| 1981 · Silverstone 6 Hours | retired | 5 | S+2.0 | Joest Racing | Jochen Mass · Reinhold Jöst · Volkert Merl | Porsche 908/80 | — | 0 | WSPR historical record |
| 1981 · 1000 km Nürburgring | 2 | 1 | 1. S+2.0 | Joest Racing | Jochen Mass · Reinhold Jöst | Porsche 908/80 | — | 17 | WSPR historical record |
| 1980 · 19th Annual 24 Hour Pepsi Challenge, Daytona International Speedweay | 1 | 2 | 1. GTX | LM Jöst Racing | Reinhold Jöst · Rolf Stommelen · Volkert Merl | Porsche 935J T | — | 715 | WSPR historical record |
| 1980 · Brands Hatch 6 Hours | retired | 1 | 3. S+2.0 | LM Jöst Racing | Reinhold Jöst · Volkert Merl | Porsche 908/4 Turbo | — | 111 | WSPR historical record |
| 1980 · Nürburgring 1000 Kilometres | entry_only | 32 | S+2.0 | Liqui Moly | Reinhold Jöst · Jürgen Barth | Porsche 908/80 | — | | WSPR historical record |
| 1980 · 6 hours of Watkins Glen | 29 | 30 | Gr.5 | Gianpiero Moretti | Reinhold Jöst · Gianpiero Moretti | Porsche 935J | — | 45 | WSPR historical record |
| 1979 · 18th Annual 24 Hour Pepsi Challenge, Daytona International Speedway | 46 | 4 | 1. GTX | LM Joest Porsche | Reinhold Jöst · Rolf Stommelen · Volkert Merl | Porsche 935J T | — | 162 | WSPR historical record |
| 1979 · Dijon 6 Hours | 1 | 31 | 1. S+2.0 | LM Joest Racing | Reinhold Jöst · Volkert Merl · Mario Ketterer | Porsche 908/3 | — | 255 | WSPR historical record |
| 1979 · 25th 1000 km Nürburgring | retired | 101 | S+2.0 | Liqui Moly Joest Racing | Rolf Stommelen · Reinhold Jöst | Porsche 908/3 TC | — | | WSPR historical record |
| 1979 · Rivet Suply 6 hours, Brands Hatch | 1 | 1 | 1. S+2.0 | LM Joest Racing | Reinhold Jöst · Volkert Merl | Porsche 908/3 TC | — | 231 | WSPR historical record |
| 1979 · Trofeo Ignazio Giunti, Vallelunga | retired | 19 | S+2.0 | Joest Racing | Reinhold Jöst · Mario Casoni · Volkert Merl | Porsche 908/3 Turbo | — | 65 | WSPR historical record |
| 1978 · 17th Annual 24 Hours of Daytona Camel GT Challenge | 13 | 21 | 8. GTX | Konrad Racing | Franz Konrad · Reinhold Jöst · Volkert Merl | Porsche 935/77 | — | 590 | WSPR historical record |
| 1978 · 6 h Mugello | 2 | 15 | 2. Gr.5 | Konrad Racing | Franz Konrad · Reinhold Jöst · Volkert Merl | Porsche 935/77 | — | 175 | WSPR historical record |
| 1978 · 6 h Silverstone | entry_only | 2 | Gr.5 | Joest Racing | Reinhold Jöst · Jürgen Barth | Porsche 935/77A | — | | WSPR historical record |
| 1978 · 1000 km Nürburgring | 5 | 7 | 5. Gr.5 | Jöst Racing | Reinhold Jöst · Jürgen Barth | Porsche 935/77A | — | 44 | WSPR historical record |
| 1977 · 24 Hours of Daytona, Daytona International Speedway | 3 | 8 | Gr.5 | Porsche Kremer Racing | Reinhold Jöst · Bob Wollek · Albrecht Krebs | Porsche 935 | — | 670 | WSPR historical record |
| 1977 · 500 kms de I'ACF, Dijon-Prenois | 8 | 7 | S3.0 | Jöst Racing | Reinhold Jöst · Claude Haldi | Porsche 908/3-6 TC | — | 94 | WSPR historical record |
| 1977 · Trofeo Filippo Caracciola, Monza | retired | 9 | S3.0 | Joest Racing | Reinhold Jöst · Brett Lunger | Porsche 908/3 Turbo | — | 72 | WSPR historical record |
| 1977 · 6 h Mugello | entry_only | 6 | GT | Joest Racing | Reinhold Jöst · Jürgen Barth | Porsche Carrera RSR | — | | WSPR historical record |
| 1977 · Kosset 6 Hours, Silverstone | 8 | 10 | 2. GT | Schiller Racing Team | Claude Haldi · Reinhold Jöst | Porsche 934 | — | 207 | WSPR historical record |
| 1977 · ADAC 1000 km Nürburgring | 7 | 32 | 1. GT | Schiller Racing Team | Claude Haldi · Reinhold Jöst | Porsche 934 | — | 40 | WSPR historical record |
