PORSCHE RACING HISTORYChassis No. 917/30-003
8 July 1973 - Can-Am Road Atlanta - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917/30 TC | 917/30-003 | Mark Donohue (USA) | Penske-Roger Enterprises, Inc. | 2nd | 1st | 90 laps |
12 August 1973 - Can-Am Mid-Ohio - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917/30 TC | 917/30-003 | Mark Donohue (USA) | Penske-Roger Enterprises, Inc. | 1st | 1st | 84 laps |
26 August 1973 - Can-Am Road America - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917/30 TC | 917/30-003 | Mark Donohue (USA) | Penske-Roger Enterprises, Inc. | 1st | 1st | 25 laps |
16 September 1973 - Can-Am Edmonton - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917/30 TC | 917/30-003 | Mark Donohue (USA) | Penske-Roger Enterprises, Inc. | 1st | 1st | 50 laps |
14 October 1973 - Can-Am Laguna Seca - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917/30 TC | 917/30-003 | Mark Donohue (USA) | Penske-Roger Enterprises, Inc. | 1st | 1st | 66 laps |
29 October 1973 - Can-Am Riverside - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917/30 TC | 917/30-003 | Mark Donohue (USA) | Penske-Roger Enterprises, Inc. | 1st | 1st | 49 laps |