PORSCHE RACING HISTORY1977 - Sebring 12 Hours
19 March 1977 - Sebring International Raceway, USA
George Dyer & Brad Frisselle win in a Porsche 911 carrera RSR
Overall - 1st, 2nd, 3rd : GTO - 1st, 2nd, 3rd : GTU - 1st, 2nd, 3rd
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 911 Carrera RSR | 911 460 9048 | GTO | George Dyer (USA)/Brad Frisselle (USA) | George Dyer Racing (USA) | 1st | 1st | 7th | 234 laps |
| 58 | Porsche 911 Carrera RSR | 911 460 5064 | GTO | Diego Febles (PR)/Hiram Cruz (MEX) | Diego Febles Racing (PR) | 2nd | 2nd | 11th | 229 laps |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA)/Peter Gregg (USA) | Brumos Racing (USA) | 3rd | 3rd | 1st | 229 laps |
| 09 | Porsche 934 | 930 670 0175 | GTO | John Gunn (USA)/Gary Belcher (USA) | Belcher Racing (USA) | 4th | 4th | 4th | 228 laps |
| 0 | Porsche 934/5 | 930 770 0953 | GTO | Danny Ongais (USA)/Ted Field (USA)/Hurley Haywood (USA) | Vasek Polak/Interscope Racing (USA) | 5th | 5th | 2nd | 218 laps |
| 9 | Porsche 911 Carrera RSR | GTO | Rudy Bartling (CDN)/Klaus Bytzek (CDN) | Bytzek Automotive (CDN) | 6th | 6th | 19th | 217 laps | |
| 24 | Porsche 911 Carrera RSR | 911 460 9056 | GTO | Tom Frank (USA)/Carl Shafer (USA) | Executive Industries (USA) | 7th | 7th | 16th | 214 laps |
| 50 | Porsche 911 S | GTU | Gerhard Hirsch (CDN)/Fritz Hochreuter (CDN)/Rainer Brezinka (CDN) | Motex Auto (CDN) | 8th | 1st | 51st | 203 laps | |
| 27 | Porsche 911 S | 304 823 | GTU | Ray Mummery (USA)/Jack Refenning (USA)/Joseph Hamilton (USA) | Miami Auto Racing | 9th | 2nd | 70th | 203 laps |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Charles Mendez (USA)/Dave Cowart (USA) | Morrison's Inc. | 10th | 8th | 17th | 197 laps |
| 11 | Porsche 911 S | GTU | Gary Nylander (USA)/Bobbee Nylander (USA)/Michael Hammond (USA) | Motoring Enthusiasts | 13th | 3rd | 41st | 191 laps | |
| 70 | Porsche 911 S | GTU | M. L. Speer (USA)/Windle Turley (USA) | Race Car | 14th | 4th | 56th | 188 laps | |
| 60 | Porsche 911 S | GTU | Rusty Bond (USA)/Ren Tilton (USA) | R & R Racing | 15th | 5th | 27th | 187 laps | |
| 01 | Porsche 911 S | GTU | Bob Bergstrom (USA)/Jim Cook (USA) | Sports Ltd. Racing (USA) | 18th | 6th | 29th | 183 laps | |
| 06 | Porsche 911 T | GTU | Dave Panaccione (USA)/Gary Mesnick (USA)/J. Dana Roehrig (USA) | Morrison's Inc. | 19th | 7th | 35th | 182 laps | |
| 08 | Porsche 911 S | 911 030 1263 | GTU | Terry Wolters (USA)/Lawrence P. Pleasants (USA) | Busch Beer | 22nd | 13th | 55th | 174 laps |
| 51 | Porsche 914/6 | GTU | Robert Kirby (USA)/John Hotchkis (USA) | Kirby-Hitchcock Racing (USA) | 24th | 9th | 32nd | 164 laps - DNF | |
| 85 | Porsche 914/6 | GTU | John Hulen (USA)/Ron Coupland (USA)/Dave Causey (USA) | John Hulen (USA) | 25th | 10th | 37th | 157 laps | |
| 2 | Porsche 911 S | 119 220 830 | GTU | Bill Freeman (USA)/Paul Newman (USA) | Bill Freeman | 30th | 11th | 40th | 150 laps |
| 10 | Porsche 911 Carrera RSR | GTO | Hans Berner (CDN)/Willy Goebbels (CDN) | Motex Auto | 31st | 20th | 44th | 148 laps - DNF | |
| 98 | Porsche 911 S | GTU | Juan Montalvo (C)/Tony Garcia (USA)/Jorge DeCardenas (USA) | Conrad Racing | 32nd | 12th | 74th | 145 laps - DNF | |
| 92 | Porsche 911 Carrera RSR | GTO | Mike Tillson (USA)/David Olimpi (USA) | Mike Tillson Motor Racing (USA) | 36th | 23rd | 33rd | 135 laps - DNF | |
| 46 | Porsche 911 Carrera RSR | 911 360 0865 | GTO | Mauricio DeNarváez (COL)/Albert Naon (USA) | Mauricio DeNarvaez (CO) | 37th | 24th | 22nd | 130 laps - DNF |
| 77 | Porsche 911 S | GTU | Bruce Jennings (USA)/Bill Bean (USA) | Bruce Jennings (USA) | 40th | 14th | 38th | 123 laps - DNF | |
| 20 | Porsche 914/4 | 471 29 12215 | GTU | Vince DiLella (USA)/Manuel Cueto (USA) | Vince DiLella (USA) | 46th | 17th | 59th | 93 laps - DNF |
| 54 | Porsche 914/6 | GTU | Hal Sahlman (USA)/Preston Henn (USA)/Steve Cook (USA) | Spirit Racing | 49th | 19th | 48th | 81 laps - DNF | |
| 71 | Porsche 911 S | GTU | Tom Bagley (USA)/Chip Mead (USA) | The Foreign Exchange | 50th | 20th | 34th | 77 laps - Transmission | |
| 8 | Porsche 911 Carrera RSR | 911 460 0035 | GTO | Bob Beasley (USA)/George Stone (USA) | Bob Beasley | 51st | 30th | 13th | 74 laps - Engine |
| 67 | Porsche 911 Carrera RSR | 911 360 0701 | GTU | Dave White (USA)/David McClain (USA) | Havatampa Cigars | 57th | 21st | 23rd | 48 laps - Accident |
| 5 | Porsche 911 S | GTU | Pedro Vazquez (USA)/Bill Wolfe (USA)/Richard Weiss (USA) | Pedro Vazquez (USA) | 64th | 24th | 54th | 35 laps - DNF | |
| 88 | Porsche 911 S | GTU | Jim Borsos (USA)/Dennis Aase (USA) | 68th | 27th | 28th | 24 laps - Accident | ||
| 38 | Porsche 911 Carrera RSR | 911 460 9113 | GTO | John Paul Sr. (USA)/John O'Steen (USA)/John Graves (USA)/Bob Hagestad (USA) | John Paul Sr. (USA) | 69th | 41st | 9th | 13 laps - Engine |
| 57 | Porsche 911 Carrera RSR | 911 460 0100 | GTO | John Tunstall (USA)/Chuck Wade (USA) | Starbrite | 72nd | 44th | 30th | 2 laps - Suspension |
IMSA - International Motor Sport Association Sebring 12 Hours
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