| 1977 · Rivet Supply 6 Hours, Brands Hatch | 3 | 3 | 3. Gr.5 | Porsche Kremer Racing | Reinhold Jöst · Bob Wollek · Franz Konrad | Porsche 935 | — | 97 | WSPR historical record |
| 1977 · Hessen Preis, Hockenheim | retired | 15 | Gr.5 | Porsche Kremer Porsche | Franz Konrad · Reinhold Jöst · DNS - Bob Wollek | Porsche 935 | — | 148 | WSPR historical record |
| 1976 · March Trophy, Mugello 6 Hours | 4 | 23 | 3. Gr.5 | Joest Racing | Reinhold Jöst · Jürgen Barth · Wilhelm Bartels | Porsche Carrera RSR | — | 161 | WSPR historical record |
| 1976 · ADAC-Goodyear-Pokal, 300 Kilometres Nürburgring | 1 | 5 | 1. S3.0 | Jöst Racing | Reinhold Jöst | Porsche 908/4 Turbo | — | 11 | WSPR historical record |
| 1976 · Trofeo Filippo Caracciolo, Monza 4 Hours | 3 | 5 | 3. S3.0 | Joest Racing | Horst Godel · Jürgen Barth · Reinhold Jöst | Porsche 908/3 | — | 132 | WSPR historical record |
| 1976 · Trofeo Filippo Caracciolo, Monza 4 Hours | retired | 4 | S3.0 | Joest Racing | Reinhold Jöst · Ernst Kraus | Porsche 908/4 Turbo | — | 120 | WSPR historical record |
| 1976 · Trofeo Ignazio Giunti, Imola 500 Kilometres | 3 | 5 | 3. S3.0 | Joest Racing | Jürgen Barth · Reinhold Jöst · Horst Godel | Porsche 908/3 | — | 94 | WSPR historical record |
| 1976 · Trofeo Ignazio Giunti, Imola 500 Kilometres | 16 | 4 | 6. S3.0 | Joest Racing | Reinhold Jöst · Ernst Kraus | Porsche 908/4 Turbo | — | 71 | WSPR historical record |
| 1976 · Coppa Florio, Enna 4 Hours, Pergusa | retired | 6 | S3.0 | Joest Racing | Reinhold Jöst · Ernst Kraus | Porsche 908/3 Turbo | — | 8 | WSPR historical record |
| 1976 · 500 km des ACF Dijon-Prenois | 4 | 8 | 4. S3.0 | Joest Racing | Reinhold Jöst · Jürgen Barth | Porsche 908/3 Turbo | — | 144 | WSPR historical record |
| 1976 · Elan Trophy, Salzburgring | 2 | 6 | 2. S3.0 | Joest Racing | Reinhold Jöst · DNS - Jürgen Barth | Porsche 908/3 Turbo | — | 68 | WSPR historical record |
| 1976 · World Championship of Maker, 6 Hours of Silverstone | entry_only | 32 | GT | Joest Racing | Reinhold Jöst · Jürgen Barth · Eckhard Schimpf | Porsche Carrera RSR | — | | WSPR historical record |
| 1976 · ACF 6 Hours Dijon | 8 | 7 | 1. GT | Porsche Kremer Racing | Jürgen Barth · Reinhold Jöst · Bob Wollek | Porsche 934 T | — | 290 | WSPR historical record |
| 1975 · 1000 km Mugello (150 laps) | retired | 9 | S3.0 | Jöst Racing | Reinhold Jöst · Mario Casoni | Porsche 908/3 Turbo | — | 38 | WSPR historical record |
| 1975 · 800 km Dijon | 2 | 10 | 2. S3.0 | Scuderia Nettuno Ovoro | Reinhold Jöst · Mario Casoni | Porsche 908/3 Turbo | — | 238 | WSPR historical record |
| 1975 · Trofeo F. Carraciolo, Monza | 2 | 5 | 2. S3.0 | Scuderia Nettuno Ovoro | Reinhold Jöst · Mario Casoni | Porsche 908/3 Turbo | — | 171 | WSPR historical record |
| 1975 · Spa 1000 Kilometres, Spa-Francorchamps | 7 | 6 | 3. S3.0 | Scuderia Nettuno Ovoro | Jürgen Barth · Mario Casoni · Reinhold Jöst | Porsche 908/3 | — | 48 | WSPR historical record |
| 1975 · Spa 1000 Kilometres, Spa-Francorchamps | retired | 5 | S3.0 | Scuderia Nettuno Ovoro | Reinhold Jöst · Mario Casoni | Porsche 908/3 Turbo | — | 3 | WSPR historical record |
| 1975 · Coppa Florio, Enna-Pergusa | 3 | 4 | 3. S3.0 | Scuderia Nettuno Ovoro | Reinhold Jöst · Mario Casoni | Porsche 908/4 Turbo | — | 184 | WSPR historical record |
| 1975 · 1000 km Nürburgring | retired | 9 | S3.0 | Scuderia Nettuno Ovoro | Reinhold Jöst · Mario Casoni | Porsche 908/4 Turbo | — | 2 | WSPR historical record |
