| 8.7.1973 | 6 h Nürburgring | 29 | | Jörg Obermoser | Schnitzer Motul Racing Team | DNS |
| 8.7.1973 | 6 h Nürburgring | 33 | | Reeb / Clever | GS-BMW-Tuning | DNF |
| 8.7.1973 | 6 h Nürburgring | 38 | | Wagner / Babendererde | Lothar Wagner | DNS |
| 8.7.1973 | 6 h Nürburgring | 39 | | Gastes / Arendt | Edmund Gastes | 17th |
| 8.7.1973 | 6 h Nürburgring | 42 | | Mohr / Basche | GS-BMW-Tuning | DNF |
| 8.7.1973 | 6 h Nürburgring | 44 | | Bremmekamp / Fischer | MSC Paffrath | DNS |
| 8.7.1973 | 6 h Nürburgring | 45 | | Koch / Görke | | DNF |
| 8.7.1973 | 6 h Nürburgring | 48 | | Hirth / Mohrs | BMW-Koepchen | 13th |
| 8.7.1973 | 6 h Nürburgring | 50 | | Richter / Fuchs | | DNF |
| 8.7.1973 | 6 h Nürburgring | 51 | | Dimmendaal / Dimmendaal | | DNF |
| 8.7.1973 | 6 h Nürburgring | 52 | | Peitz / Betzler | | DNS |
| 8.7.1973 | 6 h Nürburgring | 55 | | Bonefeld / Zweibäumer | Reppekus-Tuning | 34th |
| 8.7.1973 | 6 h Nürburgring | 58 | | Steckkönig / Kelleners | Koepchen BMW Tuning | DNF |
| 8.7.1973 | 6 h Nürburgring | 59 | | Rummel / Hintz | BMW-Faltz-Alpina | 14th |
| 8.7.1973 | 6 h Nürburgring | | | Holmström / Hesselgren | | DNF |
| 15.7.1973 | Sweden Falkenberg | 5 | | Rune Tobiasson | STP Sweden | DNF |
| 15.7.1973 | Sweden Falkenberg | 15 | | Carl Piper | STP Sweden | 8th |
| 15.7.1973 | Sweden Falkenberg | 17 | | Conny Nyström | Haj-Haj Racing | 9th |
| 15.7.1973 | Sweden Falkenberg | 20 | | Björn Ribers | STP Sweden | 10th |
| 15.7.1973 | Sweden Falkenberg | 21 | | Mons Billgren | Autosport | 11th |
| 15.7.1973 | 6 h Mid-Ohio | 21 | #1666282 | Fred Miller | Eilifsen Racing | 46th |
| 15.7.1973 | 6 h Mid-Ohio | 35 | | John Morton | | 29th |
| 15.7.1973 | 6 h Mid-Ohio | 60 | | Nicholas / Magee | Auto Sport by Jiri | 10th |
| 15.7.1973 | DRM Diepholz | | | Harald Menzel | BMW-Koepchen | 2nd |
| 15.7.1973 | Trans-Am Sanair | | | Andy Petery | Petery Racing | 26th |
| 15.7.1973 | DRM Diepholz | | | Dieter Basche | GS-BMW-Tuning | 3rd |
| 15.7.1973 | DRM Diepholz | | | Jürgen Puls | VBA, Berlin | 8th |
| 15.7.1973 | DRM Diepholz | | | Manfred Busch | Auto-Geishauer-Racing Team | DNF |
| 15.7.1973 | DRM Diepholz | | | Hans Full | Hans Full | DNF |
| 15.7.1973 | DRM Diepholz | | | Siegfried Köpcke | Siegfried Köpcke | 9th |
| 15.7.1973 | Trans-Am Sanair | | | Lazebnik / Noble | Commercial Exchange | 16th |
| 15.7.1973 | Trans-Am Sanair | | | Monique Proulx | Mojak Racing | 14th |
| 22.7.1973 | 24 h Spa | 68 | | Rieu / Vanderschrieck | R. Vanderschrieck | DNF |
| 22.7.1973 | 24 h Spa | 69 | | Koob / Lagodny | Nicolas Koob | DNF |
| 22.7.1973 | 24 h Spa | 70 | | Delcourt / Delbar | Hermes Delbar | DNA |
| 22.7.1973 | 24 h Spa | 71 | | Hirth / Mohrs | Peter Koepchen | DNF |
| 22.7.1973 | 24 h Spa | 81 | | Heid / Feider | Charles Michiels | DNF |
| 22.7.1973 | 24 h Spa | 82 | | Raus / Détrin | Charles Michiels | DNF |
| 22.7.1973 | 24 h Spa | 86 | | "Mac Intosh" / Helsen | Ecurie Arc en ciel | DNF |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 293 | | Albrecht Krebs | Team Schnitzer Motul | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 294 | | Siegfried Lehmann | Siegfried Lehmann | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 295 | | Siegrfired Kleinmann | Siegrfired Kleinmann | DNA |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 296 | | Rolf Hartge | Rolf Hartge | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 297 | | Alois Matter | Formel Rennsport Club | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 298 | | Hans-Dieter Wiechers | Hans-Dieter Wiechers | DNA |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 299 | | Gerhard Badtke | Gerhard Badtke | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 300 | | Gerd Herrmann | Gerd Herrmann | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 301 | | Dieter Nakaten | Dieter Nakaten | DNF |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 302 | | Hartmut Böhme | Renngemeinschaft Graf Zeppelin | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 303 | | Heinrich Doll | Heinrich Doll | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 304 | | Martin Marschall | Martin