| 25.3.1973 | 4 h Monza | 11 | | Birrell | Ford Köln | DNF |
| 25.3.1973 | 4 h Monza | 12 | | Mass / Scheckter | Ford Köln | 2nd |
| 25.3.1973 | 4 h Monza | 14 | | Krebs / Kautz | Ford Gerstmann Racing Team | 4th |
| 25.3.1973 | 4 h Monza | 19 | | Ruiz-Gimenez / Mesia | Escuderia Pepsi | 3rd |
| 25.3.1973 | 4 h Monza | | | Odenthal / Fritzinger | Ford Odenthal | 5th |
| 25.3.1973 | 4 h Monza | | | "Esap" / "Tatog" | Scuderia San Marco | DNF |
| 1.4.1973 | Le Mans Test | 49 | | Charles / Piot | Jean-Francois Piot | 32nd |
| 1.4.1973 | 4 h Le Mans | 72 | | Birrell / Heyer | Ford Motorenwerke | DNF |
| 1.4.1973 | Le Mans Test | 80 | | Cyril Grandet | Shark Racing | 31st |
| 15.4.1973 | Trans-Am Road Atlanta | 3 | | Theodoracopulos / Kwech | Ausca, Inc. | 16th |
| 15.4.1973 | Trans-Am Road Atlanta | 4 | | Harry Theodoracopulos | | DNA |
| 29.4.1973 | DRM Nürburgring Eifelrennen | 3 | | Waltraud Odenthal | Ford Odenthal | DNS |
| 29.4.1973 | DRM Nürburgring Eifelrennen | 4 | | Karl-Ludwig Weiss | Ford-Tuning Siegen B. Grab | 8th |
| 29.4.1973 | Sweden Knutstorp | 4 | | Boo Johansson | Ge-Kås Kläder | 2nd |
| 29.4.1973 | DRM Nürburgring Eifelrennen | 5 | | Hartmut Kautz | Gerstmann-Racing-Team | 5th |
| 29.4.1973 | Sweden Knutstorp | 6 | | Bo Ridström | Schack Kiwi Racing | DNF |
| 29.4.1973 | DRM Nürburgring Eifelrennen | 8 | | Klaus Fritzinger | Klaus Fritzinger | 3rd |
| 29.4.1973 | DRM Nürburgring Eifelrennen | 14 | | Klaus Ludwig | Team General-Anzeiger | 9th |
| 29.4.1973 | DRM Nürburgring Eifelrennen | 23 | | Hubert Richarz | Renngemeinschaft Sieglar e. V. | 14th |
| 5.5.1973 | Trans-Am Lime Rock | | | Kwech / Theodoracopulos | Ausca, Inc. | DNS |
| 6.5.1973 | 1000 km Spa | 63 | | Kautz / Christmann / Krebs | | DNF |
| 13.5.1973 | Sweden Mantorp Park | | | Bo Ridström | Schack Kiwi Racing | 6th |
| 13.5.1973 | Sweden Mantorp Park | | | Boo Johansson | Ge-Kås Kläder | 4th |
| 20.5.1973 | NTK Zandvoort | 84 | | Han Akersloot | Team Nederlandsche Middenstands Bank | 2nd |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | | | Klaus Fritzinger | Klaus Fritzinger | ?th |
| 20.5.1973 | 4 h Salzburgring | | | Birrell / Larrousse | Ford Köln | DNS |
| 27.5.1973 | Dalsland [T+1.3/GT3.0] | 4 | | Boo Johansson | Ge-Kås Kläder Bean-Plast | 1st |
| 27.5.1973 | 1000 km Nürburgring | 77 | | Heyer / Scheckter | Ford | DNA |
| 27.5.1973 | 1000 km Nürburgring | 78 | | Pinske / Ludwig | Team General Anzeiger | 21st |
| 3.6.1973 | 500 km Mantorp Park | 8 | | Ridström / Green | | 4th |
| 3.6.1973 | 500 km Mantorp Park | | | Johansson / Ljungfeldt | | 3rd |
| 3.6.1973 | 500 km Mantorp Park | | | Odenthal / Kautz | | DNS |
| 10.6.1973 | 24 h Le Mans | 53 | | Koinigg / Vinatier / Birrell | Ford | DNF |
| 10.6.1973 | 24 h Le Mans | 54 | | Birrell / Heyer | Ford | DNF |
| 10.6.1973 | 24 h Le Mans | 80 | | Guérie / Grandet / Bonnemaison | Shark Racing | DNA |
| 10.6.1973 | NTK Zandvoort | 84 | | Han Akersloot | Team Nederlandsche Middenstands Bank | 1st |
| 16.6.1973 | Trans-Am Watkins Glen | 3 | | Horst Kwech | Ausca, Inc. | DNS |
| 17.6.1973 | Anderstorp [T/GT] | 4 | | Boo Johansson | GeKås Kläder/Bean Plast | 1st |
| 17.6.1973 | Anderstorp [T/GT] | 6 | | Bo Ridström | Schack Kiwi Racing | DNA |
| 24.6.1973 | 24 h Nürburgring | 1 | | Heyer / Fritzinger | Ford Köln | 3rd |
| 24.6.1973 | 24 h Nürburgring | 9 | | Fahron / Heicker | Eichberg-Racing | DNF |
| 24.6.1973 | 24 h Nürburgring | 14 | | Sasse / Dören | Hasselbecker Racing Team | ?th |
| 24.6.1973 | 24 h Nürburgring | 21 | | Odenthal / Richarz | Ford Odenthal | DNF |
| 24.6.1973 | 24 h Nürburgring | 22 | | Lobo / Ludwig | Team General-Anzeiger Bonn | ?th |
