| 13.5.1973 | Targa Florio | 1 | 908/03 | Haldi / Chenevière | Porsche Club Romand | DNS |
| 13.5.1973 | Targa Florio | 106 | 911 Carrera RSR | Borri / Barone | Scuderia Brescia Corse | 7th |
| 13.5.1973 | Targa Florio | 107 | 911 Carrera RSR | Pucci / Steckkönig | Martini Racing | DNQ |
| 13.5.1973 | Targa Florio | 107T | 911 Carrera RSR | Steckkönig / Pucci | Martini Racing | 6th |
| 13.5.1973 | Targa Florio | 109 | 911 S | Fossati / Mola | Guido Fossati | 14th |
| 13.5.1973 | Targa Florio | 111 | 911 | Radicella / Micangeli | Mario Radicella | DNF |
| 13.5.1973 | Targa Florio | 112 | 911 Carrera RSR 2.8 | Quist / Zink | Max Moritz Racing Team | DNF |
| 13.5.1973 | Targa Florio | 113 | 911 Carrera RSR 2.8 | Zbinden / Ilotte | Porsche Club Romand | 8th |
| 13.5.1973 | Targa Florio | 114 | 911 S | Patania / "Carab" | Salvatore Patamia | DNF |
| 13.5.1973 | Targa Florio | 122 | 911 | Pizzo / Serse | | DNA |
| 13.5.1973 | Targa Florio | 123 | 914/6 | Nieri / Fabri | Carlo Fabri | 36th |
| 13.5.1973 | Targa Florio | 124 | 911 ST | Capra / Lepri | Girolama Capra | 12th |
| 13.5.1973 | Targa Florio | 126 | 911 S | Maione / Vigneri | Scuderia Pegaso | DNF |
| 13.5.1973 | Targa Florio | 127 | 914/6 | Mannino / de Gregorio | Giuseppe de Gregorio | 21st |
| 13.5.1973 | Targa Florio | 131 | 911 T | Runfola / Benvenuti | Vittorio Benvenuti | DNF |
| 13.5.1973 | Targa Florio | T | 911 Carrera RS | van Lennep / Müller | Martini Racing | T-car |
| 20.5.1973 | Interserie Silverstone | 1 | 917/10 TC | Leo Kinnunen | Motorsport-Club Stuttgart/Racing Team AAW | 1st |
| 20.5.1973 | Interserie Silverstone | 2 | 917/10 TC | Willi Kauhsen | Willi Kauhsen Racing Team | 2nd |
| 20.5.1973 | Interserie Silverstone | 5 | 917/10 | Ernst Kraus | Boeri Helmets Racing Team | 4th |
| 20.5.1973 | Interserie Silverstone | 6 | 917/10 TC | Georg Loos | Gelo Racing Team | 3rd |
| 20.5.1973 | Interserie Silverstone | 11 | 917/10 | Günter Steckkönig | Willi Kauhsen Racing Team | 6th |
| 20.5.1973 | Interserie Silverstone | 16 | 917/10 TC | Charlie Kemp | Rinzler Motoracing Inc. | DNA |
| 20.5.1973 | Interserie Silverstone | 44 | 917 Spyder | Albert Pfuhl | Albert Pfuhl | DNA |
| 20.5.1973 | NTK Zandvoort | 81 | 911 Carrera RSR | Nico Chiotakis | Team 4711 Sir Irish Moss | 1st |
| 20.5.1973 | La Châtre [S] | 96 | 910 | Jacques Crubile | Crubile | 6th |
| 20.5.1973 | La Châtre [S] | 107 | 906 | Robert Fevrier | Fevrier | 7th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 200 | 914/6 | Horst Godel | sixtant-Racing Team | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 201 | 911 T | Alfred Kunze | Alfred Kunze | DNA |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 202 | 914/6 | Eckhard Schimpf | Jägermeister-Racing Team | 14th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 203 | 911 T | Peter Ehlert | Sixtant-Racing Team | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 204 | 911 T | Dieter Franke | Dieter Franke | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 205 | 911 T | Harald Grohs | Harald Grohs | DNF |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 206 | 914/6 | Lothar Ohren | Lothar Ohren | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 207 | 914/6 | Robert Frostrom | Robert J. Frostrom | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 208 | 911 T | Manfred Sommer | Manfred Sommer | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 209 | 911 T | Horst Klauke | Braun-Sixtand R.T. | DNA |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 210 | 914/6 | Hans Stähli | FRC Zürich | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 211 | 911 S | Walter aus der Au | Mascotte Racing Team | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 212 | 911 Carrera RSR | Karl-Heinz Jacoby | Vorhangschienen M. Weiss | DNA |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 213 | 911 S | Horst Kloft | Horst Kloft | 3rd |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 214 | 911 Carrera RSR | John Russel | John K. Russell | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 215 | 911 S | Heinz-Jörgen Dahmen | Heinz-Jörg Dahmen | DNA |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 217 | 911 Carrera RS | Hermann Schaffert | FRC Zürich | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 218 | 911 Carrera | Ernst Brühweiler | Ecurie Basilisk | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 220 | 911 S | Max Müller | FRC Zürich | 7th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 221 | 911 Carrera RS | Jean von Kaenel | FRC Zürich | ?th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 222 | 911 S | Heinz Grieder | FRC Zürich | 5th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 223 | 911 Carrera RSR 2.8 | Peter Bernhard | Peter Bernhard | 6th |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | 224 | 911 Carrera RSR 2.8 | Karl Foitek | Karl Foitek | DNA |
| 20.5.1973 | DARM Salzburgring | | 911 T | Peter Paradeiser | Peter Paradeiser | ?th |
| 20.5.1973 | DARM Salzburgring | | 911 Carrera RSR 2.8 | Eugen Kiemele | Eugen Kiemele | 1st |
| 20.5.1973 | DARM Salzburgring | | 911 S | Hans Hargarten | Hans Hargarten | ?th |
| 20.5.1973 | DARM Salzburgring | | 911 S | Willy Rabl | Wilhelm Rabl | ?th |
| 20.5.1973 | DARM Salzburgring | | 911 Carrera | Heinz-Otto Raufer | Porsche-Club, Nürnberg | 4th |
| 20.5.1973 | DARM Salzburgring | | 911 S | Helmut Königsdorff | Helmut Köningsdorff | 5th |
| 20.5.1973 | DARM Salzburgring | | 911 Carrera RSR 2.8 | Eberhard Sindel | Rallyegemeinschaft Ulm | 2nd |
| 20.5.1973 | DARM Salzburgring | | 911 S | Thomas Datzmann | Thomas Datzmann | 3rd |
| 20.5.1973 | SM Hockenheim [Sports] | | 908 | Peter Peters | | 10th |
| 20.5.1973 | La Châtre [GT] | | 911 Carrera RS | Gérard Pirès | | 2nd |
| 20.5.1973 | La Châtre [GT] | | 911 S | Jean-Louis Chateau | | 1st |
| 20.5.1973 | SM Hockenheim [GT+1.6/T+2.0] | | 911 Carrera | Theo Hofer | | 2nd |
| 20.5.1973 | DARM Salzburgring | | 914/6 | Edgar Dören | Bergischer Motorclub | ?th |
| 20.5.1973 | DARM Salzburgring | | 911 T | Alfred Kunze | Alfred Kunze | ?th |
| 27.5.1973 | 1000 km Nürburgring | 3 | 908/03 | Haldi / Chenevière | Porsche Club Romand | 4th |
| 27.5.1973 | Coppa AGIP Monza [GT+1.6] | 3 | 911 Carrera RSR 2.8 | Ennio Bonomelli | Ennio Bonomelli | 1st |
| 27.5.1973 | 1000 km Nürburgring | 6 | 911 Carrera RSR | van Lennep / Müller | Martini Racing/Porsche AG | 5th |
| 27.5.1973 | 1000 km Nürburgring | 7 | 910 | Greger / Hild | Vereinigung Süddeutscher Automobilsportler | DNA |