Marschall | DNA |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 305 | | Klaus Schwinge | MSC Schorndorf "Gottlieb Daimler" | DNF |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 306 | | Helmut Hesse | Helmut Heße | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 307 | | Ruedi Toldo | Sport-Team Liechtenstein | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 308 | | Wolfgang Wasum | Mattes Racing GmbH | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 311 | | Gustav Fischer | Gustav Fischer | DNF |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 312 | | Wolfgang May | Team Schnitzer Motul | DNA |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 314 | | Günther Hildenbrand | Günther Hildenbrand | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 315 | | Dieter Kleiner | Dieter Kleiner | DNA |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 316 | | Dieter Stünkel | Dieter Stünkel | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 317 | | Günther Wangemann | Günther Wangemann | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | 318 | | Hugo Lutz | Hugo Lutz | ?th |
| 22.7.1973 | SM Hockenheim [T2.0/GT2.0] | | | Walter Luft | Walter Luft | DNF |
| 28.7.1973 | Trans-Am Road America | 84 | | Andy Petery | Petery Racing | DNA |
| 29.7.1973 | 2 h Luanda | 30? | | Esperto / Vimor | | raced |
| 29.7.1973 | 2 h Luanda | - | | Silva / Carneiro | | 8th |
| 5.8.1973 | 6 h Nova Lisboa | 3 | | Cabral / Peixinho | | DNF |
| 5.8.1973 | 6 h Nova Lisboa | 11 | | | | raced |
| 5.8.1973 | 6 h Nova Lisboa | 21 | | | | raced |
| 5.8.1973 | DRM Nürburgring GP | 31 | | Dieter Basche | GS-BMW-Tuning | 6th |
| 5.8.1973 | DRM Nürburgring GP | 32 | | Helmut Kelleners | Koepchen-BMW-Tuning | 8th |
| 5.8.1973 | DRM Nürburgring GP | 33 | | Albrecht Krebs | Team Schnitzer-Motul | DNF |
| 5.8.1973 | DRM Nürburgring GP | 42 | | Horst Bonefeld | Reppekus-Tuning-BMW | DNF |
| 5.8.1973 | DRM Nürburgring GP | 45 | | Frank Lampe | MHSTC | 27th |
| 5.8.1973 | DRM Nürburgring GP | 48 | | Karl-Heinz Schrey | Karl-Heinz Schrey | 26th |
| 5.8.1973 | DRM Nürburgring GP | 49 | | Erich Schormann | Erich Schormann | DNA |
| 5.8.1973 | DRM Nürburgring GP | 50 | | Thomas Betzler | Thomas Betzler | DNF |
| 5.8.1973 | DRM Nürburgring GP | 53 | | Lothar Wagner | Lothar Wagner | DNA |
| 5.8.1973 | DRM Nürburgring GP | 54 | | Emil Dimmendaal | Emil Dimmendaal | 14th |
| 5.8.1973 | DRM Nürburgring GP | 59 | | Richard Bremmekamp | Richard Bremmekamp | DNA |
| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 10 | | Carl Piper | Tomelilla Bilriktning | DNA |
| 12.8.1973 | Karlskoga [T+1.3/GT3.0] | 19 | | Conny Nyström | Haj-Haj Racing Team | 10th |
| 12.8.1973 | 4 h Zandvoort | 33 | | Menzel / Kelleners | Koepchen BMW Tuning | 7th |
| 12.8.1973 | 4 h Zandvoort | 34 | | Urlbauer / Scherf | Wilhelm Urlbauer | DNS |
| 12.8.1973 | 4 h Zandvoort | 35 | | Wagner / Verheij | Racing Team Balafre Lancome | DNF |
| 12.8.1973 | 4 h Zandvoort | 36 | | Feider / Détrin | Charles Michiels | DNA |
| 12.8.1973 | 4 h Zandvoort | 39 | | Verkühlen / Kuhlmann | Hannen-Alt Racing Team | DNF |
| 19.8.1973 | 500 km Benguela | 8 | | Zé Maria | | 7th |
| 19.8.1973 | DRM Kassel-Calden | 54 | | Dieter Basche | GS-BMW-Tuning | ?th |
| 19.8.1973 | DRM Kassel-Calden | 55 | | Wolfgang Wasum | Mather Racing GmbH | DNA |
| 19.8.1973 | DRM Kassel-Calden | 56 | | Jürgen Puls | VBA | ?th |
| 19.8.1973 | DRM Kassel-Calden | 57 | | Roland Rutschow | Roland Rutschow | DNA |
| 19.8.1973 | DRM Kassel-Calden | 61 | | Albrecht Krebs | Team Schnitzer Motul | DNA |
| 19.8.1973 | DRM Kassel-Calden | 62 | | Gerhard Mück | VBA | ?th |
| 19.8.1973 | DRM Kassel-Calden | 64 | | Erich Schormann | Erich Schormann | DNA |
| 19.8.1973 | DRM Kassel-Calden | 65 | | Karl-Heinz Schrey | Karl-Heinz Schrey | ?th |
| 19.8.1973 | DRM Kassel-Calden | 67 | | Hans-Joachim Stuck | BMW-Koepchen | DNF |
| 19.8.1973 | DRM Kassel-Calden | | | Roland Rutschow | Roland Rutschow | ?th |
| 19.8.1973 | Trans-Am Edmonton | | | Weigl / McGowan | Hal Weigl | 11th |
| 26.8.1973 | DRM Hockenheim Preis der Nationen | 102 | | Hans-Joachim Stuck | GS-BMW-Tuning | 1st |