| 1975 · 1000 km Zeltweg | 3 | 5 | 3. S3.0 | Scuderia Nettuno Ovoro | Reinhold Jöst · Mario Casoni | Porsche 908/4 Turbo | — | 102 | WSPR historical record |
| 1975 · 6 Hours of Watkins Glen World Championship of Makes and SCCA Trans-Am Championship | 4 | 8 | 4. S3.0 | Scuderia Brescia Corse | Reinhold Jöst · Mario Casoni | Porsche 908/3 Turbo | — | 149 | WSPR historical record |
| 1974 · 1000 km Monza | 7 | 14 | 7. S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 161 | WSPR historical record |
| 1974 · 6 h Kyalami | retired | 5 | S3.0 | Joest Racing | Reinhold Jöst · Herbert Müller | Porsche 908/03 | — | 140 | WSPR historical record |
| 1974 · 1000 km Spa | entry_only | 10 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | | WSPR historical record |
| 1974 · 1000-km-Rennen Nürburgring | 19 | 12 | 9. S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 28 | WSPR historical record |
| 1974 · 1000 km Imola | 8 | 9 | 5. S3.0 | Joest Racing | Paul Blancpain · Knut-Holger Lehmann · Reinhold Jöst | Porsche 908/03 | — | 169 | WSPR historical record |
| 1974 · 1000 km Imola | retired | 8 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 43 | WSPR historical record |
| 1974 · 1000 km Zeltweg, Österreichring | retired | 10 | S3.0 | Joest Racing | Reinhold Jöst · Willy Kauhsen | Porsche 908/03 | — | 71 | WSPR historical record |
| 1974 · 1000 km Le Castellet | 4 | 16 | 4. S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 119 | WSPR historical record |
| 1974 · Brands Hatch BA 1000 Kilometres | 17 | 8 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 181 | WSPR historical record |
| 1973 · 24 h Daytona | retired | 57 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni · Paul Blancpain | Porsche 908/03 | — | 244 | WSPR historical record |
| 1973 · Watkins Glen 6 Hours | entry_only | 24 | S3.0 | Joest Racing | Reinhold Jöst · Charlie Kemp | Porsche 908/03 | — | | WSPR historical record |
| 1973 · Vallelunga 6 Hours | 5 | 12 | 5. S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 272 | WSPR historical record |
| 1973 · Dijon 1000 Kilometres | retired | 7 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 131 | WSPR historical record |
| 1973 · Monza 1000 Kilometres | retired | 12 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 1 | WSPR historical record |
| 1973 · Spa 1000 Kilometres | 10 | 40 | 1. GT | Martini Racing Team | George Follmer · Reinhold Jöst | Porsche Car | — | 60 | WSPR historical record |
| 1973 · ADAC 1000 Kilometres, Nürburgring | did_not_start | 10 | S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | | WSPR historical record |
| 1972 · Watkins Glen 6 Hours | 5 | 42 | 5. S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 166 | WSPR historical record |
| 1972 · BOAC 1000 Kilometres, Brands Hatch | retired | 1 | S3.0 | Jöst Racing Team | Reinhold Jöst · Mario Casoni | Porsche 908/03 | — | 110 | WSPR historical record |
| 1972 · Monza 1000 Kilometres | 2 | 7 | 2. S3.0 | Joest Racing | Reinhold Jöst · Gerhard Schüler | Porsche 908/03 | — | 170 | WSPR historical record |
| 1972 · Spa 1000 Kilometres | retired | 9 | S3.0 | Joest Racing | Reinhold Jöst · Willy Kauhsen | Porsche 908/03 | — | | WSPR historical record |
| 1972 · ADAC 1000 Kilometres, Nürburgring | 31 | 9 | 6. S3.0 | Joest Racing | Reinhold Jöst · Mario Casoni · Wilhelm Bartels | Porsche 908/03 | — | 33 | WSPR historical record |
| 1971 · Buenos Aires 1000 Kilometres | retired | 48 | S | Team Auto Usdau | Reinhold Jöst · Angel Monguzzi · DNS - Willy Kauhsen | Porsche 917K | — | 85 | WSPR historical record |
