PORSCHE RACING HISTORYPorsche 911 Carrera - Chassis No. 911 210 0224
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA)/Don Kravig (USA) | Rick Borlase | 24th | 6th | 35th | 158 laps |
29 April 1979 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Don Kravig (USA) | Rick Borlase | 14th | 8th | 26th | 47 laps |
29 July 1979 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 | 911 210 0224 | GTO | Don Kravig (USA) | Rick Borlase | 29th | 13th | 29th | 7 laps - DNF |
5 August 1979 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 | 911 210 0224 | GTO | Rick Borlase (USA) | Rick Borlase | 18th | 8th | 26th | 38 laps |
3 February 1980 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA)/Don Kravig (USA)/Michael Hammond (USA) | Rick Borlase | 35th | 14th | 52nd | 348 laps |
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA)/Don Kravig (USA)/Michael Hammond (USA) | Rick Borlase | 19th | 6th | 49th | 205 laps |
27 April 1980 - Riverside 5 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 | 911 210 0224 | GTO | Rick Borlase (USA)/Don Kravig (USA)/Michael Hammond (USA) | Rick Borlase | 31st | 12th | 46th | 112 laps - Valve Spring |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA)/Michael Hammond (USA)/Don Kravig (USA) | Rick Borlase | 68th | 24th | 76th | 27 laps - DNF |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA)/Michael Hammond (USA) | Rick Borlase | 17th | 6th | 39th | 168 laps |
25 April 1982 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA) | Rick Borlase | 48th | 16th | 16th | 9 laps - DNF |
24 April 1983 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTO | Rick Borlase (USA)/Michael Hammond (USA) | Rick Borlase | 14th | 5th | 45th | 166 laps |
29 April 1984 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTO | Peter Jauker (USA)/Gary Auberlen (USA) | SP Racing (USA) | 35th | 10th | 46th | 82 laps - DNF |
29 July 1984 - Portland 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTO | Gary Auberlen (USA)/Peter Jauker (USA) | SP Racing (USA) | 18th | 5th | 28th | 125 laps |
23 March 1985 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTU | Gary Auberlen (USA)/Peter Jauker (USA)/Adrian Gang (USA)/Cary Eisenlohr (USA) | SP Racing (USA) | 15th | 1st | 61st | 209 laps |
28 April 1985 - Riverside 600 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 911 Carrera | 911 210 0224 | GTU | Gary Auberlen (USA)/Peter Jauker (USA) | S P Racing (USA) | 23rd | 4th | 56th | 98 laps |
25 August 1985 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 911 Carrera | 911 210 0224 | GTU | Gary Auberlen (USA)/Peter Jauker (USA) | SP Racing (USA) | 42nd | 10th | 54th | 26 laps - DNF |
2 February 1986 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTU | Karl Durkheimer (USA)/Gary Auberlen (USA)/Cary Eisenlohr (USA)/Peter Jauker (USA) | S-P Racing/Escort (USA) | 51st | 8th | 66th | 117 laps - Accident |
22 March 1986 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTU | Karl Durkheimer (USA)/Gary Auberlen (USA)/Cary Eisenlohr (USA)/Peter Jauker (USA) | S-P Racing (USA) | 31st | 8th | 66th | 166 laps |
1 February 1987 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTU | Bill Auberlen (USA)/Karl Durkheimer (USA)/Dieter Oest (USA) | SP Racing (USA) | 64th | 11th | 50th | 87 laps - Engine |
21 March 1987 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTU | Gary Auberlen (USA)/Bill Auberlen (USA)/Karl Durkheimer (USA) | SP Racing (USA) | 18th | 2nd | 54th | 244 laps |
31 January 1988 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 911 Carrera | 911 210 0224 | GTU | Gary Auberlen (USA)/Adrian Gang (USA)/Cary Eisenlohr (USA)/Bill Auberlen (USA) | SP Racing (USA) | 17th | 2nd | 64th | 586 laps |
19 March 1988 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera | 911 210 0224 | GTU | Bill Auberlen (USA)/Adrian Gang (USA)/Gary Auberlen (USA) | SP Racing (USA) | 31st | 7th | 48th | 224 laps |