| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 59 | Brad Friselle (USA)
Peter Gregg (USA) |
Porsche 935 930 890 0018 | Brumos Porsche | 175 | 6:00:41,9283 | 1 | GTX | 2 | 1:52.364 |
| 2 | 94 | Bill Whittington (USA)
Don Whittington (USA) |
Porsche 935-77A | Whittington Brothers | 167 | 2 | GTX | 13 | 2:06.684 | |
| 3 | 6 | Dick Barbour (USA)
Johnny Rutherford (USA) |
Porsche 935-77A 9307700959 | Dick Barbour | 161 | 3 | GTX | 3 | 1:54.687 | |
| 4 | 33 | Bonky Fernandez (PR)
David Cowart (USA) |
Porsche 911 Carrera RSR 4609113 | Boricua Racing | 161 | 1 | GTO | 12 | 2:06.335 | |
| 5 | 32 | Steve Earle (USA)
Bob Akin (USA) |
Porsche 911 Carrera RSR 4609048 | Earle/Akin | 159 | 4 | GTX | 19 | 2:09.975 | |
| 6 | 1 | Dale Kreider (USA)
Bruce Davidson (USA) |
Chevrolet Corvette | Dale Kreider | 156 | 5 | GTX | 17 | 2:07.828 | |
| 7 | 76 | Lee Mueller (USA)
Frank Thomas (USA) |
Porsche 911 | Frank Thomas | 156 | 1 | GTU | 18 | 2:09.922 | |
| 8 | 68 | Rick Hay (USA)
Phil Currin (USA) |
Chevrolet Corvette | Rick Hay | 156 | 6 | GTX | 8 | 2:00.171 | |
| 9 | 01 | Dave White (USA)
J. Dana Roehrig (USA) |
Porsche 911S | J. Dana Roehrig | 151 | 2 | GTU | 20 | 2:10.426 | |
| 10 | 34 | George Drolsom (USA)
Hugh Davenport (USA) |
Porsche 911S | George Drolsom | 149 | 3 | GTU | 23 | 2:12.877 | |
| 11 | 62 | William Koll (USA)
David Hamren (USA) |
Porsche 914/6 | William Koll | 148 | 4 | GTU | 32 | 2:22.516 | |
| 12 | 7 | Amos Johnson (UsA)
Roger Mandeville (USA) Dennis Shaw (USA)* |
American Motors Pacer | Amos Johnson | 144 | 1 | Racing Stock | 29 | 2:21.574 | |
| 13 | 16 | Dennis Shaw (USA)
Jim Woodward (USA) |
American Motors Pacer | Amos Johnson | 143 | 2 | Racing Stock | 31 | 2:22.179 | |
| 14 | 0 | Gene Rutherford (USA)
Tom Wallace (USA) |
Oldsmobile Cutlass | Gene Rutherford | 142 | 1 | American Challenge | 27 | 2:18.091 | |
| 15 | 27 | Ray Mummery (USA)
Jack Refenning (USA) Tom Sheehy (USA) |
Porsche 911S | Ray Mummery | 142 | 5 | GTU | 26 | 2:16.041 | |
| 16 | 10 | Clay Young (USA)
Eddie Johnson (USA) Robert Buchler (USA) |
Pontiac Grand Am | Clay Young | 141 | 2 | American Challenge | 39 | 2:38.664 | |
| 17 | 67 | Charles Pelz (USA)
Neil Upchurch (USA) |
Chevrolet Camaro | Charles F. Pelz | 140 | 7 | GTX | 14 | 2:07.225 | |
| NRF | 9 | John Paul Sr (USA)
Bob Bondurant (USA) |
Porsche 935 9307700910 | Dick Barbour | 133 | accident | GTX | 6 | 1:59.216 | |
| 19 | 19 | Anatoly Arutunoff (USA)
Jose Marina (USA) |
Lancia Stratos | Anatoly Arutunoff | 133 | 6 | GTU | 35 | 2:28.634 | |
| 20 | 65 | Richard J. Valentine (USA)
Roger Pierce (USA) |
