| 1st | 59 | Gregg / Frisselle | Porsche 935 | Brumos Porsche | 175 | | 1st | GTX |
| 2nd | 94 | Whittington / Whittington | Porsche 935/77A | Whittington Brothers Racing | 167 | | 2nd | GTX |
| 3rd | 6 | Barbour / Rutherford | Porsche 935/77A | Dick Barbour Racing | 161 | | 3rd | GTX |
| 4th | 33 | Fernandez / Cowart | Porsche Carrera RSR | Boricua Racing | 161 | | 1st | GTO |
| 5th | 32 | Earle / Akin | Porsche Carrera RSR | Earle & Akin Racing Associates | 159 | | 4th | GTX |
| 6th | 1 | Kreider / Davidson | Chevrolet Corvette | Dale Kreider | 156 | | 5th | GTX |
| 7th | 76 | Mueller / Thomas | Porsche 911 | Quality Inn | 156 | | 1st | GTU |
| 8th | 68 | Hay / Currin | Chevrolet Corvette | Rick Hay | 156 | | 6th | GTX |
| 9th | 01 | White / Roehrig | Porsche 911 S | J. Dana Roehrig | 151 | | 2nd | GTU |
| 10th | 34 | Drolsom / Davenport | Porsche 911 S | Drolsom Racing | 149 | | 3rd | GTU |
| 11th | 62 | Koll / Hamren | Porsche 914/6 | William Koll | 148 | | 4th | GTU |
| 12th | 7 | Johnson / Mandeville | AMC Pacer | Amos Johnson | 144 | | 1st | RS |
| 13th | 16 | Shaw / Woodward | AMC Pacer | Amos Johnson | 143 | | 2nd | RS |
| 14th | 0 | Rutherford / Wallace | Oldsmobile Cutlass | Gene Rutherford | 142 | | 1st | AC |
| 15th | 27 | Mummery / Refenning / Sheehy | Porsche 911 S | Ray Mummery | 142 | | 5th | GTU |
| 16th | 10 | Young / Johnson / Buchler | Pontiac Grand Am | Clay Young | 141 | | 2nd | AC |
| 17th | 67 | Pelz / Upchurch | Chevrolet Camaro | Charles F. Pelz | 140 | | 7th | GTX |
| 18th | 9 | Paul / Bondurant | Porsche 935 | Dick Barbour | 133 | Accident | 8th | GTX |
| 19th | 19 | Arutunoff / Marina | Lancia Stratos | Anatoly Arutunoff | 133 | | 6th | GTU |
| 20th | 65 | Valentine / Pierce | Chevrolet Corvette | RJV Enterprises | 133 | | 2nd | GTO |
| 21st | 58 | Febles / Romero | Porsche Carrera RSR | Diego Febles Racing | 132 | | 3rd | GTO |
| 22nd | 36 | Panaccione / Case | Porsche 911 | Ron Case | 129 | | 7th | GTU |
| 23rd | 13 | Spalding / Shaw, Jr. | Porsche 935 | Hal Shaw Racing | 127 | | 9th | GTX |
| 24th | 23 | Overbagh / Hagan | Chevrolet Monza | Overbagh Motor Racing | 125 | DNF | 10th | GTX |
| 25th | 21 | Vann / Neshkin | AMC Gremlin | Andy Vann | 125 | | 3rd | RS |
| 26th | 95 | Haywood / Hagestad | Porsche 935 | Bob Hagestad | 124 | Electrics | 11th | GTX |
| 27th | 99 | Long / Cook / Danner | AMC Gremlin | Southwind Enterprises | 114 | | 4th | RS |
| 28th | 45 | Gaeta / Steele | Porsche 911 | Vann's Auto Body | 109 | | 8th | GTU |
| 29th | 60 | Bond / Tilton | Porsche 911 | R & R Racing | 88 | Overheating | 9th | GTU |
| 30th | 79 | Wood / Swope | AMC Pacer | Robert Wood | 80 | Engine | 5th | RS |
| 31st | 78 | Bremner / McKnight | Triumph TR7 | Abingdon/Ashley Motors | 57 | Accident | 10th | GTU |
| 32nd | 30 | Moretti / Mendez | Porsche 935 | Electrodyne Inc. | 52 | Accident damage | 12th | GTX |
| 33rd | 28 | Kearns / Minter | Porsche 935 | Desperado Racing | 50 | DNF | 13th | GTX |
| 34th | 61 | Cosentino / Downing | Mazda RX-3 | Alfred Cosentino | 42 | DNF | 11th | GTU |
| 35th | 06 | Keyser / Shulnburg | Chevrolet Corvette | Shulnburg Scrap Metal | 39 | Overheating | 14th | GTX |
| 36th | 96 | Felton | Buick Skylark | Gene Felton | 34 | DNF | 3rd | AC |
| 37th | 51 | Hotchkis / Aase | Porsche 911 | Wynn's International | 29 | Accident | 12th | GTU |
| 38th | 46 | DeNarvaez | Porsche Carrera RSR | Mauricio DeNarvaez | 8 | Electrics | 4th | GTO |
| 39th | 15 | Gebhardt | BMW 3.5 CSL | Bavarian Motors International | 1 | Accident | 5th | GTO |
| 40th | 49 | Montgomery | AMC Concord | Brant Doell | 1 | DNF | 4th | AC |