| 10.7.1983 | Australian GT Adelaide | 11 | 318i Turbo | Richards / Gardner | JPS Team BMW | DNA |
| 10.7.1983 | GP Nürburgring | 56 | 323i | Martini / Jacobs / Kamp | DMC Anker Teppich Team | 24th |
| 10.7.1983 | GP Nürburgring | 57 | 323i | Schnock / Krumbach / von Stein | DMC Anker Teppich Team | 21st |
| 17.7.1983 | National Salzburgring | 1 | M1 | Sepp Manhalter | Austro Race | DNA |
| 17.7.1983 | National Salzburgring | 2 | 320 Turbo | Karl Oppitzhauser | Karl Oppitzhauser | DNA |
| 17.7.1983 | National Salzburgring | 6 | 320 | Gabath Günther | Gabath Günther | DNA |
| 17.7.1983 | National Salzburgring | 7 | 320 | Herbert Summerauer | Herbert Summerauer | DNA |
| 17.7.1983 | National Salzburgring | 8 | 320 | Helmut Haider | Helmut Haider | DNA |
| 17.7.1983 | National Salzburgring | 10 | 320 | Manrico Zanuso | Karl Oppitzhauser | DNA |
| 17.7.1983 | National Salzburgring | 15 | 535i M | Hermann Duller | Hermann Duller | DNA |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Müller / Kuhn-Weiss | Müllerbrau Team | 7th |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Vojtěch / Enge | Hartge Motorsport | DNF |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Isler / Nussbaumer | Hartge Motorsport | 5th |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Kofel / Vanoli | BMW Italia | 6th |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Kelleners / Grano | BMW Italia | 4th |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Winkelhock / Quester | Team Schnitzer Eterna | 3rd |
| 17.7.1983 | 500 km Salzburgring | | 635 CSi | Stuck / Brun | Team Schnitzer Eterna | 2nd |
| 17.7.1983 | 500 km Salzburgring | | 323i | Winkelhock / Vogt | Linder Rennsport | DNF |
| 24.7.1983 | 1000 km Fuji | 1 | M1 Gr.5 | Nagasaka / Shimizu | Auto Beaurex Motor Sports | DNF |
| 24.7.1983 | 3 h Sears Point | 11 | M1 | Chuck Kendall | Kendall Racing | 31st |
| 24.7.1983 | Thundersports Thruxton | 12 | M1 | Hill / Riley | Mick Hill/Kevin Riley | raced |
| 24.7.1983 | 3 h Sears Point | 18 | M1 | "Fomfor" | Fomfor Racing | 29th |
| 24.7.1983 | RT Diepholz | 31 | M1 | Harald Grohs | Vogelsang Automobil GmbH | 1st |
| 24.7.1983 | RT Diepholz | 32 | M1 | Kurt König | Kurt König | 3rd |
| 24.7.1983 | RT Diepholz | | M1 | Karl-Heinz Becker | | 4th |
| 24.7.1983 | RT Diepholz | | M1 | Wido Rössler | BMW-Motorsport Dierks | 2nd |
| 24.7.1983 | RT Diepholz | | 320 | Martin Wagenstetter | Motorsportclub Rosenheim | ?th |
| 24.7.1983 | RT Diepholz | | 320 | Dieter Hegels | Dieter Hegels | ?th |
| 24.7.1983 | RT Diepholz | | 320 | Hans-Wöltje Kaemena | | ?th |
| 31.7.1983 | 24 h Spa | 1 | 635 CSi | Kelleners / Grano / Cecotto | BMW Italia | DNF |
| 31.7.1983 | 24 h Spa | 2 | 635 CSi | Vanoli / Libert / Witmeur | BMW Italia | DNF |
| 31.7.1983 | 24 h Spa | 3 | 635 CSi | Stuck / Brun / Grohs | Team Schnitzer Eterna | DNF |
| 31.7.1983 | 24 h Spa | 4 | 635 CSi | Rossi / Winkelhock / Quester | Team Schnitzer Eterna | 2nd |
