PORSCHE RACING HISTORYChassis No. 000 00013
15 June 1980 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 43 | Porsche 935 K3/80 | 000 00013 | Gr.5 | Xavier Lapeyre (F)/Anny-Charlotte Verney (F)/Jean-Louis Trintignant (F) | Malardeau Kremer Racing (D) | DNF | 27th | 217 laps - Gearbox/Differential |
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 |
31 January 1982 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Craig Siebert (USA)/Derek Bell (GB) | Bob Akin Motor Racing (USA) | 2nd | 2nd | 7th | 708 laps |
20 March 1982 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Derek Bell (GB)/Craig Siebert (USA)/Bob Akin (USA) | Bob Akin Motor Racing (USA) | 12th | 6th | 5th | 212 laps |
25 April 1982 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Craig Siebert (USA)/Derek Bell (GB) | Bob Akin Motor Racing (USA) | 4th | 4th | 9th | 183 laps |
16 May 1982 - Charlotte 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Craig Siebert (USA) | Bob Akin Motor Racing (USA) | 3rd | 3rd | 4th | 133 laps |
15 August 1982 - Mosport 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Derek Bell (GB) | Bob Akin Motor Racing (USA) | 4th | 4th | 4th | 220 laps |
6 February 1983 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 73rd | 16th | 4th | 43 laps - Accident |
27 February 1983 - Miami GP - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Dale Whittington (USA) | Bob Akin Motor Racing (USA) | 14th | 14th | 15th | 26 laps |
19 March 1983 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Dale Whittington (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 2nd | 1st | 6th | 231 laps |
10 April 1983 - Road Atlanta 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Dale Whittington (USA) | Bob Akin Motor Racing (USA) | 43rd | 12th | 4th | 65 laps - DNF |
24 April 1983 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Dale Whittington (USA) | Bob Akin Motor Racing (USA) | 7th | 5th | 16th | 176 laps |
15 May 1983 - Charlotte 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 27th | 7th | 7th | 92 laps |
30 May 1983 - Lime Rock 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 2nd | 2nd | 5th | 173 laps |
19 June 1983 - Mid-Ohio 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 2nd | 2nd | 5th | 201 laps |
3 July 1983 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 3rd | 3rd | 6th | 64 laps |
10 July 1983 - Brainerd 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Dennis Aase (USA) | Bob Akin Motor Racing (USA) | 4th | 4th | 5th | 102 laps |
14 August 1983 - Mosport 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA)/Dennis Aase (USA) | Bob Akin Motor Racing (USA) | 12th | 6th | 5th | 191 laps |
21 August 1983 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA) | Bob Akin Motor Racing (USA) | 42nd | 11th | 15th | 25 laps - DNF |
11 September 1983 - Pocono 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/John O'Steen (USA) | Bob Akin Motor Racing (USA) | 4th | 3rd | 8th | 171 laps |
3 February 1985 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 935 K3/80 | 000 00013 | GTP | Chuck Kendall (USA)/Peter Fitzgerald (USA)/John Hotchkis (USA) | Kendall Racing (USA) | 21st | 10th | 29th | 512 laps - Piston |
23 March 1985 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 935 K3/80 | 000 00013 | GTP | Chuck Kendall (USA)/John Hotchkis (USA)/Robert Kirby (USA) | Kendall Racing (USA) | 8th | 6th | 46th | 240 laps |