PORSCHE RACING HISTORYPorsche 935 - Chassis No. 930 770 0909
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 935 | 930 770 0909 | GTX | Peter Gregg (USA)/Claude Ballot-Léna (F)/Brad Frisselle (USA) | JMS Brumos Porsche (USA) | 9th | 6th | 6th | 621 laps |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 935 | 930 770 0909 | GTX | Peter Gregg (USA)/Brad Frisselle (USA) | Brumos Porsche (USA) | 69th | 21st | 4th | 11 laps - Accident |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 935 | 930 770 0909 | GTX | Peter Gregg (USA)/Brad Frisselle (USA) | Brumos Porsche (USA) | 1st | 1st | 1st | 175 laps |
16 April 1978 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 935 | 930 770 0909 | GTX | Peter Gregg (USA) | Brumos Porsche Audi (USA) | 1st | 1st | 1st | 40 laps |
3 June 1979 - Trans-Am Westwood - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | TA-II | Bruce Leven (USA) | Bayside Disposal Racing (USA) | 4th | 4th | 7th | 53 laps |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | TA-II | Peter Gregg (USA)/Hurley Haywood (USA)/Bruce Leven (USA) | Bayside Disposal Racing (USA) | 31st | 15th | 3rd | 72 laps - Engine |
21 July 1979 - Trans-Am Road America - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | TA-II | Bruce Leven (USA) | Bayside Disposal Racing (USA) | 5th | 5th | 15th | 24 laps |
29 July 1979 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | GTX | Bruce Leven (USA) | Bayside Disposal Racing (USA) | 11th | 7th | 26th | 38 laps |
5 August 1979 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | GTX | Bruce Leven (USA) | Bayside Disposal Racing (USA) | 29th | 15th | 14th | 5 laps - DNF |
23 September 1979 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | GTX | Hurley Haywood (USA) | Bayside Disposal Racing (USA) | 4th | 4th | 4th | 40 laps |
13 April 1980 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | GTX | Bruce Leven (USA) | Bruce Leven (USA) | 25th | 14th | 13th | 16 laps - DNF |
4 May 1980 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 935 | 930 770 0909 | GTX | Bruce Leven (USA) | Bruce Leven (USA) | 7th | 7th | 37th | 49 laps |
3 August 1980 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 88 | Porsche 935 | 930 770 0909 | GTX | Bruce Leven (USA) | Bayside Disposal Racing (USA) | 7th | 7th | 8th | 50 laps |