PORSCHE RACING HISTORYPorsche 935 K3/80 - Chassis No. 000 0009
3 February 1980 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTX | John Fitzpatrick (GB)/Manfred Schurti (FL)/Dick Barbour (USA) | Dick Barbour Racing (USA) | 29th | 9th | 3rd | 405 laps |
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTX | John Fitzpatrick (GB)/Dick Barbour (USA) | Dick Barbour Racing (USA) | 1st | 1st | 1st | 253 laps |
13 April 1980 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTX | John Fitzpatrick (GB) | Dick Barbour Racing (USA) | 30th | 16th | 1st | 11 laps - Accident |
27 April 1980 - Riverside 5 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTX | John Fitzpatrick (GB)/Dick Barbour (USA) | Dick Barbour Racing (USA) | 1st | 1st | 2nd | 165 laps |
4 May 1980 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTX | John Fitzpatrick (GB) | Dick Barbour Racing (USA) | 1st | 1st | 2nd | 53 laps |
25 May 1980 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | Gr.5 | John Fitzpatrick (GB)/Axel Plankenhorn (D)/Dick Barbour (USA) | Sachs-Sporting-Dick-Barbour-Team (USA) | 2nd | 1st | 3rd | 44 laps |
5 July 1980 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 935 K3 | 000 0009 | Gr.5 | Jürgen Barth (D)/Volkert Merl (D) | Dick Barbour Racing (USA) | 5th | 5th | 38th | 133 laps |
3 August 1980 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 935 K3 | 000 0009 | GTX | Skeeter McKitterick (USA) | Dick Barbour Racing (USA) | 19th | 11th | 7th | 9 laps - DNF |
17 August 1980 - Mosport 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 935 K3 | 000 0009 | GTX | Skeeter McKitterick (USA)/Rick Mears (USA) | Dick Barbour Racing/Sachs USA (USA) | 5th | 5th | 14th | 237 laps |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 08 | Porsche 935 K3 | 000 0009 | GTX | Preston Henn (USA)/Marty Hinze (USA)/Gary Belcher (USA) | Preston Henn (USA) | 45th | 16th | 40th | 33 laps - DNF |
10 May 1981 - Silverstone 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 935 K3 | 000 0009 | Gr.5 | Adrian Yates-Smith (GB)/Preston Henn (USA) | Preston Henn (USA) | DNF | 19th | 143 laps - Accident |
24 May 1981 - Nürburgring 1000 Km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 935 K3 | 000 0009 | GTX+2.0 | Bob Wollek (F) | Preston Henn (USA) | 3rd | 1st | 14th | 17 laps |
14 June 1981 - Le Mans 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 41 | Porsche 935 K3 | 000 0009 | IMSA GTX | Preston Henn (USA)/Michael Chandler (USA)/Marcel Mignot (F) | Preston B. Henn (USA) | DNF | 17th | 45 laps - Crankshaft Pulley |
16 August 1981 - Mosport 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTX | Preston Henn (USA)/Edgar Dören (D) | Preston Henn (USA) | 4th | 4th | 17th | 219 laps |
23 August 1981 - Road America 500 Miles - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTX | Danny Sullivan (USA)/Edgar Dören (D) | Thunderbird Swap Shop (USA) | 36th | 13th | 14th | 50 laps - Fuel Injection |
27 September 1981 - Brands Hatch 1000 km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 935 K3/80 | 000 0009 | GTX | Desiré Wilson (ZA)/Edgar Dören (D) | Preston J. Henn (USA) | 8th | 2nd | 11th | 214 laps |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTX | Preston Henn (USA)/Bonnie Henn (USA) | Preston Henn (USA) | 49th | 15th | 28th | 31 laps |
31 January 1982 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Preston Henn (USA)/Desiré Wilson (ZA)/Marty Hinze (USA) | Thunderbird Swap Shop (USA) | 45th | 15th | 6th | 229 laps - DNF |
20 March 1982 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Preston Henn (USA)/Dale Whittington (USA)/Randy Lanier (USA) | T-Bird Swap Shop (USA) | 28th | 11th | 11th | 146 laps - Oil System |
3 July 1982 - Daytona 250 Miles Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Bonnie Henn (USA) | Henn's Swap Shop (USA) | 35th | 7th | 4th | 8 laps - DNF |
15 August 1982 - Mosport 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Preston Henn (USA) | Henn's Swap Shop Racing Team (USA) | 30th | 11th | 9th | 6 laps - DNF |
22 August 1982 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Preston Henn (USA)/Bonnie Henn (USA)/Desiré Wilson (ZA) | Henn's Swap Shop Racing Team (USA) | 41st | 14th | 12th | 38 laps - DNF |
5 September 1982 - Mid Ohio 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Preston Henn (USA) | Henn's Swap Shop Racing Team (USA) | 37th | 12th | 16th | 23 laps - DNF |
12 September 1982 - Road Atlanta 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Preston Henn (USA)/Doc Bundy (USA) | Henn's Swap Shop Racing Team (USA) | 2nd | 2nd | 5th | 123 laps |
28 November 1982 - Daytona Finale 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 935 K3 | 000 0009 | GTP | Derek Bell (GB)/Randy Lanier (USA) | Henn's Swap Shop (USA) | 3rd | 3rd | 10th | 83 laps |
27 February 1983 - Miami GP - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3 | 000 0009 | GTP | Don Whittington (USA) | Henn's Swap Shop Racing (USA) | 6th | 6th | 19th | 27 laps |
19 March 1983 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 94 | Porsche 935 K3 | 000 0009 | GTP | Don Whittington (USA)/Bill Whittington (USA) | Henn's Swap Shop Racing (USA) | 12th | 5th | 9th | 218 laps |
24 April 1983 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTP | Michael Andretti (USA)/A. J. Foyt (USA)/Mario Andretti (USA)/Preston Henn (USA) | PPG Industries (USA) | 20th | 7th | 9th | 154 laps - DNF |
14 August 1983 - Mosport 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 K3 | 000 0009 | GTP | John Graham (CDN)/Hurley Haywood (USA)/Eddie Wachs (USA) | Henn's T-Bird Swap Shop (USA) | 10th | 5th | 10th | 196 laps - DNF |