Chevrolet Corvette | Richard J. Valentine | 133 | 2 | GTO | 38 | 2:34.011 | |
| 21 | 58 | Diego Febles (PR)
Francisco Romero (YV) |
Porsche 911 Carrera RSR | Diego Febles | 132 | 3 | GTO | 21 | 2:10.664 | |
| 22 | 36 | Dave Panaccione (USA)
Ron Case (USA) |
Porsche 911 | Ron Case | 129 | 7 | GTU | 25 | 2:14.458 | |
| 23 | 13 | Tom Spalding (USA)
Hal Shaw Jr (USA) |
Porsche 935 9306700180 | Hal Shaw Jr | 127 | 9 | GTX | 7 | 1:59.383 | |
| NRF | 23 | Hoyt Overbagh (USA)
Billy Hogan (USA) |
Chevrolet Monza (Rickets) | Hoyt Overbagh | 125 | GTX | 16 | 2:07.607 | ||
| 25 | 21 | Andy Vann (USA)
Joel Neshkin (USA) Dave Richardson (USA)* |
American Motors Gremlin | Andy Vann | 125 | 3 | Racing Stock | 40 | 2:39.904 | |
| NRF | 95 | Hurley Haywood (USA)
Bob Hagestad (USA) |
Porsche 935 9307700913 | Bob Hagestad | 124 | electrics | GTX | 2 | 1:52.545 | |
| NC | 99 | Ralston Long (USA)
Charlie Cook (USA) Mike Danner (USA) |
American Motors Gremlin | Southwind Enterprises | 114 | 4 | Racing Stock | 34 | 2:25.707 | |
| NC | 45 | Jim Gaeto (USA)
Gary Steele (USA) Bob Zulkowski (USA)* |
Porsche 911 | Vann's Auto Body | 109 | 8 | GTU | 36 | 2:29.633 | |
| DNF | 60 | Rusty Bonds (USA)
Ren Tilton (USA) |
Porsche 911 | R&R Racing | 88 | overheating | GTU | 22 | 2:12.870 | |
| DNF | 79 | Robert Wood (USA)
Keith Swope (USA) |
American Motors Pacer | Robert Wood | 80 | engine | Racing Stock | 33 | 2:25.618 | |
| DNF | 78 | Rod Bremner (CDN)
Don McKnight (CDN) |
Triumph TR7 | Abingdon/Ashley Motors | 57 | accident | GTU | 30 | 2:22.060 | |
| DNF | 30 | Gianpiero Moretti (I)
Charles Mendez (USA) |
Porsche 935 | Gianpiero Moretti | 52 | accident damage | GTX | 4 | 1:56.009 | |
| DNF | 28 | Clif Kearns (USA)
Milt Minter (USA) |
Porsche 935 | Clif Kearns | 50 | GTX | 11 | 1:56.778 | ||
| DNF | 61 | Alfred Cosentino (USA)
Jim Downing (USA) |
Mazda RX-3 | Alfred Cosentino | 42 | GTU | 28 | 2:18.654 | ||
| DNF | 06 | Michael Keyser (USA)
R.V.Shulnberg (USA) David Heinz (USA)* |
Chevrolet Corvette Grnwd 008 | R.V.Shulnberg | 39 | overheating | GTX | 5 | 1:58.676 | |
| DNF | 96 | Gene Felton (USA)
Vince Gimondo (USA)^ |
Buick Skylark | Gene Felton | 34 | American Challenge | 9 | 2:07.087 | ||
| DNF | 51 | John Hotchkis Sr (USA)
Dennis Aase (USA) |
Porsche 911 | Wynn's International | 29 | accident | GTU | 24 | 2:13.475 | |
| DNF | 46 | Mauricio de Narvaez (CO)
Albert Naon (USA)^ |
Porsche 911 Carrera RSR | Mauricio de Narvaez | 8 | electrics | GTO | 15 | 2:07.280 | |
| DNF | 15 | Alf Gebhardt (USA)
Franz Romer (USA)^ |
