Cycle Ranch | 500MX | May 7, 1972 |
| 10 | Thomas Canning | Desoto Cycle Ranch | 500MX | May 7, 1972 |
| 16 | Leland Rumph | Desoto Cycle Ranch | 250MX | May 7, 1972 |
| 7 | Robert Harris | Road Atlanta | 250MX | April 16, 1972 |
| 7 | George Lunha | Road Atlanta | 500MX | April 16, 1972 |
| 8 | David Clemence | Road Atlanta | 250MX | April 16, 1972 |
| 9 | Thomas Canning | Road Atlanta | 500MX | April 16, 1972 |
| 13 | John Borders | Road Atlanta | 250MX | April 16, 1972 |
| 16 | Gary Bailey | Road Atlanta | 500MX | April 16, 1972 |