| 27.5.1973 | 1000 km Nürburgring | 10 | 908/03 | Jöst / Casoni | Reinhold Jöst | DNS |
| 27.5.1973 | Dalsland [T+1.3/GT3.0] | 17 | 911 | Kenneth Leim | Team Blå | DNA |
| 27.5.1973 | 1000 km Nürburgring | 24 | 910 | Becker / Clever | Bernd Becker | 18th |
| 27.5.1973 | 1000 km Nürburgring | 48 | 911 Carrera RSR 2.8 | Zbinden / Bolomey / Fritzinger | Porsche Club Romand | DNF |
| 27.5.1973 | 1000 km Nürburgring | 49 | 911 Carrera RSR | Fischhaber / von Bayern | Toni Fischhaber | 14th |
| 27.5.1973 | 1000 km Nürburgring | 50 | 911 Carrera RSR | Ekberg / Simonsen / Larsson | Team Kubero Racing | 15th |
| 27.5.1973 | 1000 km Nürburgring | 51 | 911 S | Wagner / Babendererde | Lothar Wagner | 19th |
| 27.5.1973 | 1000 km Nürburgring | 52 | 911 Carrera RSR 2.8 | Sindel / Siegle | Team Europa-Möbel | 16th |
| 27.5.1973 | 1000 km Nürburgring | 53 | 911 Carrera RSR | Ziegler / Ziegler | Hanspeter Ziegler | DNS |
| 27.5.1973 | 1000 km Nürburgring | 54 | 911 Carrera RSR | Schickentanz / Keller / Steckkönig | Oldenkott Tobacco and Pipes Racing | 12th |
| 27.5.1973 | 1000 km Nürburgring | 55 | 911 Carrera RSR | Keller / Schickentanz / Neuhaus | Porsche Kremer Racing Team | 11th |
| 27.5.1973 | 1000 km Nürburgring | 56 | 911 Carrera RSR | | Porsche Kremer Racing Team | DNA |
| 27.5.1973 | 1000 km Nürburgring | 58 | 911 Carrera RSR 2.8 | Steckkönig / Fritzinger | M. Weissmann, Vorhangschienen-Fabrik | DNS |
| 27.5.1973 | 1000 km Nürburgring | 59 | 911 Carrera RSR | Barth / Loos | Gelo Racing Team | 13th |
| 27.5.1973 | 1000 km Nürburgring | 60 | 911 Carrera RSR | Bolanos / Nicastro | Juan C. Bolanos | DNF |
| 27.5.1973 | 1000 km Nürburgring | 62 | 911 T | Schimpf / Klauke / Rieder | Team Europa-Möbel | DNF |
| 27.5.1973 | 1000 km Nürburgring | 63 | 914/6 | Greger / Hild | Vereinigung Süddeutscher Automobilsportler | DNA |
| 27.5.1973 | 1000 km Nürburgring | 65 | 914/6 | Christmann / Hinse | Werner Christmann | DNS |
| 27.5.1973 | 1000 km Nürburgring | 66 | 911 Carrera RSR 2.8 | Follmer / Kauhsen | Martini Racing/Porsche AG | DNF |
| 27.5.1973 | Croix-en-Ternois [GT] | | 911 S | Kirschoffer | | 4th |
| 27.5.1973 | Croix-en-Ternois [ser.GT] | | 911 S | Méo | | 2nd |
| 27.5.1973 | Croix-en-Ternois [GT] | | 911 Carrera RS | Pirès | | 2nd |
| 27.5.1973 | Croix-en-Ternois [GT] | | 911 S | Chateau | | 1st |
| 27.5.1973 | Coppa AGIP Monza [GT+1.6] | | 911 Carrera RS | Borri | | 3rd |
| 27.5.1973 | Coppa AGIP Monza [GT+1.6] | | 911 ST | Capra | | 6th |
| 27.5.1973 | Coppa AGIP Monza [GT+1.6] | | 911 S | Rovida | | 7th |
| 2.6.1973 | Euro GT Imola | 81 | 911 Carrera RSR 2.8 | Ennio Bonomelli | Ennio Bonomelli | 18th |
| 2.6.1973 | Euro GT Imola | 82 | 911 Carrera RSR 2.8 | Claude Ballot-Léna | Sonauto | 3rd |
| 2.6.1973 | Euro GT Imola | 83 | 911 Carrera RSR | Helmut Henzler | | 5th |
| 2.6.1973 | Euro GT Imola | 85 | 911 Carrera RSR 2.8 | Charles Geeraerts | Royal Air Maroc | 7th |
| 2.6.1973 | Euro GT Imola | 87 | 911 Carrera RSR | Clemens Schickentanz | Porsche Kremer Racing | 2nd |
| 2.6.1973 | Euro GT Imola | 92 | 911 Carrera RSR 2.8 | Claude Haldi | Porsche Club Romand | 6th |
| 2.6.1973 | Euro GT Imola | | 911 Carrera RSR 2.8 | Eberhard Sindel | | 4th |