BMW 3.5 CSL | Bavarian Motors International | 1 | accident | GTO | 10 | 2:07.709 | |
| DNF | 49 | Bo Montgomery (USA)
Buzz Cason (USA)^ |
American Motors Concord | Brant Doell | 1 | American Challenge | 41 | no time | ||
| DNS | 26 | John Foshee (USA)
Ernie Smith (USA) Ren Brennan (USA) |
Alfa Romeo GTV | John Foshee | GTU | 37 | 2:32.608 | |||
| DNS | 93 | Bill Whittington (USA)
Don Whittington (USA) |
Porsche 935 | Whittington Brothers | GTX | 2:15.820 | ||||
| DNA | 03 | Cliff Gottlob (USA)
Danny Terrill (USA) |
Chevrolet Corvette | Cliff Gottlob | GTO | |||||
| DNA | 07 | David Cowart (USA) | Porsche 911 Carrera RSR | Morrison | GTO | |||||
| DNA | 16 | Robert Dean (USA)
Bob McGraw (USA) |
Mazda RX-3 | Bob Dean | Racing Stock | |||||
| DNA | 25 | Kenper Miller (USA)
Walt Bohren (USA) |
BMW 3.5 CSL | Kenper Miller | GTO | |||||
| DNA | 38 | Roger Mandeville (USA) | Mazda RX-2 | Roger Mandeville | Racing Stock | |||||
| DNA | 42 | Sam Chitwood (USA) | American Motors Gremlin | Chitwood Racing | Racing Stock | |||||
| DNA | 48 | John Carusso (USA) | Chrevrolet Corvette | John Carusso | GTO | |||||
| DNA | 48 | G.H.Sharp (USA) | Datsun 200SX | G.H.Sharp | Racing Stock | |||||
| DNA | 53 | Joe Dawkins (USA) | Ford Mustang | Joe Dawkins | GTX | |||||
| DNA | 63 | Jim Downing (USA) | Mazda RX-2 | Jim Downing | Racing Stock | |||||
| DNA | 70 | Marion L. Speer (USA)
Windle Turley (USA) |
Porsche 911S | Race Car | GTU | |||||
| DNA | 80 | Herb Adams (USA)
Pat Bedard (USA) |
Oldsmobile Cutlass | Herb Adams | American Challenge | |||||
| DNA | 80 | Scott Hoerr (USA)
Irv Hoerr (USA) |
Datsun 510 | Hoerr Brothers | Racing Stock | |||||
| DNA | 84 | Bob Speakman (USA)
John Maffucci (USA) |
Datsun 260Z | Worldparts | GTU | |||||
| DNA | 86 | John E. Hulen (USA)
Ron Coupland (USA) |
Porsche 914/6 | John E. Hulen | GTU | |||||
| DNA | 92 | David Sloyer (USA)
Jim Fitzgerald (USA) |
Plymouth Volare | David Sloyer | American Challenge | |||||
| DNA | 98 | Ralph Tolman (USA)
Rick Hurst (USA) |
Saab 900T | Racing Team | GTX |
| Winning Time: 6h00m41.283, 116.444 mph/187.398 kph |
| Fastest Lap: Peter Gregg #59 (Porsche 935), 1m53.400, 126.984 mph/204.361 kph |
| * Driver entered for car, but never drove it at meeting |
| ^ Driver practiced car, but did not race it |
| RES - Reserve (Practiced, on standy-by for start) |
| REE - Reserve Entry |
| DNA - Did Not Arrive |
| DNS - Did Not Start |
| DNF - Did Not Finish |
| DNP - Did Not Practice |
| NC - Not Classified |
| DSQ - Disqualified |
| NRF - Not Running At Finish |
| NAC - Not Accepted |
| REJ - Rejected (Did not pass scrutineering) |