| 31.7.1983 | 24 h Spa | 5 | 635 CSi | Boutsen / Ballot-Léna / Sabine | Texaco Racing Team | DNF |
| 31.7.1983 | 24 h Spa | 8 | 635 CSi | Delcourt / Vanoli / Baert | Lucky Strike Team | DNF |
| 31.7.1983 | 24 h Spa | 9 | 528i | "Davit" / Boucher / Hoebeke | Lucky Strike Team | 7th |
| 31.7.1983 | 24 h Spa | 10 | 635 CSi | Vojtěch / Enge / Hartge | Hartge Motor Sport | DNF |
| 31.7.1983 | 24 h Spa | 11 | 635 CSi | Müller / Fruhauf / Lubin | Hartge Motor Sport | DNF |
| 31.7.1983 | 3 h Portland | 11 | M1 | Chuck Kendall | Charles Kendall | 35th |
| 31.7.1983 | 24 h Spa | 14 | 635 CSi | Bos / Duby / Krucker | Waterloo Motor R. Gitanes | DNF |
| 31.7.1983 | 24 h Spa | 15 | 635 CSi | Fornage / Dorchy / Smadja | Lucky Strike Team | DNF |
| 31.7.1983 | 24 h Spa | 16 | 528i | Maljean / "Hex" / Wansart | Willy Maljean | raced |
| 31.7.1983 | 3 h Portland | 18 | M1 | Montoya / "Fomfor" | FomFor | 4th |
| 31.7.1983 | 24 h Spa | 21 | 635 CSi | Tassin / Heyer / Hahne | Bastos Juma Racing Team | 1st |
| 31.7.1983 | 24 h Spa | 22 | 635 CSi | Schlesser / Xhenceval / Bourgoignie | Bastos Juma Racing Team | DNF |
| 31.7.1983 | 24 h Spa | 24 | 635 CSi | Guitteny / Bleynie / Guérin | Bastos Juma Racing Team | DNF |
| 31.7.1983 | 24 h Spa | 25 | 635 CSi | Snobeck / Cudini / Peltier | Waterloo Motor Racing Gitanes | DNF |
| 31.7.1983 | 24 h Spa | 26 | 635 CSi | Haezebrouck / Lapeyre / Jaussaud | Waterloo Motor R. Gitanes | DNF |
| 31.7.1983 | 24 h Spa | 27 | 635 CSi | Hesnault / Rousselot / Dermange | Waterloo Motor R. Gitanes | 10th |
| 31.7.1983 | 24 h Spa | 35 | 528i | Raes / Verhaegen / Van Rompuy | Renstal Excelsior | 13th |
| 31.7.1983 | 24 h Spa | 36 | 635 CSi | Cipriani / Siena / Toffoli | Raetia Corse | 5th |
| 31.7.1983 | 3 h Portland | 43 | M1 | Davey / Hayje | Patrick F. Brown | 21st |
| 31.7.1983 | 24 h Spa | 47 | 323i | Damais / Burzio / Vignon | Jean Vignon | DNA |
| 7.8.1983 | RT Hockenheim | | M1 | Dieter Quester | | 3rd |
| 7.8.1983 | RT Hockenheim | | M1 | Kurt König | | 4th |
| 7.8.1983 | RT Hockenheim | | M1 | Hans-Joachim Stuck | | 1st |
| 7.8.1983 | RT Hockenheim | | M1 | Harald Grohs | | 2nd |
| 7.8.1983 | RT Hockenheim | | M1 | Helmut Lenz | | 5th |
| 14.8.1983 | MN GT Donington | 1 | M1 | Jeff Wilson | Jeff Wilson Racing | DNA |
| 14.8.1983 | MN GT Donington | 12 | M1 | Mick Hill | Mick Hill | DNA |
| 14.8.1983 | 6 h Mosport | 18 | M1 | "Fomfor" / Montoya | Fomfor Racing | 22nd |
| 14.8.1983 | 6 h Mosport | 40 | M1 | Bieri / Gysler | Bieri Racing | 26th |
| 20.8.1983 | Ahvenisto [Gr.5 2.0] | 3 | 320 Turbo | Nils-Gustav Wiik | Nils-Gustav Wiik | 2nd |
| 20.8.1983 | Ahvenisto [Gr.5 2.0] | 6 | 320 | Helge Snabb | Helge Snabb | 3rd |
| 21.8.1983 | International Ahvenisto [Gr.5 2.0] | 3 | 320 Turbo | Nils-Gustav Wiik | Nils-Gustav Wiik | 1st |
| 21.8.1983 | International Ahvenisto [Gr.5 2.0] | 6 | 320 | Helge Snabb | Helge Snabb | 3rd |
| 21.8.1983 | 500 mile Road America | 18 | M1 | "Fomfor" | Fomfor Racing | DNA |
