6 February 1977 - Daytona 24 Hours - World Championship for Makes

Hurley Haywood, John Graves & Dave Helmick win in a 911 Carrera RSR

13 March 1977 - DRM Zolder Bergischer Löwe - DRM - Deutsche Rennsport Meisterschaft

Manfred Schurti wins in a Porsche 935

19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association

George Dyer & Brad Frisselle win in a Porsche 911 carrera RSR

20 March 1977 - Mugello 6 Hours - World Championship for Makes

Rolf Stommelen & Manfred Schurti win in a Porsche 935

27 March 1977 - DRM Nürburgring 300 Km - DRM - Deutsche Rennsport Meisterschaft

Rolf Stommelen wins in a Porsche 935

17 April 1977 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association

George Dyer 3rd in a Porsche 934/5

1 May 1977 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association

Danny Ongais wins in a Porsche 934/5

15 May 1977 - Mid-America 100 Miles - IMSA - International Motor Sport Association

George Dyer second in a 911 Porsche Carrera RSR, 11.911s behind the winning Chevrolet Monza driven by Al Holbert

30 May 1977 - Trans-Am Kent - Trans-Am

Ludwig Heimrath, Sr wins in a Porsche 934/5

12 June 1977 - Trans-Am Portland - Trans-Am

George Follmer wins in a Porsche 934/5

12 June 1977 - Le Mans 24 Hours - Non Championship Race

Jürgen Barth, Hurley Haywood & Jacky Ickx win in a Porsche 936/77

26 June 1977 - Trans-Am Nelson Ledges - Trans-Am

Bob Hagestad wins in a Porsche 934/5

3 July 1977 - DRM Norisring - DRM - Deutsche Rennsport Meisterschaft

Rolf Stommelen wins Division 1 in Porsche 935

9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes

Jochen Mass & Jacky Ickx win in a Porsche 935/77

30 July 1977 - DRM Hockenheim Grand Prix - DRM - Deutsche Rennsport Meisterschaft

Bob Wollek wins Division 1 in Porsche 935 and Jacky Ickx wins Division 2 In Porsche 935 2.0

31 July 1977 - Trans-Am Hallett - Trans-Am

Peter Gregg wins in a Porsche 934/5

14 August 1977 - Trans-Am Brainerd - Trans-Am

Peter Gregg wins in a Porsche 934/5

20 August 1977 - Mosport 6 Hours - World Championship for Makes

Ludwig Heimrath, Sr & Paul Miller win in a Porsche 934/5

28 August 1977 - Interserie Nürburgring - Interserie

Reinhold Jöst third in a Porsche 908/03

3 September 1977 - Trans-Am Road America - Race I - Trans-Am

Ludwig Heimrath, Sr wins in a Porsche 934/5

4 September 1977 - Trans-Am Road America - Race 2 - Trans-Am

Peter Gregg wins in a Porsche 934/5

18 September 1977 - Interserie Ulm - Interserie

Reinhold Jöst wins in a Porsche 908/03

9 October 1977 - Interserie Hockenheim - Interserie

Reinhold Jöst third in a Porsche 908/03

9 November 1977 - Trans-Am Mont-Tremblant - Trans-Am

Peter Gregg wins in a Porsche 934/5