| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 30 | | Roland Larsson | Team Kybero-Porsche | 5th |
| 19.8.1973 | DRM Kassel-Calden | 4 | #911 360 0885 | Clemens Schickentanz | Oldenkott-Tobacco and Pipes-Racing | DNF |
| 19.8.1973 | DRM Kassel-Calden | 5 | #911 360 0921 | Günter Steckkönig | Manfred Weißmann Vorhangschienen | ?th |
| 19.8.1973 | Trans-Am Edmonton | 9 | | Bob Hagestad | Bob Hagestad Porsche Audi | 5th |
| 19.8.1973 | Trans-Am Edmonton | 14 | #911 360 0307 R3 | Holbert / Minter | Holbert's Porsche Audi | 4th |
| 19.8.1973 | Trans-Am Edmonton | 59 | #911 360 0727 | Peter Gregg | Brumo's Porsche Audi | 2nd |
| 19.8.1973 | DRM Kassel-Calden | | #911 360 1329 | Reinhardt Stenzel | Reinhardt Stenzel | ?th |
| 19.8.1973 | DRM Kassel-Calden | | #911 360 0791 | Richard Leder | Richard Leder | ?th |
| 19.8.1973 | DRM Kassel-Calden | | #911 360 0894 | Eugen Kiemele | Eugen Kiemele | ?th |
| 19.8.1973 | DRM Kassel-Calden | | #911 230 0818 | Eberhard Sindel | Eberhard Sindel | DNF |
| 26.8.1973 | Euro GT Hockenheim | 3 | | John Fitzpatrick | Porsche Kremer Racing Team | DNA |
| 26.8.1973 | Euro GT Hockenheim | 4 | #911 360 0643 | Claude Ballot-Léna | Claude Ballot-Lena | 4th |
| 26.8.1973 | Euro GT Hockenheim | 5 | #911 360 0185 | Martin Birrane | Crowne Racing Ltd. | DNA |
| 26.8.1973 | Euro GT Hockenheim | 6 | | Paul Keller | Porsche Kremer Racing Team | DNF |
| 26.8.1973 | Euro GT Hockenheim | 7 | #911 360 1045 | Bengt Ekberg | Team Kubero Racing | 5th |
| 26.8.1973 | Euro GT Hockenheim | 8 | | Kurt Simonsen | Kurt Simonsen | 7th |
| 26.8.1973 | Euro GT Hockenheim | 9 | | Roland Larsson | Roland Larsson | DNA |
| 26.8.1973 | Euro GT Hockenheim | 10 | #002 0005 | Ennio Bonomelli | Bonomelli Squadra Corse | 6th |
| 26.8.1973 | Euro GT Hockenheim | 11 | #911 360 1088 | Charles Geeraerts | Charles Geeraerts | 8th |
| 26.8.1973 | Euro GT Hockenheim | 12 | | John Rulon-Miller | Gante Racing | DNA |
| 26.8.1973 | Euro GT Hockenheim | 14 | | William Vollery | Porsche Club Romand | 16th |
| 26.8.1973 | Euro GT Hockenheim | 15 | | Bernard Chenevière | Bernard Chenevière | DNA |
| 26.8.1973 | Euro GT Hockenheim | 16 | #911 360 0837 | Fredy Lienhard | Lista Racing Team | DNA |
| 26.8.1973 | Euro GT Hockenheim | 17 | | Jan Lundgardh | Team Castrol | 12th |
| 26.8.1973 | Euro GT Hockenheim | 18 | | André Stuckelberger | Ecurie 13 Etoiles | NC |
| 26.8.1973 | Euro GT Hockenheim | 21 | #911 360 0885 | Clemens Schickentanz | Porsche Kremer Racing Team | 2nd |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 21 | #911 360 0885 | Clemens Schickentanz | Porsche Kremer Racing Team | 2nd |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 22 | #911 360 0921 | Günter Steckkönig | Manfred Weissmann | 3rd |
| 26.8.1973 | Euro GT Hockenheim | 22 | #911 360 0921 | Günter Steckkönig | Manfred Weissmann | DNF |
| 26.8.1973 | Euro GT Hockenheim | 23 | #911 360 1329 | Reinhardt Stenzel | Reinhardt Stenzel | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 23 | #911 360 1329 | Reinhardt Stenzel | Reinhardt Stenzel | DNF |
