PORSCHE RACING HISTORYKlaus Ludwig (D)
1987 : Laguna Seca 300 km - 1st overall
1 February 1987 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 86 | Porsche 962 | 962-121 | GTP | Klaus Ludwig (D)/Jochen Mass (B) | Bayside Disposal Racing (USA) | 56th | 13th | 1st | 144 laps - Chassis |
1 March 1987 - Miami 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 0 | Porsche 962 | 962C-116 | GTP | Klaus Ludwig (D)/"John Winter" Louis Krages (D) | Joest Racing (D) | 23rd | 14th | 10th | 98 laps - Accident |
12 April 1987 - Monza 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 962 C | 962C-116 | C1 | "John Winter" Louis Krages (D)/Stanley Dickens (S)/Klaus Ludwig (D) | Joest Racing (D) | 4th | 4th | 10th | 167 laps |
12 April 1987 - Monza 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-129 | C1 | Piercarlo Ghinzani (I)/Klaus Ludwig (D) | Joest Racing (D) | DNF | 6th | 88 laps - Overheating |
3 May 1987 - Laguna Seca 300 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 962 | 962-121 | GTP | Klaus Ludwig (D) | Bayside Disposal Racing (USA) | 1st | 1st | 4th | 98 laps |
28 June 1987 - Norisring 200 Mile - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 962 C | 962C-004 | C1 | Klaus Ludwig (D)/Frank Jelinski (D) | Joest Racing (D) | DQ | 14th | 153 laps - Oversize Fuel Tank |
28 June 1987 - Norisring 200 Mile - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-129 | C1 | Bob Wollek (F)/Klaus Ludwig (D) | Joest Racing (D) | DNF | 2nd | 76 laps - Out of Fuel |
30 August 1987 - Nürburgring 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 962 C | 962C-129 | C1 | Klaus Ludwig (D)/Bob Wollek (F) | Joest Racing (D) | DNF | 5th | 116 laps - Gearbox |
28 November 1987 - Kylami 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-129 | C1 | Klaus Ludwig (D) | Joest Racing (D) | DNF | 1st | 26 laps - Engine |