PORSCHE RACING HISTORY935/80
1981
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00024 | GTX | Hurley Haywood (USA)/Jürgen Barth (D)/Bruce Leven (USA) | Bayside Disposal Racing (USA) | 42nd | 14th | 4th | 232 laps - DNF |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00024 | GTX | Hurley Haywood (USA)/Bruce Leven (USA) | Bayside Disposal Racing (USA) | 5th | 5th | 7th | 189 laps |
3 May 1981 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00024 | GTX | Hurley Haywood (USA) | Bayside Disposal Racing (USA) | 9th | 9th | 10th | 52 laps |
24 May 1981 - Lime Rock 200 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00024 | GTX | Hurley Haywood (USA) | Bayside Disposal Racing (USA) | 24th | 13th | 8th | 24 laps - DNF |
12 July 1981 - Watkins Glen 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00028 | Gr.5 | Hurley Haywood (USA)/Bruce Leven (USA) | Bayside Disposal Racing (USA) | DNF | 5th | 80 laps - Turbocharger |
13 September 1981 - Road Atlanta 150 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00028 | GTX | Bruce Leven (USA)/Hurley Haywood (USA) | Bayside Disposal Racing (USA) | 19th | 9th | 11th | 27 laps - DNF |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 935/80 | 000 00028 | GTX | Hurley Haywood (USA) | Bayside Disposal Racing (USA) | 3rd | 3rd | 4th | 65 laps |