PORSCHE RACING HISTORY911
1966 1967 1968 1969 1970 1971 1973 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990
1977
6 February 1977 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 33 | Porsche 911 | GTU | Ara Dube (USA)/Harro Zitza (USA)/Joe Castellano (I) | Ara Dube (USA) | 21st | 8th | 46th | 441 laps |
30 May 1977 - Trans-Am Kent - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | TA-I | John Bauer (USA) | John Bauer Racing | 8th | 4th | 12th | 42 laps | |
| 98 | Porsche 911 | TA-I | Tom Spalding (USA) | Tom Spalding Racing | 27th | 18th | 32 laps |
12 June 1977 - Trans-Am Portland - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | TA-I | John Bauer (USA) | John Bauer Racing | 4th | 1st | 15th | 48 laps | |
| 98 | Porsche 911 | TA-I | Tom Spalding (USA) | John Bauer Racing | 12th | 6th | 21st | 47 laps | |
| 26 | Porsche 911 | TA-II | Tom Masterson (USA) | 19th | 8th | 42nd | 44 laps |
26 June 1977 - Trans-Am Nelson Ledges - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | TA-I | John Bauer (USA) | John Bauer Racing | 3rd | 1st | 9th | 49 laps | |
| 98 | Porsche 911 | TA-I | Tom Spalding (USA) | John Bauer Racing | 5th | 2nd | 16th | 48 laps | |
| 57 | Porsche 911 | TA-I | John Wood (USA) | John Wood Racing | 12th | 5th | 13th | 47 laps |
31 July 1977 - Trans-Am Hallett - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | TA-I | John Bauer (USA) | John Bauer Racing | 6th | 2nd | 7th | 53 laps | |
| 4 | Porsche 911 | TA-I | Larry Green (USA) | Larry Green Racing | 16th | 8th | 13th | 46 laps | |
| 98 | Porsche 911 | TA-I | Tom Spalding (USA) | John Bauer Racing | 17th | 9th | 8th | 45 laps |
14 August 1977 - Trans-Am Brainerd - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 98 | Porsche 911 | TA-I | Tom Spalding (USA) | Tom Spalding Racing | 9th | 4th | 11th | 31 laps | |
| 39 | Porsche 911 | TA-I | John Bauer (USA) | John Bauer Racing | 39th | 11th | 27 laps |
20 August 1977 - Mosport 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 98 | Porsche 911 | TA-I | Tom Spalding (USA)/John Bauer (USA)/Elliott Forbes-Robinson (USA) | Tom Spalding Racing (USA) | 4th | 2nd | 17th | 227 laps |