| 12.8.1973 | Can-Am Mid-Ohio | 0 | 917/10 TC | Jody Scheckter | Vasek Polak | DNF |
| 12.8.1973 | Can-Am Mid-Ohio | 3 | 917/10 | Steve Durst | Vasek Polak | 10th |
| 12.8.1973 | Can-Am Mid-Ohio | 4 | 917/10 TC | Hans Wiedmer | Vasek Polak | DNF |
| 12.8.1973 | Can-Am Mid-Ohio | 5 | 917/10 TC | Willi Kauhsen | Willi Kauhsen Racing | DNF |
| 12.8.1973 | Can-Am Mid-Ohio | 6 | 917/30 TC | Mark Donohue | Penske Racing/Sunoco | 1st |
| 12.8.1973 | Can-Am Mid-Ohio | 16 | 917/10 TC | George Follmer | Rinzler Motoracing/R-C Cola | 2nd |
| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 21 | 911 | Kenneth Leim | Team Blå Racing | DNA |
| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 22 | | Hans Wallberg | | DNA |
| 12.8.1973 | Can-Am Mid-Ohio | 23 | 917/10 TC | Charlie Kemp | Rinzler Motoracing/R-C Cola | DNS |
| 12.8.1973 | Can-Am Mid-Ohio | 59 | 917/10 TC | Hurley Haywood | Brumos Porsche/Go Navy | 3rd |
| 12.8.1973 | Hessen Hockenheim [GT] | | 914/6 | Peter Karl Nowak | Sixtant-Racing Team | ?th |
| 12.8.1973 | Hessen Hockenheim [GT] | | | Peter Ehlert | Sixtant-Racing Team | ?th |
| 12.8.1973 | Hessen Hockenheim [GT] | | | Reinhold Ernst | Reinhold Ernst | ?th |
| 12.8.1973 | Hessen Hockenheim [GT] | | 911 S | Gerhard Holup | Gerhard Holup | DNF |
| 12.8.1973 | Hessen Hockenheim [GT] | | 914/6 | Walter Bauer | Autohaus Max Moritz | ?th |
| 19.8.1973 | Interserie Misano | 1 | 917/10 TC | Leo Kinnunen | Motorsport-Club Stuttgart/Racing Team AAW | 1st |
| 19.8.1973 | Interserie Misano | 2 | 917/10 TC | Willi Kauhsen | Willi Kauhsen Racing Team | 4th |
| 19.8.1973 | Interserie Misano | 3 | 917/30 TC | Helmut Kelleners | Felder Racing Team | 5th |
| 19.8.1973 | DRM Kassel-Calden | 4 | 911 Carrera RSR | Clemens Schickentanz | Oldenkott-Tobacco and Pipes-Racing | DNF |
| 19.8.1973 | Interserie Misano | 5 | 917/10 | Ernst Kraus | Boeri-Helmets-Racing-Team | 2nd |
| 19.8.1973 | DRM Kassel-Calden | 5 | 911 Carrera RSR 2.8 | Günter Steckkönig | Manfred Weißmann Vorhangschienen | ?th |
| 19.8.1973 | Interserie Misano | 6? | 917/10 TC | Georg Loos | Gelo Racing Team | DNF |
| 19.8.1973 | Trans-Am Edmonton | 6 | 911 | Wachs / Dickinson | Napa Panzer | DNA |
| 19.8.1973 | 500 km Benguela | 7 | 906 | Herculano Areias | | DNF |
| 19.8.1973 | Trans-Am Edmonton | 9 | 911 Carrera RSR 2.8 | Bob Hagestad | Bob Hagestad Porsche Audi | 5th |
| 19.8.1973 | Interserie Misano | 9 | 908/03 | Reinhold Jöst | ATE | 3rd |
| 19.8.1973 | Trans-Am Edmonton | 14 | 911 Carrera RSR | Holbert / Minter | Holbert's Porsche Audi | 4th |
| 19.8.1973 | Interserie Misano | 23 | 917 Spyder | Jürgen Barth | Gelo Racing Team | 6th |
| 19.8.1973 | Interserie Misano | 45 | 908/02 K | | | raced |
| 19.8.1973 | Interserie Misano | 47 | 917 Spyder | Lasse Sirviö | Racing Team AAW | 8th |
| 19.8.1973 | DRM Kassel-Calden | 58 | 914/6 | Hans Christian Jürgensen | Hans-Christian Jürgensen | DNA |
| 19.8.1973 | Trans-Am Edmonton | 59 | 911 Carrera RSR 2.8 | Peter Gregg | Brumo's Porsche Audi | 2nd |
| 19.8.1973 | DRM Kassel-Calden | 59 | 911 S | Hans Hargarten | Hans Hargarten | ?th |
| 19.8.1973 | DRM Kassel-Calden | 68 | 911 THR | Reinhold Ernst | Reinhold Ernst | DNA |
| 19.8.1973 | Trans-Am Edmonton | 74 | 911 S | Ludwig Heimrath | Heimrath Racing | 6th |
