PORSCHE RACING HISTORYDennis Aase (USA)
1977 : Laguna Seca 100 Miles - 3rd in class
6 February 1977 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 914/6 | GTU | Robert Kirby (USA)/John Hotchkis (USA)/Dennis Aase (USA) | Kirby Hitchcock Racing (USA) | 52nd | 12th | 38th | 47 laps - Engine |
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 88 | Porsche 911 S | GTU | Jim Borsos (USA)/Dennis Aase (USA) | 68th | 27th | 28th | 24 laps - Accident |
1 May 1977 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 04 | Porsche 911 S | GTU | Dennis Aase (USA) | Aase Bros. (USA) | 14th | 3rd | 14th | 49 laps |
12 June 1977 - Le Mans 24 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 77 | Porsche 911 Carrera RSR | 911 360 0601 | IMSA | Dennis Aase (USA)/Robert Kirby (USA)/John Hotchkis (USA) | Wynn's International | 20th | 6th | 50th | 247 laps |