| 1971 · BOAC 1000 Kilometres, Brands Hatch | 6 | 10 | 4. S5.0 | Team Auto Usdau | Reinhold Jöst · Willy Kauhsen | Porsche 917K | — | 221 | WSPR historical record |
| 1971 · Trofeo Filippo Caracciolo, Monza 1000 Kilometres | 7 | 6 | 4. S5.0 | Team Auto Usdau | Willy Kauhsen · Reinhold Jöst | Porsche 917K | — | 164 | WSPR historical record |
| 1971 · Spa 1000 Kilometres | 4 | 25 | 3. S5.0 | Team Auto Usdau | Willy Kauhsen · Reinhold Jöst | Porsche 917K | — | 66 | WSPR historical record |
| 1971 · ADAC 1000 Kilometres, Nürburgring | 6 | 55 | 1. S5.0 | Team Auto Usdau | Reinhold Jöst · Willy Kauhsen | Porsche 917K | — | 40 | WSPR historical record |
| 1970 · Ausrian 1000 Kilometres, Zeltweg | 5 | 5 | 3. P3.0 | Martini Racing Team | Reinhold Jöst · Gerold Pankl | Porsche 908/02 | — | 162 | WSPR historical record |
| 1969 · Brands Hatch, BOAC 500 miles | 16 | 9 | S5.0 | IGFA - German Racing Team | Helmut Kelleners · Reinhold Jöst | Ford GT40 | — | 186 | WSPR historical record |
| 1969 · 1000 km Monza | 4 | 35 | 1. S5.0 | IGFA Racing Team | Helmut Kelleners · Reinhold Jöst | Ford GT40 | — | 92 | WSPR historical record |
| 1969 · 1000 km Spa | 10 | 37 | 4. S5.0 | IGFA Deutsche Auto Zeitung | Helmut Kelleners · Reinhold Jöst | Ford GT40 | — | 64 | WSPR historical record |
| 1969 · ADAC 1000 kilometres Nürburgring | 6 | 56 | 1. S5.0 | IGFA Deutsche Auto Zeitung | Helmut Kelleners · Reinhold Jöst | Ford GT40 | — | 41 | WSPR historical record |
| 1969 · Watkins Glen 6 Hours, 22nd Annual Sports Car Weekend at Watkins Glen | 5 | 7 | 1. S5.0 | Racing Team Deutsche Auto Z | Helmut Kelleners · Reinhold Jöst | Ford GT40 | — | 265 | WSPR historical record |
| 1968 · 1000 km Nürburgring | 11 | 87 | 1. S2.0 | Caltex Racing | Erich Bitter · Reinhold Jöst | Porsche 906 | — | 40 | WSPR historical record |
| 1968 · GP d'Autriche, 500 km Zeltweg | 11 | 14 | S2.0 | Scuderia Lufthansa | Hans-Dieter Dechent · Reinhold Jöst | Porsche 906 | — | 132 | WSPR historical record |
| 1967 · Sports Car Grand Prix Österreich, Zeltweg | 9 | 28 | 3. S1.3 | Scuderia Lufthansa | Reinhold Jöst · Hans-Dieter Dechent | Abarth 1300 OT | — | 142 | WSPR historical record |
| 1967 · 1000 km Nürburgring | retired | 105 | GT2.0 | Scuderia Lufthansa | Reinhold Jöst · Hermann Dorner | Porsche 911S | — | 18 | WSPR historical record |
| 1967 · Sports Car Grand Prix, Hockenheim | entry_only | 8 | S1.3 | Scuderia Lufthansa | Reinhold Jöst | Abarth 1300 OT | — | | WSPR historical record |
| 1966 · Grand Prix Hockenheim | did_not_start | 43 | S1.3 | Scuderia Lufthansa | Reinhold Jöst | Abarth-Simca 1300 Bialbero | — | | WSPR historical record |
| 1966 · ADAC - 1000 km Nürburgring | 23 | 24 | 1. P1.6 | Scuderia Lufthansa | Reinhold Jöst · Hermann Dorner | Porsche 356B 1600 | — | 36 | WSPR historical record |
| 1965 · Alpen Bergpreiss, Rossfeld Mountain Grand Prix | 17 | 41 | 2. GT1.6 | Reinhold Joest | Reinhold Jöst | Porsche 356B Carrera | — | 2 | WSPR historical record |
| 1965 · Bergpreis Freiburg-Schauinsland | 12 | 20 | 3. GT1.6 | Reinhold Jöst | Reinhold Jöst | Porsche 356B Carrera | — | 2 | WSPR historical record |
| 1964 · Grosser Bergpreis Freiburg-Schauinsland | 18 | 37 | 2. GT1.6 | Nord | Reinhold Jöst | Porsche 356B Carrera | — | 2 | WSPR historical record |
| 1964 · Alpenbergpreis Rossfeld | 24 | 45 | 4. GT1.6 | Reinhold Jöst | Reinhold Jöst | Porsche 356B Carrera | — | 2 | WSPR historical record |