| 1969 · 1969 24 Hours of Le Mans | DNF | 23 | P 3.0 | Porsche System Engineering | Udo Schütz · Gerhard MitterUdo Schütz Gerhard Mitter | Porsche 908 LH Coupé | Porsche 3.0L F8 | 199 | Wikipedia contributors · CC BY-SA 4.0 |
| 1969 · 24 h Daytona | 24 | 53 | P3.0 | Porsche System Engineering | Udo Schütz · Gerhard Mitter · Richard Attwood | Porsche 908L | — | 483 | WSPR historical record |
| 1969 · 12 h Sebring | 5 | 29 | 4. P3.0 | Porsche System Engineering | Gerhard Mitter · Udo Schütz | Porsche 908/02 | — | 232 | WSPR historical record |
| 1969 · Brands Hatch, BOAC 500 miles | 3 | 54 | 3. P3.0 | Porsche System Engineering | Gerhard Mitter · Udo Schütz | Porsche 908/02 | — | 223 | WSPR historical record |
| 1969 · 1000 km Monza | retired | 5 | P3.0 | Porsche System Engineering | Udo Schütz · Gerhard Mitter | Porsche 908 LH | — | 38 | WSPR historical record |
| 1969 · 53rd Targa Florio, Piccolo Madonie | 1 | 266 | 1. P3.0 | Porsche System Engineering | Gerhard Mitter · Udo Schütz | Porsche 908/02 | — | 10 | WSPR historical record |
| 1969 · 1000 km Spa | did_not_start | 24T | P3.0 | Porsche System Engineering | Gerhard Mitter · Udo Schütz | Porsche 908 LH | — | | WSPR historical record |
| 1969 · 1000 km Spa | retired | 30 | S5.0 | Porsche System Engineering | Gerhard Mitter · DNS - Udo Schütz | Porsche 917 | — | 1 | WSPR historical record |
| 1969 · ADAC 1000 kilometres Nürburgring | 31 | 2 | 7. P3.0 | Porsche System Engineering | Gerhard Mitter · Udo Schütz | Porsche 908/02 | — | 34 | WSPR historical record |
| 1968 · 1968 24 Hours of Le Mans | DSQ | 32 | P 3.0 | Porsche System Engineering | Gerhard Mitter · Vic ElfordGerhard Mitter Vic Elford | Porsche 908 LH | Porsche 3.0L F8 | 111 | Wikipedia contributors · CC BY-SA 4.0 |
| 1968 · 24 h Daytona | retired | 53 | P | Porsche System Engineering | Gerhard Mitter · Rolf Stommelen · DNS - Hans Herrmann | Porsche 907 LH 2.2 | — | 104 | WSPR historical record |
| 1968 · Sebring 12 Hours | 50 | 48 | P3.0 | Porsche System Engineering | Gerhard Mitter · Rolf Stommelen | Porsche 907 2.2 | — | 46 | WSPR historical record |
| 1968 · BOAC 500, Brands Hatch | 2 | 38 | 1. P3.0 | Porsche System Engineering | Gerhard Mitter · Ludovico Scarfiotti · DNS - Hans Herrmann | Porsche 907 2.2 | — | 218 | WSPR historical record |
| 1968 · 1000 km Monza | 11 | 5 | 3. P3.0 | Porsche System Engineering | Ludovico Scarfiotti · Gerhard Mitter | Porsche 908 LH | — | 84 | WSPR historical record |
| 1968 · 52nd Targa Florio, Piccolo Madonie | 48 | 108 | 3. S1.3 | Nissena | Guiseppe Valenza · Antonio Ferraro · Gerhard Mitter | Abarth-Simca 1300 Bialbero | — | 7 | WSPR historical record |
| 1968 · 52nd Targa Florio, Piccolo Madonie | source_section_running_in_practice | 230 | P3.0 | Porsche System Engineering | Ludovico Scarfiotti · Gerhard Mitter | Porsche 907 | — | | WSPR historical record |
| 1968 · 1000 km Nürburgring | retired | 1 | P3.0 | Porsche System Engineering | Gerhard Mitter · Ludovico Scarfiotti - DND · DNS - Jo Siffert | Porsche 908 | — | | WSPR historical record |
| 1968 · 1000 km Spa | 2 | 4 | 1. P3.0 | Porsche System Engineering | Gerhard Mitter · Jo Schlesser | Porsche 907 | — | 70 | WSPR historical record |
| 1967 · 1967 24 Hours of Le Mans | DNF | 40 | P 2.0 | Porsche System Engineering | Gerhard Mitter · Jochen RindtGerhard Mitter Jochen Rindt | Porsche 907 langheck | Porsche 1991cc F6 | 103 | Wikipedia contributors · CC BY-SA 4.0 |
| 1967 · 24 h Daytona | retired | 51 | P2.0 | Porsche System Engineering | Gerhard Mitter · Jochen Rindt | Porsche 906 E | — | 194 | WSPR historical record |
