PORSCHE RACING HISTORYBrian Redman (GB)
1981 : Daytona 24 Hours - 1st overall : Riverside 6 Hours - 3rd overall
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3 | 009 00030 | GTX | Bob Garretson (USA)/Bobby Rahal (USA)/Brian Redman (GB) | Garretson Racing/Style Auto (USA) | 1st | 1st | 16th | 708 laps |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3/80 | 009 00030 | GTX | Bob Garretson (USA)/Bobby Rahal (USA)/Brian Redman (GB) | Cooke Woods/Garretson Enterprises (USA) | 17th | 6th | 4th | 190 laps |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3 | 009 00030 | GTX | Bobby Rahal (USA)/Brian Redman (GB) | Cooke-Woods Racing (USA) | 3rd | 3rd | 4th | 197 laps |