PORSCHE RACING HISTORYChassis No. 12803002
27 April 1980 - Riverside 5 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA)/M. L. Speer (USA) | Tortilla Flats Racing (USA) | 20th | 8th | 52nd | 138 laps |
4 May 1980 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA) | Tortilla Flats Racing (USA) | 22nd | 13th | 26th | 33 laps - DNF |
27 July 1980 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA) | Tortilla Flats Racing (USA) | 20th | 9th | 19th | 11 laps - DNF |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 42 | Porsche 911 Carrera RSR | 12803002 | GTX | Bob Copeman (USA)/Lawrence Farmer (USA)/Ken Moore (USA) | Alex Porsche Haus (USA) | 57th | 19th | 52nd | 7 laps - DNF |
26 July 1981 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA) | R. C. Copeman Racing (USA) | 29th | 14th | 20th | 0 laps - DNF |
2 August 1981 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA) | R. C. Copeman Racing (USA) | 15th | 8th | 21st | 46 laps |
30 August 1981 - Mid-Ohio 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 911 Carrera RSR | 12803002 | Gr.4 | Bob Copeman (USA)/Lawrence Farmer (USA) | Bob Copeman (USA) | 16th | 9th | 32nd | 110 laps |
31 January 1982 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Jerry Jolly (USA)/Bob Copeman (USA)/Tom Alan Marx (USA) | Copeman Racing (USA) | 46th | 21st | 63rd | 220 laps - DNF |
25 April 1982 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA) | R. C. Copeman (USA) | 43rd | 13th | 49th | 28 laps - DNF |
24 April 1983 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA)/Jerry Jolly (USA) | Copeman Racing (USA) | 26th | 9th | 49th | 132 laps |
1 May 1983 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 12803002 | GTO | Bob Copeman (USA) | Copeman Racing (USA) | 22nd | 13th | 18th | 9 laps - DNF |
5 February 1984 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 54 | Porsche 911 Carrera RSR | 12803002 | GTO | Bruce Redding (USA)/H. J. Long (USA)/Bob Copeman (USA)/Jerry Jolly (USA) | Bob Copeman (USA) | 53rd | 19th | 74th | 197 laps |