| 1967 · Sports Car Grand Prix Österreich, Zeltweg | retired | 15 | S2.0 | Gerhard Koch | Gerhard Mitter · Gerhard Koch | Porsche 906 | — | 39 | WSPR historical record |
| 1967 · Ollon-Villars, Swiss Mountain Grand Prix | 1 | 196 | 1. P2.0 | Porsche System | Gerhard Mitter | Porsche 910 Bergspyder | — | 2 | WSPR historical record |
| 1967 · Ollon-Villars, Swiss Mountain Grand Prix | source_section_running_in_practice | 196T | P2.0 | Porsche System | Gerhard Mitter | Porsche 910 Bergspyder | — | | WSPR historical record |
| 1967 · 12 h Sebring | 3 | 36 | 1. P2.0 | Porsche System Engineering | Scooter Patrick · Gerhard Mitter | Porsche 910 | — | 226 | WSPR historical record |
| 1967 · 1000 km Monza | 3 | 15 | 1. P2.0 | Porsche System Engineering | Jochen Rindt · Gerhard Mitter | Porsche 910 | — | 96 | WSPR historical record |
| 1967 · 1000 km Spa | 7 | 22 | 2. P2.0 | Porsche System Engineering | Gerhard Koch · Gerhard Mitter | Porsche 910 | — | 67 | WSPR historical record |
| 1967 · 51st Targa Florio, Piccolo Madonie | retired | 226 | P+2.0 | Porsche System Engineering | Gerhard Mitter · Colin Davis | Porsche 910/8 | — | 1 | WSPR historical record |
| 1967 · 1000 km Nürburgring | source_section_running_in_practice | T | P2.0 | Porsche System Engineering | Udo Schütz · Joe Buzzetta · Paul Hawkins · Gerhard Koch · Jochen Neerspasch · Vic Elford · Gerhard Mitter · Lucien Bianchi · Rolf Stommelen | Porsche 910 | — | | WSPR historical record |
| 1967 · 1000 km Nürburgring | 4 | 7 | P+2.0 | Porsche System Engineering | Gerhard Mitter · Lucien Bianchi | Porsche 910/8 | — | 43 | WSPR historical record |
| 1967 · GP Mugello, Circuito del Mugello | source_section_running_in_practice | T | P+2.0 | Porsche System | Gerhard Mitter · Rolf Stommelen | Porsche 910 | — | | WSPR historical record |
| 1967 · GP Mugello, Circuito del Mugello | 1 | 1 | 1. P+2.0 | Porsche System | Udo Schütz · Gerhard Mitter | Porsche 910 2.2 | — | 8 | WSPR historical record |
| 1966 · 24 h Daytona | 7 | 16 | 1. S2.0 | US Porsche System Engineerin | Gerhard Mitter · Joe Buzzetta | Porsche 904 GTS ASK | — | g 6 | WSPR historical record |
| 1966 · Grand Prix Hockenheim | 1 | 1 | 1. P2.0 | Porsche System Engineering | Gerhard Mitter | Porsche 906 E | — | 75 | WSPR historical record |
| 1966 · Sierre-Montagna-Crans, Swiss Mountain Grand Prix | 2 | 186 | 2. P2.0 | Porsche System | Gerhard Mitter | Porsche 910 | — | 2 | WSPR historical record |
| 1966 · Austrian Sports Car Grand Prix, Zeltweg | 1 | 14 | 1. S2.0 | Porsche System | Gerhard Mitter · Hans Herrmann | Porsche 906 | — | 157 | WSPR historical record |
| 1966 · 12 h Sebring | 39 | 53 | P2.0 | Porsche System Engineering | Gerhard Mitter · Günther Klass | Porsche 906 | — | 120 | WSPR historical record |
| 1966 · 12 h Sebring | 4 | 52 | 1. P2.0 | Porsche System Engineering | Hans Herrmann · Joe Buzzetta · Gerhard Mitter | Porsche 906 | — | 209 | WSPR historical record |
| 1966 · 1000 km Monza | 4 | 28 | 1. P2.0 | Porsche System Engineering | Gerhard Mitter · Hans Herrmann | Porsche 906 | — | 98 | WSPR historical record |
| 1966 · 50th Targa Florio, Piccolo Madonie | retired | 218 | P2.0 | Porsche System Engineering | Gerhard Mitter · Jo Bonnier | Porsche 906E | — | 6 | WSPR historical record |
| 1966 · 50th Targa Florio, Piccolo Madonie | source_section_running_in_practice | T | P2.0 | Porsche System Engineering | Vincenzo Arena · Antonio Pucci · Gerhard Mitter · Jo Bonnier · Hans Herrmann · Dieter Glemser | Porsche 904/6 | — | | WSPR historical record |
| 1966 · 50th Targa Florio, Piccolo Madonie | source_section_running_in_practice | T | P2.0 | Porsche System Engineering | Gerhard Mitter · Jo Bonnier · Hans Herrmann · Dieter Glemser · Vincenzo Arena · Antonio Pucci | Porsche 906 | — | | WSPR historical record |
