| # | Date | Promotion | Match |
| 1 | 23.06.1972 |   |
Stampede North American Heavyweight Title Best Two Out Of Three Falls: Tor Kamata defeats Geoff Portz (c) by Ringrichterentschied [2:1] - TITLE CHANGE !!! Stampede - Event @ Victoria Pavilion in Calgary, Alberta, Canada |
| 2 | 16.06.1972 | |
Stampede North American Heavyweight Title Best Two Out Of Three Falls: Geoff Portz (c) defeats Les Thornton by referee's decision [1:1] Stampede - Event @ Victoria Pavilion in Calgary, Alberta, Canada |
| 3 | 15.06.1972 | |
Stampede North American Heavyweight Title: Geoff Portz (c) defeats Tor Kamata Stampede - Event @ Exhibition Auditorium in Regina, Saskatchewan, Canada |
| 4 | 09.06.1972 | |
Stampede North American Heavyweight Title Best Two Out Of Three Falls: Geoff Portz (c) vs. George Gordienko - Time Limit Draw [1:1] (60:00) Stampede - Event @ Victoria Pavilion in Calgary, Alberta, Canada |
| 5 | 08.06.1972 | |
Stampede North American Heavyweight Title: Geoff Portz (c) defeats Tor Kamata Stampede - Event @ Exhibition Auditorium in Regina, Saskatchewan, Canada |
| 6 | 02.06.1972 | |
Stampede North American Heavyweight Title Best Two Out Of Three Falls: Geoff Portz defeats Tor Kamata (c) [2:1] - TITLE CHANGE !!! Stampede - Event @ Victoria Pavilion in Calgary, Alberta, Canada |