| 26.8.1973 | Euro GT Hockenheim | 24 | #911 230 0818 | Eberhard Sindel | Rallyegemeinschaft, Ulm | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 24 | #911 230 0818 | Eberhard Sindel | Rallyegemeinschaft Ulm | DNA |
| 26.8.1973 | Euro GT Hockenheim | 25 | #911 360 0791 | Richard Leder | Team Firestone | 9th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 25 | #911 360 0791 | Richard Leder | Team Firestone | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 26 | #911 360 0894 | Eugen Kiemele | Eugen Kiemele | 6th |
| 26.8.1973 | Euro GT Hockenheim | 26 | #911 360 0894 | Eugen Kiemele | Eugen Kiemele | 14th |
| 26.8.1973 | Euro GT Hockenheim | 27 | #911 360 0847 | Georg Loos | Gelo Racing Team | 11th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 27 | #911 360 0847 | Georg Loos | Gelo Racing Team | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 48 | #911 360 0659 | Claude Haldi | Porsche Club Romand | ?th |
| 26.8.1973 | Euro GT Hockenheim | 48 | #911 360 0659 | Claude Haldi | Porsche Club Romand | 3rd |
| 26.8.1973 | Euro GT Hockenheim | 49 | | Hermann Schaffert | F.R.C. | 19th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 49 | | Hermann Schaffert | F. R. C. | DNA |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 50 | #911 230 0827 | Peter Bernhard | Peter Bernhard | DNA |
| 26.8.1973 | Euro GT Hockenheim | 50 | #911 230 0827 | Peter Bernhard | Peter Bernhard | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 51 | #911 250 0335 | Kurt Peter | Kurt Peter | ?th |
| 26.8.1973 | Euro GT Hockenheim | 51 | #911 250 0335 | Kurt Peter | Kurt Peter | 13th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 52 | | Markus Hotz | Lista Racing Team | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 53 | | Edy Brandenberger | Scuderia Basilea | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 54 | | Edi Kofel | Mascotte Racing Team | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 55 | | Jürgen Krzikalla | Jürgen Krzikalla | ?th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 56 | | Josef Brambring | Porsche Kremer Racing Team | DNF |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 57 | #911 360 0837 | Theo Hofer | Lista Racing Team | DNA |
| 26.8.1973 | Euro GT Hockenheim | 57 | #911 360 0837 | Theo Hofer | Lista Racing Team | 10th |
| 26.8.1973 | Zolder [GT/S] | 145 | | Eckard Babendererde | Eckard Babendererde | ?th |
| 26.8.1973 | Zolder [GT/S] | 146 | | Heinz Blind | Heinz Blind | ?th |
| 26.8.1973 | Zolder [GT/S] | 147 | | Hans Halfmann | Hans Halfmann | DNF |
| 26.8.1973 | Zolder [GT/S] | 148 | | Klaus Herig | Vereinigung Berliner Automobilsportler e.V. | ?th |
| 26.8.1973 | Zolder [GT/S] | 150 | | Rolf Rosenkranz | Rolf Rosenkranz | ?th |
| 26.8.1973 | Zandvoort [GT/T] | | | Nico Chiotakis | | 1st |
| 2.9.1973 | Knutstorp [T/GT+1.3] | 5 | | Jan Lundgardh | Team Castrol | 2nd |
| 2.9.1973 | DRM Nürburgring 500 | 9 | #911 360 0921 | Günter Steckkönig | Manfred Weißmann, Vorhangschienen | 3rd |
| 2.9.1973 | 6 h Monza | 11 | #911 360 0885 | Schickentanz / Kremer / Keller | Porsche Kremer Racing | 1st |
| 2.9.1973 | 6 h Monza | 12 | | Keller / Schickentanz / Neuhaus | Porsche Kremer Racing | 2nd |