| 21.8.1983 | 500 mile Road America | 40 | M1 | Bieri / Gysler | Bieri Racing | DNA |
| 21.8.1983 | 500 mile Road America | 43 | M1 | Paul Davey | Walker Brown Racing | 45th |
| 21.8.1983 | 500 mile Road America | 55 | M1 | Montoya / "Fomfor" | B. de T. Racing | 11th |
| 28.8.1983 | Australian GT Surfers Paradise | 91 | 318i Turbo | John Briggs | John Briggs BMW | 2nd |
| 4.9.1983 | 1000 km Spa | 88 | M1 | König / Beilcke | Kurt König | DNA |
| 4.9.1983 | 1000 km Spa | 89 | M1 | Winther / Mercer / Jelinski | Jens Winther | 12th |
| 4.9.1983 | 1000 km Spa | 90 | M1 | Dören / Jürgensen / Gall | Racing Team Jürgensen | DNF |
| 4.9.1983 | 1000 km Spa | 100 | 320 | Hild / Wagenstetter | Team Krautol Farben | DNA |
| 4.9.1983 | 1000 km Spa | 101 | 320 | Rolf Rummel | Rolf Rummel | DNA |
| 11.9.1983 | Tourist Trophy | 1 | 635 CSi | Kelleners / Grano | BMW Italia | 6th |
| 11.9.1983 | Tourist Trophy | 2 | 635 CSi | Hollinger / Vanoli | BMW Italia | 7th |
| 11.9.1983 | Tourist Trophy | 3 | 635 CSi | Heyer / Quester | Team Schnitzer-Eterna | 5th |
| 11.9.1983 | Tourist Trophy | 4 | 635 CSi | Stuck / Brun / Quester | Team Schnitzer-Eterna | DNF |
| 11.9.1983 | Tourist Trophy | 8 | 635 CSi | Delcourt / Williams | Lucky Strike Team | 4th |
| 11.9.1983 | Tourist Trophy | 9 | 528i | "Davit" / Boucher / Trigaux | Lucky Strike Team | DNQ |
| 11.9.1983 | Tourist Trophy | 10 | 635 CSi | Vojtěch / Enge | Hartge Motorsport | 3rd |
| 11.9.1983 | Tourist Trophy | 11 | 635 CSi | Vojtěch / Hartge / Hartge | Hartge Motorsport | 8th |
| 11.9.1983 | Tourist Trophy | 12 | 635 CSi | Bosshard / Briozzo | Giuseppe Briozzo | 27th |
| 11.9.1983 | Tourist Trophy | 14 | 635 CSi | Bos / Duby / Krucker | Jean-Louis Bos | DNA |
| 11.9.1983 | Tourist Trophy | 14 | 635 CSi | Palmer / Weaver | Autosport & Design | 2nd |
| 11.9.1983 | Tourist Trophy | 15 | 635 CSi | Shaw / Fornage | Dominique Fornage | 20th |
| 11.9.1983 | Tourist Trophy | 16 | 528i | Maljean / "Hex" / Polak | Willy Maljean | DNA |
| 11.9.1983 | 500 mile Pocono | 18 | M1 | "Fomfor" / Olson | Fomfor Racing | 5th |
| 11.9.1983 | Tourist Trophy | 29 | 635 CSi | Sytner / Muir | Grace International Racing | 10th |
| 11.9.1983 | Tourist Trophy | 30 | 635 CSi | Hobbs / Danner | Cheylesmore BMW Motorsport | raced |
| 11.9.1983 | Tourist Trophy | 32 | 528i | Bychl / Bervid | ÚAMK ČSSR | DNA |
| 11.9.1983 | Tourist Trophy | 33 | 528i | Middelhaufe / Felder / Gall | Mike Middelhaufe | DNQ |
| 11.9.1983 | 500 mile Pocono | 40 | M1 | Bieri / Gysler | Bieri Racing | 11th |
| 11.9.1983 | 500 mile Pocono | 43 | M1 | Davey / Varde | Walker Brown Racing | 24th |
| 11.9.1983 | Tourist Trophy | 52 | 323i | Vogt / Müller, Jr. | Linder Rennsport | 21st |
| 11.9.1983 | 500 mile Pocono | 55 | M1 | Montoya / Ullom | B de T Racing | 27th |
| 11.9.1983 | Tourist Trophy | 58 | 323i | Dubuisson / Vignon | Jean Vignon | DNQ |
| 18.9.1983 | 1000 km Brands Hatch | 88 | M1 | Jürgensen / Gall / Dören | Jürgensen and Sohn | DNF |