| 19.8.1973 | Trans-Am Edmonton | 89 | 911 S | Don Parish | Barrick Motor Racing | 7th |
| 19.8.1973 | Interserie Misano | | 910 | | | raced |
| 19.8.1973 | DRM Kassel-Calden | | 911 Carrera RSR 2.8 | Eugen Kiemele | Eugen Kiemele | ?th |
| 19.8.1973 | DRM Kassel-Calden | | 911 S | Horst Kloft | Horst Kloft | DNF |
| 19.8.1973 | DRM Kassel-Calden | | 911 Carrera RSR 2.8 | Richard Leder | Richard Leder | ?th |
| 19.8.1973 | DRM Kassel-Calden | | 911 Carrera RSR | Reinhardt Stenzel | Reinhardt Stenzel | ?th |
| 19.8.1973 | Interserie Misano | | 917 Spyder | Albert Pfuhl | Auto-Fox-Racing | raced |
| 19.8.1973 | DRM Kassel-Calden | | 911 Carrera RSR 2.8 | Eberhard Sindel | Eberhard Sindel | DNF |
| 26.8.1973 | Euro GT Hockenheim | 4 | 911 Carrera RSR 2.8 | Claude Ballot-Léna | Claude Ballot-Lena | 4th |
| 26.8.1973 | Euro GT Hockenheim | 5 | 911 Carrera RSR | Martin Birrane | Crowne Racing Ltd. | DNA |
| 26.8.1973 | Euro GT Hockenheim | 7 | 911 Carrera RSR | Bengt Ekberg | Team Kubero Racing | 5th |
| 26.8.1973 | Euro GT Hockenheim | 9 | 911 Carrera RSR | Roland Larsson | Roland Larsson | DNA |
| 26.8.1973 | Euro GT Hockenheim | 12 | 911 Carrera | John Rulon-Miller | Gante Racing | DNA |
| 26.8.1973 | Euro GT Hockenheim | 15 | 911 Carrera RSR | Bernard Chenevière | Bernard Chenevière | DNA |
| 26.8.1973 | Euro GT Hockenheim | 16 | 911 Carrera RSR 2.8 | Fredy Lienhard | Lista Racing Team | DNA |
| 26.8.1973 | Euro GT Hockenheim | 21 | 911 Carrera RSR | Clemens Schickentanz | Porsche Kremer Racing Team | 2nd |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 21 | 911 Carrera RSR | Clemens Schickentanz | Porsche Kremer Racing Team | 2nd |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 22 | 911 Carrera RSR 2.8 | Günter Steckkönig | Manfred Weissmann | 3rd |
| 26.8.1973 | Euro GT Hockenheim | 23 | 911 Carrera RSR | Reinhardt Stenzel | Reinhardt Stenzel | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 23 | 911 Carrera RSR | Reinhardt Stenzel | Reinhardt Stenzel | DNF |
| 26.8.1973 | Euro GT Hockenheim | 24 | 911 Carrera RSR 2.8 | Eberhard Sindel | Rallyegemeinschaft, Ulm | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 24 | 911 Carrera RSR 2.8 | Eberhard Sindel | Rallyegemeinschaft Ulm | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 25 | 911 Carrera RSR 2.8 | Richard Leder | Team Firestone | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 26 | 911 Carrera RSR 2.8 | Eugen Kiemele | Eugen Kiemele | 6th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 27 | 911 Carrera RSR | Georg Loos | Gelo Racing Team | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 48 | 911 Carrera RSR 2.8 | Claude Haldi | Porsche Club Romand | ?th |
| 26.8.1973 | Euro GT Hockenheim | 48 | 911 Carrera RSR 2.8 | Claude Haldi | Porsche Club Romand | 3rd |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 49 | 911 Carrera | Hermann Schaffert | F. R. C. | DNA |