| 1.7.1973 | DRM Mainz-Finthen | 1 | | Hans Heyer | Ford | 1st |
| 1.7.1973 | Avus [GT1.6/T+2.0] | 43 | | Günter Königsberg | Günter Königsberg | 4th |
| 1.7.1973 | DRM Mainz-Finthen | | | Klaus Fritzinger | Klaus Fritzinger | DNF |
| 1.7.1973 | DRM Mainz-Finthen | | | Karl-Ludwig Weiss | Ford Tuning Siegen - B. Grab | 4th |
| 1.7.1973 | Avus [GT1.6/T+2.0] | | | Manfred Balzereit | Manfred Balzereit | 1st |
| 8.7.1973 | 6 h Nürburgring | 4 | | Mesia / Ruiz-Gimenez | | DNF |
| 8.7.1973 | 6 h Nürburgring | 6 | | Weiss / Ludwig | Ford-Tuning Siegen, B. Grab | 5th |
| 8.7.1973 | 6 h Nürburgring | 9 | | Fritzinger / Heyer | Team Europa-Möbel | 10th |
| 8.7.1973 | 6 h Nürburgring | | | Schmidt / Starke | Ford Tuning Seigen | DNF |
| 15.7.1973 | 6 h Mid-Ohio | 3 | | Theodoracopulos / Kwech | Ausca, Inc. | 3rd |
| 15.7.1973 | Sweden Falkenberg | 4 | | Boo Johansson | Ge-Kås Kläder | 2nd |
| 15.7.1973 | Sweden Falkenberg | 6 | | Bo Ridström | Schack Kiwi Racing | 15th |
| 15.7.1973 | DRM Diepholz | - | | Klaus Fritzinger | Klaus Fritzinger | 4th |
| 15.7.1973 | DRM Diepholz | | | Hans Heyer | Ford Köln | 2nd |
| 15.7.1973 | DARM Hockenheim [T+2.0/GT1.6] | | | Karl-Ludwig Weiss | Ford-Tuning Siegen, B. Grab | 3rd |
| 15.7.1973 | DRM Diepholz | | | Waltraud Odenthal | Ford Odenthal | 7th |
| 21.7.1973 | 6 h Watkins Glen | 3 | | Theodoracopulos / Kwech | Ausca, Inc. | DNF |
| 22.7.1973 | 24 h Spa | 2 | | John Fitzpatrick | Ford | DNA |
| 22.7.1973 | 24 h Spa | 5 | | Ruiz-Gimenez / Mesia | Ford Gerstmann Racing Team | DNF |
| 29.7.1973 | NTK Zandvoort | 84 | | Han Akersloot | Team Nederlandsche Middenstands Bank | 1st |
| 29.7.1973 | NTK Zandvoort | 86 | | Hans Hugenholtz, Sr. | Team Nederlandsche Middenstands Bank | ?th |
| 5.8.1973 | DRM Nürburgring GP | 2 | | | Ford | DNA |
| 5.8.1973 | DRM Nürburgring GP | 6 | | Boo Johansson | Brasta Racing | 5th |
| 5.8.1973 | DRM Nürburgring GP | 7 | | Karl-Ludwig Weiss | Ford Tuning Siegen Bernhard Grab | 10th |
| 5.8.1973 | DRM Nürburgring GP | 8 | | Klaus Fritzinger | Team Europa Möbel | 24th |
| 5.8.1973 | DRM Nürburgring GP | 10 | | Bo Ridström | Schack Kiwi Racing | DNA |
| 5.8.1973 | DRM Nürburgring GP | 14 | | Klaus Ludwig | Team General Anzeiger | 9th |
| 5.8.1973 | DRM Nürburgring GP | 17 | | Willy Krumbach | Scuderia Colonia e. V. im DMV | DNF |
| 5.8.1973 | DRM Nürburgring GP | 25 | | Waltraud Odenthal | Ford Tuning Siegen Bernhard Grab | DNF |
| 12.8.1973 | 4 h Zandvoort | 3 | | Fritzinger / Akersloot | Ford | 4th |
| 12.8.1973 | 4 h Zandvoort | 4 | | Akersloot / Fritzinger | Han Akersloot | DNA |
| 12.8.1973 | 4 h Zandvoort | 5 | | Ruiz-Gimenez / Mesia | Ford Gerstmann Racing Team | DNF |
| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 7 | | Boo Johansson | Ge-Kås Kläder | 1st |
| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 12 | | Bo Ridström | Schack Kiwi Racing | 4th |
| 19.8.1973 | DRM Kassel-Calden | 1 | | Hans Heyer | Ford | 2nd |
| 19.8.1973 | DRM Kassel-Calden | | | Waltraud Odenthal | Ford Odenthal | ?th |
| 19.8.1973 | DRM Kassel-Calden | | | Klaus Fritzinger | Klaus Fritzinger | 3rd |
| 19.8.1973 | DRM Kassel-Calden | | | Klaus Ludwig | Team General Anzeiger | ?th |
| 19.8.1973 | DRM Kassel-Calden | | | Karl-Ludwig Weiss | Ford-Tuning - B. Grab | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 39 | | Hans Heyer | Ford-Werke AG | 1st |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 40 | | Klaus Fritzinger | Klaus Fritzinger | 7th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 41 | | Karl-Ludwig Weiss | Ford Tuning Siegen Grab | 8th |
| 1973 | Ronde Cévenole | | | J.-C. Imbert | | 19th |
| 1973 | Ronde Cévenole | | | G. Imbert | | 13th |