| 1966 · 1000 km Spa | did_not_start | 10 | P2.0 | Porsche System Engineering | Gerhard Mitter · Peter Nöcker | Porsche 906 E | — | | WSPR historical record |
| 1965 · 1965 24 Hours of Le Mans | DNF | 33 | P 2.0 | Porsche System Engineering | Colin Davis · Gerhard MitterColin Davis Gerhard Mitter | Porsche 904 /8 | Porsche 1985cc F8 | 20 | Wikipedia contributors · CC BY-SA 4.0 |
| 1965 · Alpen Bergpreiss, Rossfeld Mountain Grand Prix | source_section_running_in_practice | 2 | SR/P2.0 | Porsche System | Gerhard Mitter | Porsche 904/8 Bergs | — | | WSPR historical record |
| 1965 · Alpen Bergpreiss, Rossfeld Mountain Grand Prix | 1 | 2T | 1. SR/P2.0 | Porsche System | Gerhard Mitter | Porsche 904/8 Bergs | — | 2 | WSPR historical record |
| 1965 · Bergpreis Freiburg-Schauinsland | 2 | 60 | 2. SR/P2.0 | Porsche System | Gerhard Mitter | Porsche 904/8 | — | 2 | WSPR historical record |
| 1965 · Grosser Bergpreis der Schweiz, Ollon Villars | 2 | 171 | 2. SR/P2.0 | Porsche System | Gerhard Mitter | Porsche 904/8 Bergs | — | 2 | WSPR historical record |
| 1965 · Grosser Bergpreis der Schweiz, Ollon Villars | source_section_running_in_practice | T | SR/P2.0 | Porsche System | Gerhard Mitter | Porsche 904/8 | — | | WSPR historical record |
| 1965 · 500 km Nürburgring | 2 | 11 | 2. P1.3 | Abarth | Gerhard Mitter · DNS - Enzo Osella | Abarth 1300SP | — | 22 | WSPR historical record |
| 1965 · 12 h Sebring | 9 | 38 | 1. P2.0 | Porsche System Engineering | Gerhard Mitter · Herbert Linge | Porsche 904/8 | — | 184 | WSPR historical record |
| 1965 · 49th Targa Florio, Piccolo Madonie | 2 | 182 | 1. P2.0 | Porsche System Engineering | Colin Davis · Gerhard Mitter · DNS - Jo Bonnier · DNS - Graham Hill | Porsche 904/8 Bergs | — | 10 | WSPR historical record |
| 1965 · XI. Int. ADAC 1000 Kilometers Rennen Nürburgring | 9 | 21 | 5. P2.0 | Porsche System | Gerhard Mitter · Colin Davis | Porsche 904/6 | — | 42 | WSPR historical record |
| 1965 · XI. Int. ADAC 1000 Kilometers Rennen Nürburgring | source_section_running_in_practice | 21T | P2.0 | Porsche System | Gerhard Mitter · Colin Davis · Jo Bonnier · Jochen Rindt | Porsche 904/8 Bergs | — | | WSPR historical record |
| 1964 · 1964 24 Hours of Le Mans | DNF | 30 | P 2.0 | Porsche System Engineering | Colin Davis · Gerhard MitterColin Davis Gerhard Mitter | Porsche 904 /8 | Porsche 1981cc F8 | 244 | Wikipedia contributors · CC BY-SA 4.0 |
| 1964 · 1964 24 Hours of Le Mans | DNP | 62 (reserve) | GT 2.0 | Racing Team Holland | Carel Godin de Beaufort · Gerhard MitterCarel Godin de Beaufort Gerhard Mitter | Porsche 904 /4 GTS | Porsche 1967cc F4 | | Wikipedia contributors · CC BY-SA 4.0 |
| 1964 · Grand Prix Reims 12 Hours | 6 | 42 | 2. GT2.0 | Porsche System Engineering | Gerhard Koch · Gerhard Mitter | Porsche 904 GTS | — | 271 | WSPR historical record |
| 1964 · 1000 km de Paris, Montlhéry | retired | 31 | P2.0 | Porsche System Engineering | Herbert Linge · Gerhard Mitter | Porsche 904/6 | — | 62 | WSPR historical record |
| 1964 · 1000 km Nürburgring | entry_only | 60 | GT2.0 | Carel Godin de Beaufort | Gerhard Mitter | Porsche 904 GTS | — | | WSPR historical record |
| 1964 · 1000 km Nürburgring | 12 | 46 | 7. GT2.0 | US Porsche System Engineerin | Herbert Linge · Gerhard Mitter | Porsche 904 GTS ASK | — | g | WSPR historical record |
| 1962 · VIII. Int. ADAC 1000 km Nürburgring | did_not_start | 26 | GT1.6 | Gerhard Mitter | Eberhard Rank · Gerhard Mitter | Porsche 356B 1600 | — | | WSPR historical record |