| 2.9.1973 | Knutstorp [S] | 13 | | Yngve Johansson | | 9th |
| 2.9.1973 | 6 h Monza | 14 | #002 0005 | Bonomelli / Fischhaber | | 6th |
| 2.9.1973 | 6 h Monza | 15 | #911 360 0659 | Haldi / Chenevière | Porsche Club Romand | DNF |
| 2.9.1973 | DRM Nürburgring 500 | 18 | | Josef Brambring | Josef Brambring | DNA |
| 2.9.1973 | DRM Nürburgring 500 | 19 | #911 360 1521 | Jürgen Konrad | Jürgen Konrad | 10th |
| 2.9.1973 | DRM Nürburgring 500 | 20 | #911 360 0909 | Karl-Josef Römer | Karl-Josef Römer | 19th |
| 2.9.1973 | 6 h Monza | 22 | | Larsson / Simonsen | | raced |
| 2.9.1973 | 6 h Monza | 23 | #911 360 1088 | Ballot-Léna / Geeraerts | Sonauto | 5th |
| 2.9.1973 | 6 h Monza | 37 | | Zbinden / Vollery | Porsche Club Romand | 7th |
| 2.9.1973 | 6 h Monza | | | Rulon-Miller / Birrane | | raced |
| 2.9.1973 | 6 h Monza | | #911 230 0827 | Peter / Bernhard | | raced |
| 2.9.1973 | 6 h Monza | | | Schön / Borri | | 4th |
| 2.9.1973 | 6 h Monza | | #911 360 0847 | Barth / Loos | | raced |
| 8.9.1973 | Sweden Kinekulle | 4 | | Bengt Ekberg | Team Kubero Porsche Racing | 3rd |
| 8.9.1973 | Sweden Kinekulle | 12 | | Jan Lundgardh | Team Castrol | 4th |
| 8.9.1973 | Sweden Kinekulle | 18 | | Roland Larsson | Team Kubero Porsche Racing | 7th |
| 9.9.1973 | DRM Norisring | 4 | #911 360 0885 | Clemens Schickentanz | Porsche Kremer Racing Team | 2nd |
| 9.9.1973 | DRM Norisring | 5 | #911 360 0921 | Günter Steckkönig | Manfred Weissmann | DNF |
| 9.9.1973 | DRM Norisring | 6 | #911 360 0847 | Georg Loos | Gelo Racing Team | 4th |
| 9.9.1973 | DRM Norisring | 7 | #911 360 1329 | Reinhardt Stenzel | Auto Fox Racing | DNF |
| 9.9.1973 | DRM Norisring | 12 | #911 360 0791 | Richard Leder | Team Firestone Hamburg | DNA |
| 9.9.1973 | NTK Woensdrecht | 81 | | Nico Chiotakis | Team 4711 Sir Irish Moss | 3rd |
| 9.9.1973 | Mainz-Finthen [GT] | 186 | | Heinz Blind | Heinz Blind | ?th |
| 9.9.1973 | Mainz-Finthen [GT] | 188 | | Josef Brambring | Josef Brambring | 2nd |
| 9.9.1973 | Mainz-Finthen [GT] | 189 | #911 360 1183 | Hans-Peter Ziegler | Hanspeter Ziegler | 1st |
| 9.9.1973 | Mainz-Finthen [GT] | 191 | #911 230 0818 | Eberhard Sindel | Rallyegemeinschaft Ulm | 3rd |
| 9.9.1973 | Mainz-Finthen [GT] | 192 | | John Rulon-Miller | Gante Racing | DNA |
| 9.9.1973 | Mainz-Finthen [GT] | 199 | | Reinhold Dornhöfer | Reinhold Dornhöfer | DNA |
| 9.9.1973 | Mainz-Finthen [GT] | 200 | | Klaus Herig | Klaus Herig | ?th |
| 9.9.1973 | Mainz-Finthen [GT] | 201 | | Rolf Blind | Rolf Blind | 9th |
| 15.9.1973 | 100 mile Lime Rock 1 | 1 | #911 360 0755 | Michael Keyser | Toad Hall Motor Racing | 1st |
| 15.9.1973 | 100 mile Lime Rock 1 | 5 | #911 360 0940 | Arnold Golding | Clarkson/Golding? | 33rd |
| 15.9.1973 | 100 mile Lime Rock 1 | 30 | #911 360 0557 | George Dyer | George Dyer | 12th |
| 15.9.1973 | 100 mile Lime Rock 1 | 59 | #911 360 0727 | Peter Gregg | Peter Gregg | 2nd |
| 15.9.1973 | 100 mile Lime Rock 1 | 65 | #911 360 0701 | Pete Harrison | Gregg Loomis | 41st |
| 15.9.1973 | 100 mile Lime Rock 1 | 76 | #911 360 0785 | George Stone | Silverstone Racing Team | 40th |