| 1993 · 1993 24 Hours of Le Mans | 7 | 21 | Category 2 | Obermaier Racing | Otto Altenbach · Loris KesselOtto Altenbach Jürgen Oppermann Loris Kessel | Porsche 962 C | Porsche 935 3.0L F6 twin turbo | 355 | Wikipedia contributors · CC BY-SA 4.0 |
| 1993 · 1993 24 Hours of Le Mans | 22 | 40 | Category 4 | Obermaier Racing | Philippe Olczyk Josef Prechtl Gérard Dillmann | Porsche 911 Carrera RSR | Porsche M64 3.8L F6 | 274 | Wikipedia contributors · CC BY-SA 4.0 |
| 1993 · 1993 24 Hours of Le Mans | DNS | 41 | Category 4 | Obermaier Racing | Ruggero Grassi Sergio Brambilla Renato Mastropietro | Porsche 964 Carrera 2 Cup | Porsche M64 3.6L F6 | | Wikipedia contributors · CC BY-SA 4.0 |
| 1990 · FIA WSPC - Trofeo Caracciolo, Monza | 15 | 26 | | Obermaier Racing | Harald Grohs · Jürgen Oppermann | Porsche 962C | — | 77 | WSPR historical record |
| 1990 · FIA WSPC - Trofeo Caracciolo, Monza | retired | 27 | | Obermaier Racing | Jürgen Lässig · Otto Altenbach | Porsche 962C | — | 11 | WSPR historical record |
| 1990 · FIA WSPC - British Empire Trophy, Silverstone | 10 | 26 | | Obermaier Racing | Harald Grohs · Jürgen Oppermann | Porsche 962C | — | 96 | WSPR historical record |
| 1990 · FIA WSPC - British Empire Trophy, Silverstone | 18 | 27 | | Obermaier Racing | Jürgen Lässig · Otto Altenbach | Porsche 962C | — | 88 | WSPR historical record |
| 1990 · FIA WSPC - British Empire Trophy, Silverstone | source_section_running_in_practice | 27T | | Obermaier Racing | Otto Altenbach · Jürgen Lässig | Porsche 962C | — | | WSPR historical record |
| 1990 · FIA WSPC - Coupes de Spa, Spa Francorchamps | 11 | 27 | | Obermaier Racing | Otto Altenbach · Jürgen Lässig | Porsche 962C | — | 67 | WSPR historical record |
| 1990 · FIA WSPC - Coupes de Spa, Spa Francorchamps | retired | 26 | | Obermaier Racing | Harald Grohs · Jürgen Oppermann | Porsche 962C | — | 17 | WSPR historical record |
| 1990 · FIA WSPC, Dijon-Prenios | 17 | 27 | | Obermaier Racing | Otto Altenbach · Harald Grohs · DNS - Pierre Yver | Porsche 962C | — | 117 | WSPR historical record |
| 1990 · FIA WSPC, Dijon-Prenios | retired | 26 | | Obermaier Racing | DNS - Harald Grohs | Porsche 962C | — | 0 | WSPR historical record |
| 1990 · FIA WSPC - ADAC Sportwagen WM, Nürburgring | 16 | 27 | | Obermaier Racing | Jürgen Lässig · Otto Altenbach | Porsche 962C | — | 99 | WSPR historical record |
| 1990 · FIA WSPC - ADAC Sportwagen WM, Nürburgring | 17 | 26 | | Obermaier Racing | Harald Grohs · Jürgen Oppermann | Porsche 962C | — | 98 | WSPR historical record |
| 1990 · FIA WSPC - Shell Donington Trophy | 13 | 26 | | Obermaier Racing | Harald Grohs · Otto Altenbach | Porsche 962C | — | 113 | WSPR historical record |
| 1990 · FIA WSPC - Shell Donington Trophy | retired | 27 | | Obermaier Racing | Otto Altenbach · Harald Grohs | Porsche 962C | — | 1 | WSPR historical record |
| 1990 · FIA WSPC Mondial Players Ltd., Montreal | 17 | 27 | | Obermaier Racing | Otto Altenbach · Jürgen Lässig | Porsche 962C | — | 58 | WSPR historical record |
| 1990 · FIA WSPC Mondial Players Ltd., Montreal | 11 | 26 | | Obermaier Racing | Harald Grohs · DNS - Otto Altenbach | Porsche 962C | — | 59 | WSPR historical record |
| 1990 · FIA WSPC - Trofeo Hermanos Rodriguez, Mexico | 9 | 27 | | Obermaier Racing | Otto Altenbach · Harald Grohs | Porsche 962C | — | 103 | WSPR historical record |
| 1990 · FIA WSPC - Trofeo Hermanos Rodriguez, Mexico | did_not_start | 26 | | Obermaier Racing | Harald Grohs · Otto Altenbach | Porsche 962C | — | | WSPR historical record |
| 1986 · 1986 24 Hours of Le Mans | 5 | 9 | Gr.C1 | Obermaier Racing | Jürgen Lässig · Dudley Wood · Fulvio BallabioJürgen Lässig Dudley Wood Fulvio Ballabio | Porsche 956 | Porsche 935/79 2.6L F6 twin turbo | 345 | Wikipedia contributors · CC BY-SA 4.0 |
| 1986 · Coppa Kouros, Monza | 7 | 9 | 7. C1 | Obermaier Racing | Fulvio Ballabio · Richard Hamann · DNS - Jürgen Lässig | Porsche 956 | — | 60 | WSPR historical record |
