PORSCHE RACING HISTORY917/10
Wikipedia
The very first 917 was unveiled to the public at the Geneva International Motor Show on th 12th March 1969. The 917 programme ran from 1969 until 1973. It gave Porsche its first overall wins at the 24 Hours of Le Mans in 1970 and 1971.
1971 1972 1973 1974 19751971
25 July 1971 - Can-Am Watkins Glen - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | Vasek Polak Racing | 3rd | 9th | 80 laps |
22 August 1971 - Can-Am Mid-Ohio - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | STP Porsche Audi | 2nd | 4th | 78 laps |
29 August 1971 - Can-Am Road America - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | STP Porsche Audi | 2nd | 6th | 49 laps |
12 September 1971 - Can-Am Donnybrooke - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | STP Porsche Audi | 5th | 8th | 69 laps |
26 September 1971 - Can-Am Edmonton - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | STP Porsche Audi | 4th | 7th | 78 laps |
17 October 1971 - Can-Am Laguna Seca - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | STP Porsche Audi | 5th | 7th | 88 laps |