| 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 · ADAC 1000 kilometres Nürburgring | 31 | 2 | 7. P3.0 | Porsche System Engineering | Gerhard Mitter · Udo Schütz | Porsche 908/02 | — | 34 | WSPR historical record |
| 1968 · 24 h Daytona | 5 | 20 | 4. P | Autodelta SpA | Udo Schütz · Nino Vaccarella | Alfa Romeo T33/2 | — | 617 | WSPR historical record |
| 1968 · BOAC 500, Brands Hatch | retired | 43 | P2.0 | Autodelta SpA | Lucien Bianchi · Udo Schütz | Alfa Romeo T33/2 | — | 125 | WSPR historical record |
| 1968 · 1000 km Monza | entry_only | 23 | P2.0 | Autodelta | Udo Schütz · Giancarlo Baghetti | Alfa Romeo 33/2 | — | | WSPR historical record |
| 1968 · 52nd Targa Florio, Piccolo Madonie | retired | 220 | P3.0 | todelta SpA | Nino Vaccarella · Udo Schütz | Alfa Romeo T33/2.5 ASK US Au | — | 3 | WSPR historical record |
| 1968 · 1000 km Nürburgring | 7 | 5 | P3.0 4 | fa Romeo Deutschland 4 | Udo Schütz · Lucien Bianchi | Alfa Romeo T33/2.5 ASK US Al | — | 2 | WSPR historical record |
| 1968 · 1000 km Spa | entry_only | 15 | P3.0 | Autodelta | Lucien Bianchi · Udo Schütz | Alfa Romeo T33/2 | — | | WSPR historical record |
| 1967 · 1967 24 Hours of Le Mans | DNF | 39 | P 2.0 | Porsche System Engineering | Udo SchützUdo Schütz Joe Buzzetta | Porsche 910 langheck | Porsche 1991cc F6 | 84 | Wikipedia contributors · CC BY-SA 4.0 |
| 1967 · 24 h Daytona | retired | 53 | P2.0 | Porsche System Engineering | Udo Schütz · Rolf Stommelen · Gijs van Lennep | Porsche 906 | — | 170 | WSPR historical record |
| 1967 · BOAC 500 Brands Hatch | 11 | 25 | 2. P2.0 | Porsche System Engineering | Udo Schütz · Jochen Rindt · DNS - Gerhard Koch | Porsche 910 | — | 195 | WSPR historical record |
| 1967 · Sports Car Grand Prix Österreich, Zeltweg | retired | 16 | S2.0 | Scuderia Lufthansa | Udo Schütz · Hans Herrmann | Porsche 906 | — | 6 | WSPR historical record |
| 1967 · Ollon-Villars, Swiss Mountain Grand Prix | 70 | 69 | 8. T1.15 | Abarth Switzerland | Udo Schütz | Fiat-Abarth 1000 | — | 2 | WSPR historical record |
| 1967 · 12 h Sebring | 36 | 39 | P2.0 | Porsche System Engineering | Udo Schütz · Gijs van Lennep · Rolf Stommelen | Porsche 906 | — | 156 | WSPR historical record |
| 1967 · 1000 km Monza | 8 | 43 | 1. S2.0 | Porsche System Engineering | Udo Schütz · Jochen Neerspasch | Porsche 906 | — | 92 | WSPR historical record |
| 1967 · 1000 km Spa | did_not_start | 53 | S2.0 | Autosport International/Por | Jochen Neerspasch · Udo Schütz | Porsche 906 | — | | WSPR historical record |
| 1967 · 51st Targa Florio, Piccolo Madonie | retired | 184 | P2.0 | Porsche System Engineering | Umberto Maglioli · Udo Schütz | Porsche 910 | — | 8 | 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 | 1 | 17 | 1. P2.0 | Porsche System Engineering | Udo Schütz · Joe Buzzetta | Porsche 910 | — | 44 | 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 · 1966 24 Hours of Le Mans | 6 | 32 | P 2.0 | Porsche System Engineering | Udo Schütz · Peter de KlerkUdo Schütz Peter de Klerk | Porsche 906 /6 LH | Porsche 1991cc F6 | 337 | Wikipedia contributors · CC BY-SA 4.0 |
| 1966 · 24 h Daytona | 8 | 17 | 2. S2.0 | Porsche System Engineering | Günther Klass · Udo Schütz | Porsche 904 GTS | — | 610 | WSPR historical record |
| 1966 · Grand Prix Hockenheim | 4 | 25 | 1. S2.0 | Lufthansa | Udo Schütz | Porsche 906 | — | 74 | WSPR historical record |
| 1966 · 500 km Nürburgring | 34 | 5 | P1.3 | Abarth | Udo Schütz | Abarth 1300SP | — | 16 | WSPR historical record |
| 1966 · Austrian Sports Car Grand Prix, Zeltweg | 3 | 15 | 3. S2.0 | Lufthansa | Udo Schütz · Herbert Linge | Porsche 906 | — | 154 | WSPR historical record |
| 1966 · 12 h Sebring | 40 | 55 | S2.0 | US Porsche System Engineerin | Udo Schütz · Dieter Glemser | Porsche 904 GTS ASK | — | g 1 | WSPR historical record |
| 1966 · 1000 km Monza | retired | 33 | P2.0 | Gerhard Koch | Gerhard Koch · Udo Schütz | Porsche 906 | — | | WSPR historical record |
| 1966 · 1000 km Spa | retired | 54 | S2.0 | Porsche System Engineering | Gerhard Koch · Udo Schütz | Porsche 906 | — | | WSPR historical record |
| 1966 · ADAC - 1000 km Nürburgring | retired | 16 | P2.0 | Porsche System Engineering | Udo Schütz · Günther Klass | Porsche 906 E | — | 27 | WSPR historical record |
| 1965 · Alpen Bergpreiss, Rossfeld Mountain Grand Prix | 8 | 27 | 5. GT2.0 | Udo Schütz | Udo Schütz | Porsche 904 GTS | — | 2 | WSPR historical record |
| 1965 · 500 km Nürburgring | retired | 40 | GT1.3 | Scuderia Lufthansa | Udo Schütz · Robert F. Huhn | Abarth 1300 OT | — | 4 | WSPR historical record |
| 1965 · XI. Int. ADAC 1000 Kilometers Rennen Nürburgring | 11 | 72 | 1. GT2.0 | Anton Fischhaber | Anton Fischhaber · Udo Schütz | Porsche 904 GTS | — | 42 | WSPR historical record |
| 1964 · Grosser Bergpreis Freiburg-Schauinsland | 14 | 56 | 6. GT2.0 | Scuderia Filipinetti | Udo Schütz | Porsche 904 GTS | — | 2 | WSPR historical record |
| 1964 · Alpenbergpreis Rossfeld | 12 | 62 | 5. GT2.0 | US Udo Schütz | Udo Schütz | Porsche 904 GTS ASK | — | | WSPR historical record |