PORSCHE RACING HISTORYPeter Gregg (USA)
1972 : Daytona 6 Hours - 1st in class : Can-Am Road America - 3rd
6 February 1972 - Daytona 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 911 S | GT2.5 | Hurley Haywood (USA)/Peter Gregg (USA) | Brumos Porsche Audi Corp. | 7th | 1st | 21st | 166 laps |
11 June 1972 - Can-Am Mosport - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 917/10 | 917/10-007 | Peter Gregg (USA) | Brumos Porsche Audi Corp. | 5th | 8th | 78 laps |
9 July 1972 - Can-Am Road Atlanta - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 917/10 | 917/10-007 | Peter Gregg (USA) | Brumos Porsche Audi Corp. | 5th | 6th | 72 laps - Out of Fuel |
23 July 1972 - Can-Am Watkins Glen - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 917/10 | 917/10-007 | Peter Gregg (USA) | Brumos Porsche Audi Corp. | 11th | 9th | 42 laps |
6 August 1972 - Can-Am Mid-Ohio - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 917/10 TC | 917/10-007 | Peter Gregg (USA) | Brumos Porsche Audi Corp. | DNF | 7th | 10 laps - Fuel Injector |
27 August 1972 - Can-Am Road America - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 917/10 TC | 917/10-007 | Peter Gregg (USA) | Brumos Porsche Audi Corp. | 3rd | 4th | 49 laps |
29 October 1972 - Can-Am Riverside - Can-Am - Canadian-American Challenge Cup
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 917/10 TC | 917/10-007 | Peter Gregg (USA) | Brumos Porsche Audi Corp. | 6th | 10th | 59 laps |