| 1986 · Kouros' 1000 km Silverstone | 12 | 9 | 2. C1 | Obermaier Racing | Jürgen Lässig · Fulvio Ballabio · Hervé Regout · Dudley Wood | Porsche 956 | — | 195 | WSPR historical record |
| 1986 · 100 Meilen von Nürnberg, Norisring | 7 | 9 | 7. C1 | Obermaier Racing | Jürgen Lässig | Porsche 956 | — | 77 | WSPR historical record |
| 1986 · Shell Gemini 1000 km Brands Hatch | 8 | 9 | 7. C1 | Obermaier Racing | Jürgen Lässig · Fulvio Ballabio · Dudley Wood | Porsche 956 | — | 220 | WSPR historical record |
| 1986 · Trofeo Silk Cut, Jerez | 4 | 9 | 4. C1 | Obermaier Racing | Fulvio Ballabio · Dudley Wood · Jürgen Lässig | Porsche 956 | — | 82 | WSPR historical record |
| 1986 · ADAC Kouros 1000 km Nürburgring | 4 | 9 | 4. C1 | Obermaier Racing | Jürgen Lässig · Fulvio Ballabio · Harald Grohs | Porsche 956 | — | 115 | WSPR historical record |
| 1986 · Kouros 1000 Kilometres Spa | retired | 9 | C1 | Obermaier Racing | Jürgen Lässig · Hervé Regout · Dudley Wood | Porsche 956 | — | 11 | WSPR historical record |
| 1985 · Trofeo Filippo Caracciolo, Monza | retired | 26 | C1 | Obermaier Racing | Jürgen Lässig · Hervé Regout · Jésus Pareja | Porsche 956 | — | 78 | WSPR historical record |
| 1985 · Silverstone 1000 Kilometres | 7 | 26 | 7. C1 | Obermaier Racing | Jürgen Lässig · Hervé Regout · Jésus Pareja | Porsche 956 | — | 204 | WSPR historical record |
| 1985 · Duschfrish ADAC 1000 Kilometres, Hockenheim | 7 | 26 | C1 | Obermaier Racing | Hervé Regout · Jürgen Lässig · Jésus Pareja | Porsche 956 | — | 136 | WSPR historical record |
| 1985 · 1000 km Spa | 8 | 26 | 8. C1 | Obermaier Racing | Jürgen Lässig · Hervé Regout · Jésus Pareja | Porsche 956 | — | 113 | WSPR historical record |
| 1984 · 1984 24 Hours of Le Mans | DNF | 47 | Gr.C1 | Obermaier Racing | Jürgen Lässig · George Fouché · John GrahamJürgen Lässig George Fouché John Graham | Porsche 956 | Porsche 935/79 2.6L F6 twin turbo | 147 | Wikipedia contributors · CC BY-SA 4.0 |
| 1984 · Trofeo Filippo Caracciolo, Monza | retired | 47 | C1 | Obermaier Racing | Axel Plankenhorn · Jürgen Lässig · George Fouché | Porsche 956 | — | 70 | WSPR historical record |
| 1984 · Grand Prix International 1000 Kilometres, Silverstone | retired | 18 | C1 | Obermaier Racing | Jürgen Lässig · Hervé Regout · George Fouché | Porsche 956 | — | 201 | WSPR historical record |
| 1984 · ADAC 1000 Kilometres, Nürburgring | 21 | 18 | C1 | Obermaier Racing | Mike Thackwell · Jürgen Lässig · David Sutherland | Porsche 956 | — | 171 | WSPR historical record |
| 1984 · Rothmans Spa 1000 Kilometres, Spa | 5 | 18 | 5. C1 | Obermaier Racing | Hervé Regout · Jürgen Lässig · Phillippe Martin | Porsche 956 | — | 141 | WSPR historical record |
| 1984 · 1000 Kilometres di Imola | 6 | 18 | 6. C1 | Obermaier Racing | Harald Grohs · Hervé Regout · Jürgen Lässig | Porsche 956 | — | 191 | WSPR historical record |
| 1983 · 1983 24 Hours of Le Mans | 7 | 18 | Gr.C | Obermaier Racing | Jürgen Lässig · Desiré WilsonJürgen Lässig Axel Plankenhorn Desiré Wilson | Porsche 956 | Porsche 935/79 2.6L F6 twin turbo | 348 | Wikipedia contributors · CC BY-SA 4.0 |
| 1983 · Trofeo Filippo Caracciolo, Monza | 4 | 18 | 4. C | Obermaier Racing | Axel Plankenhorn · Jürgen Lässig · Jürgen Barth | Porsche 956 | — | 163 | WSPR historical record |
| 1983 · Grand Prix International 1000 Kilometres, Silverstone | 4 | 18 | 4. C | Obermaier Racing | Axel Plankenhorn · Jürgen Lässig · Harald Grohs | Porsche 956 | — | 201 | WSPR historical record |
| 1983 · Bitburger Pils ADAC 1000 Kilometres, Nürburgring | 4 | 18 | 4. C | Obermaier Racing | Jürgen Lässig · Axel Plankenhorn · Hans Heyer | Porsche 956 | — | 42 | WSPR historical record |
| 1983 · Trophee Diners Club 1000 Kilometres, Spa-Francorchamps | 5 | 18 | 5. C | Obermaier Racing | Jürgen Lässig · Axel Plankenhorn · Hervé Regout | Porsche 956 | — | 136 | WSPR historical record |
| 1982 · Rudolf Caracciola Wanderpreis 1000 Kilometres, Nürburgring | retired | 53 | GT | Obermaier Racing | Hermann-Peter Duge · Kurt König · Jürgen Lässig | BMW M1 | — | 11 | WSPR historical record |