A Federacao Internacional de Sports Automobilisticos (FISA) dividiu o campeonato em dois, com prototipos e GTs, um ganho pela Porsche e outro pela Alfa Romeo.24 Horas de Daytona - Date: 6.2.1977(round 1)1st 43 Hurley Haywood/Graves/Helmick - Porsche Carrera RSR2nd 3 Facetti/Finotto/Camathias - Porsche 9353rd 8 Reinhold Jost/Bob Wollek/Krebs - Porsche 9354th 30 George Dyer/Frisselle - Porsche Carrera RSR5th 64 Elliot Forbes-Robinson/Paul Newman/Minter - Ferrari 365 GTB/46th 48 Sereix / Carusso / Donaldson - Chevrolet Corvette7th 42 Bob Hindson/Carney/Davenport - Porsche 911 S8th 28 Weiss / Alsup / Gage - Porsche 911 S9th 07 Charles Mendez/Cowart/Panaccione - Porsche 911 T10th 61 Peter Gregg/Busby - Porsche 934Date: 20.3.1977- 6 Horas de Mugello (round 2)1st 2 Rolf Stommelen/Manfred Schurti - Porsche 9352nd 5 Finotto / Facetti / Camathias - Porsche 9353rd 26 "Victor" / Monticone - Porsche 9354th 18 Arturo Merzario/Bianco - Porsche 9345th 14 "Amphicar" / Moreschi - Porsche Carrera RSR6th 38 Utz / Blind - Porsche Carrera RSR7th 7 Haldi / Ferrier - Porsche 9348th 16 Cambiaghi / Paleari - Lancia Stratos9th 31 Mario Ruoso/"Pal Joe" - Ford Escort RS10th 24 Guido Agazzotti Cavazza/Nardini - Porsche Carrera RSR6 Horas de Silverstone - Date: 15.5.1977(round 3)1st 1 Jochen Mass/Jacky Ickx - Porsche 935/772nd 3 Bob Wollek/John Fitzpatrick - Porsche 9353rd 6 Rolf Stommelen/Toine Hezemans - Porsche 9354th 51 Ronnie Peterson/Helmut Kelleners - BMW 3205th 11 Franz Konrad/Hahnlein - Porsche 9356th 8 Facetti / Finotto - Porsche 9357th 9 Vittorio Brambilla/Moretti - Porsche 9348th 10 Haldi/Reinhold Jost - Porsche 9349th 31 Simonsen/Kenneth Leim - Porsche Carrera RSR10th 33 Utz / Jahn - Porsche Carrera RSR1000 Km de Nurburgring - Date: 29.5.1977(round 4)1st 3 Tim Schenken/Rolf Stommelen/Toine Hezemans - Porsche 9352nd 4 Bob Wollek/John Fitzpatrick - Porsche 935 K23rd 26 Marc Surer/Manfred Winkelhock - BMW 320i4th 5 Franz Konrad/Keller - Porsche 9355th 6 Schornstein / von Tschirnhaus - Porsche 934/56th 7 Manfred Schurti/Helmut Kelleners - Porsche 9357th 32 Haldi/Reinhold Jost - Porsche 9348th 15 Utz / Jahn - Porsche Carrera RSR9th 18 Simonsen/Kenneth Leim - Porsche Carrera RSR10th 16 Schimpf / Fischhaber - Porsche Carrera RSRDate: 9.7.1977- 6 Horas de Watkins Glen (round 5)1st 1 Jochen Mass/Jacky Ickx - Porsche 935/772nd 16 George Follmer/Brett Lunger - Porsche 9353rd 95 Hurley Haywood/Bob Hagestad - Porsche 934/54th 66 Dick Barbour/Johnny Rutherford - Porsche 934/55th 0 Danny Ongais/Field - Porsche 934/56th 59 Peter Gregg/Claude Ballot-Lena/Gunn - Porsche 9347th 51 Frostrom / Shelton - Porsche Carrera RSR8th 7 Heimrath / Miller - Porsche 934/59th 57 Lazier/John Wood - Porsche 911 Carrera10th 20 Guthrie / Lewis - Porsche 934Date: 20.8.1977- 6 Horas de Mosport Park (round 6)1st 7 Ludwig Heimrath/Paul Miller - Porsche 934/52nd 23 Eddie Cheever/Giles Villeneuve - BMW 320i3rd 44 Tullius / Fuerstenau - Jaguar XJS4th 98 Tom Spalding/Bauer/Elliot Forbes-Robinson - Porsche 911 Carrera RSR5th 9 Bytzek / Bartling / Bytzek - Porsche Carrera RSR6th 13 Shaw, Jr. / Meister - Porsche Carrera RSR7th 88 Overing / Hochreuter / Talbot - Porsche Carrera RSR8th 2 David Hobbs/Ronnie Peterson - BMW 320i9th 60 Brandt / Oleyar - Chevrolet Corvette 35010th 18 Eitel Maier/Jolly - Porsche Carrera RSRDate: 25.9.1977- 6 Horas