| 26.8.1973 | Euro GT Hockenheim | 50 | 911 Carrera RSR 2.8 | Peter Bernhard | Peter Bernhard | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 50 | 911 Carrera RSR 2.8 | Peter Bernhard | Peter Bernhard | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 51 | 911 Carrera | Kurt Peter | Kurt Peter | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 52 | 911 Carrera | Markus Hotz | Lista Racing Team | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 53 | 911 Carrera | Edy Brandenberger | Scuderia Basilea | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 54 | 911 Carrera RS | Edi Kofel | Mascotte Racing Team | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 55 | 911 Carrera | Jürgen Krzikalla | Jürgen Krzikalla | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 56 | 911 Carrera RSR | Josef Brambring | Porsche Kremer Racing Team | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 57 | 911 Carrera RSR 2.8 | Theo Hofer | Lista Racing Team | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 58 | 911 S | Charly Schirmer | F. R. C. | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 59 | 911 S | Harry Blumer | Gulf Racing Team | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 60 | 911 S | Max Müller | F. R. C. | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 61 | 911 S | Heinz Grieder | Heinz Rieder | ?th |
| 26.8.1973 | Euro GT Hockenheim | 70 | 911 | Dieter Franke | Sixtant Racing Team | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 70 | 911 | Dieter Franke | Sixtant Racing Team | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 74 | 914/6 | Hans Stähli | F. R. C. | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 75 | 914/6 | Emilio Pegger | Emilio Pegger | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 77 | 911 S | Walter aus der Au | Mascotte Racing Team | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 78 | 914/6 | Walter Bauer | Autohaus Max Moritz GmbH | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 79 | 911 | Reinhold Ernst | Reinhold Ernst | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 80 | 914/6 | "Ronald Knudel" | MHSTC | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 81 | 914/6 | Hermann Schlüter | Hans-Hermann Schlüter | DNA |
| 26.8.1973 | Zolder [GT/S] | 145 | 911 Carrera | Eckard Babendererde | Eckard Babendererde | ?th |
| 26.8.1973 | Zolder [GT/S] | 146 | 911 Carrera RS | Heinz Blind | Heinz Blind | ?th |
| 26.8.1973 | Zolder [GT/S] | 147 | 911 Carrera RS | Hans Halfmann | Hans Halfmann | DNF |
| 26.8.1973 | Zolder [GT/S] | 148 | 911 Carrera RS | Klaus Herig | Vereinigung Berliner Automobilsportler e.V. | ?th |
| 26.8.1973 | Zolder [GT/S] | 149 | 911 T | Bernd Renneisen | Bernd Brenneisen | ?th |
| 26.8.1973 | Zolder [GT/S] | 150 | 911 Carrera RS | Rolf Rosenkranz | Rolf Rosenkranz | ?th |
| 26.8.1973 | Zolder [GT/S] | 151 | 911 SC | Werner Runkel | Motorsportclub Scuderia Gedem e. V. im ADAC | ?th |
| 26.8.1973 | Zolder [GT/S] | 152 | 911 S | Ernst Zupp | | DNA |
| 26.8.1973 | Zolder [GT/S] | | 911 S | Karl Heinz Schramm | K. H. Schramm | ?th |
| 26.8.1973 | Zolder [GT/S] | | 911 S | Holger Zeller | Holger Zeller | ?th |
| 26.8.1973 | Zolder [GT/S] | | 914/6 | Hubert Schlieckmann | H. Schlieckmann | DNF |
| 26.8.1973 | Zolder [GT/S] | | 911 SC | Hartmut Jacques | Hartmut Jacques | DNF |
| 26.8.1973 | Zandvoort [GT/T] | | 911 Carrera RSR | Nico Chiotakis | | 1st |
| 26.8.1973 | Zandvoort [GT/T] | | | Kallmann | | ?th |
| 26.8.1973 | Zandvoort [GT/T] | | | Norbert van Hoffel | | 5th |