PORSCHE RACING HISTORYChuck Kendall (USA)
1981 : Daytona 24 Hours - 2nd in class : Sebring 12 Hours - 1st in class
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Pete Smith (USA)/Chuck Kendall (USA)/Steve Earle (USA) | Chuck Kendall (USA) | 12th | 2nd | 38th | 585 laps |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Chuck Kendall (USA)/Pete Smith (USA)/Dennis Aase (USA) | Charles Kendall (USA) | 5th | 1st | 19th | 218 laps |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Alan Johnson (2) (USA)/Chuck Kendall (USA) | Kendall Racing (USA) | 48th | 15th | 25th | 30 laps - DNF |
26 July 1981 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Chuck Kendall (USA) | Kendall Racing (USA) | 14th | 7th | 28th | 30 laps |
2 August 1981 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Chuck Kendall (USA) | Chuck Kendall (USA) | 18th | 11th | 23rd | 44 laps |