PORSCHE RACING HISTORYHans Wiedmer (D)
1973 : Can-Am Mosport - 2nd
10 June 1973 - Can-Am Mosport - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 917/10 TC | 917/10-006 | Hans Wiedmer (D) | Hans Wiedmer | 2nd | 8th | 78 laps |
8 July 1973 - Can-Am Road Atlanta - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 917/10 TC | 917/10-006 | Hans Wiedmer (D) | Hans Wiedmer | DNF | 12th | 28 laps - Driver ill |
22 July 1973 - Can-Am Watkins Glen - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 917/10 TC | 917/10-006 | Hans Wiedmer (D) | Hans Wiedmer | DNF | 9th | 34 laps - Turbo |
12 August 1973 - Can-Am Mid-Ohio - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 917/10 TC | 917/10-006 | Hans Wiedmer (D) | Hans Wiedmer | DNF | 17th | 4 laps - Hit Guardrail |