PORSCHE RACING HISTORYBobby Rahal (USA)
1981 : Daytona 24 Hours - 1st overall : Riverside 6 Hours - 3rd overall : Silverstone 6 Hours - 2nd in class : Lime Rock 200 Miles - 2nd overall : Portland 100 Miles - 3rd overall : Brands Hatch 1000 km - 2nd overall, 1st in class
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 |
3 May 1981 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3/80 | 009 00030 | GTX | Bobby Rahal (USA) | Cooke Woods/Garretson (USA) | 4th | 4th | 3rd | 53 laps |
10 May 1981 - Silverstone 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 935 K3 | 009 00016 | GTX | Bob Akin (USA)/Bobby Rahal (USA)/Pete Lovett (GB) | Bob Akin Motor Racing Inc. (USA) | 6th | 2nd | 4th | 199 laps |
24 May 1981 - Lime Rock 200 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 0 | Porsche 935 K3/80 | 000 00010 | GTX | Ted Field (USA)/Bobby Rahal (USA) | Interscope Racing (USA) | 2nd | 2nd | 9th | 128 laps |
24 May 1981 - Nürburgring 1000 Km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 25 | Porsche 935 K3 | 009 00016 | Gr.5 | Bobby Rahal (USA)/Bob Akin (USA) | Bob Akin Motor Racing (USA) | DNF | 15th | 0 laps - Accident |
4 July 1981 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3/80 | 009 00030 | GTX | Bobby Rahal (USA)/Bob Garretson (USA) | Garretson Racing (USA) | 18th | 5th | 10th | 50 laps |
12 July 1981 - Watkins Glen 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 935/81 | JR-001 | Gr.5 | Gianpiero Moretti (I)/Bobby Rahal (USA) | Momo Accessories, Inc. (I) | 6th | 6th | 3rd | 157 laps |
26 July 1981 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3/80 | 009 00030 | GTX | Bobby Rahal (USA) | Garretson Racing (USA) | 18th | 9th | 4th | 18 laps - Crankshaft |
2 August 1981 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3/80 | 009 00030 | GTX | Bobby Rahal (USA) | Garretson Racing (USA) | 3rd | 3rd | 4th | 52 laps |
16 August 1981 - Mosport 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 935/81 | JR-001 | GTX | Gianpiero Moretti (I)/Bobby Rahal (USA) | Momo/Penthouse (I) | 26th | 11th | 10th | 105 laps - Accident |
23 August 1981 - Road America 500 Miles - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 935/81 | JR-001 | GTX | Gianpiero Moretti (I)/Bobby Rahal (USA) | Momo/Penthouse (I) | 5th | 5th | 7th | 118 laps |
27 September 1981 - Brands Hatch 1000 km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 50 | Porsche 935 K3/80 | 009 00030 | GTX | Bobby Rahal (USA)/Bob Garretson (USA) | Flying Tigers-Garretson Racing (USA) | 2nd | 1st | 6th | 230 laps |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3 | 009 00030 | GTX | Bobby Rahal (USA)/Bob Garretson (USA) | Garretson Racing (USA) | 17th | 9th | 13th | 57 laps |