PORSCHE RACING HISTORYRichard Weiss (USA)
1977 : Daytona 24 Hours - 2nd in class
6 February 1977 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 28 | Porsche 911 S | GTU | Richard Weiss (USA)/Bill Alsup (USA)/Raymond Gage (USA) | Weiss Motor Racing (USA) | 8th | 2nd | 41st | 596 laps |
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 S | GTU | Pedro Vazquez (USA)/Bill Wolfe (USA)/Richard Weiss (USA) | Pedro Vazquez (USA) | 64th | 24th | 54th | 35 laps - DNF |
9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 28 | Porsche 911 S | GT | Richard Weiss (USA) | Weiss Motor Racing (USA) | 30th | 5th | 40th | 95 laps |