PORSCHE RACING HISTORYBob Akin (USA)
1981 : Daytona 24 Hours - 2nd overall : Silverstone 6 Hours - 2nd in class
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3 | 009 00016 | GTX | Bob Akin (USA)/Craig Siebert (USA)/Derek Bell (GB) | Bob Akin Motor Racing (USA) | 2nd | 2nd | 8th | 695 laps |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3 | 009 00016 | GTX | Bob Akin (USA)/Derek Bell (GB)/Craig Siebert (USA) | Bob Akin Motor Racing (USA) | 60th | 20th | 8th | 62 laps - Engine |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 46 | Porsche 935 J | 000 00012 | GTX | Mauricio DeNarváez (COL)/Bob Akin (USA)/Skeeter McKitterick (USA) | Mauricio DeNarvaez (CO) | 23rd | 10th | 9th | 154 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 - 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 |
14 June 1981 - Le Mans 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 43 | Porsche 935 K3/80 | 000 00013 | IMSA GTX | Paul Miller (USA)/Craig Siebert (USA)/Bob Akin (USA) | Bob Akin Motor Racing (USA) | DNF | 30th | 320 laps - Short Circuit |
12 July 1981 - Watkins Glen 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 43 | Porsche 935 K3/80 | 000 00013 | Gr.5 | Bob Akin (USA)/Craig Siebert (USA)/Vivian Candy (IRL) | Bob Akin Motor Racing, Inc. (USA) | 8th | 7th | 10th | 146 laps |
16 August 1981 - Mosport 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTX | Skeeter McKitterick (USA)/Bob Akin (USA) | Bob Akin Racing (USA) | 12th | 8th | 8th | 205 laps |
23 August 1981 - Road America 500 Miles - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTX | Skeeter McKitterick (USA)/Bob Akin (USA) | Bob Akin Motor Racing (USA) | 33rd | 12th | 16th | 62 laps - Engine |
30 August 1981 - Mid-Ohio 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | Gr.5 | Bob Akin (USA)/Skeeter McKitterick (USA) | Bob Akin Motor Racing (USA) | 13th | 5th | 9th | 114 laps |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTX | Bob Akin (USA)/Skeeter McKitterick (USA) | Bob Akin Motor Racing (USA) | 11th | 8th | 12th | 61 laps |