| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | John Fitzpatrick Brian Redman Dick Barbour | 6 | Dick Barbour Racing/Sachs USA | Porsche 935 K3/80 000 00023 | 245 | running | ||
| 2 | 3 | John Paul Jr. John Paul | 18 | John Paul | Porsche 935 009 00043 | 245 | running | ||
| 3 | 6 | Danny Ongais Ted Field | 00 | Ted Field | Porsche 935 K3/80 000 00017 | 244 | running | ||
| 4 | 5 | Hans Heyer Walter Röhrl | 14 | Lancia Corse Italia | Lancia Beta Montecarlo 1007 | 241 | running | ||
| 5 | 14 | John Fitzpatrick Rick Mears Skeeter McKitterick | 4 | Dick Barbour Racing/Sachs USA | Porsche 935 K3 000 0009 | 237 | running | ||
| 6 | 10 | Paul Miller Bob Akin Kees Nierop Charles Mendez | 5 | Racing Associates | Porsche 935 K3 009 00016 | 234 | running | ||
| 7 | 11 | Martino Finotto Carlo Facetti | 16 | Jolly Club of Milan | Lancia Beta Montecarlo 1006 | 232 | running | ||
| 8 | 15 | Bob Tullius Bill Adam | 44 | JRT/Quaker State | Triumph TR8 | 223 | running | ||
| 9 | 12 | Dale Whittington Preston Henn | 09 | Thunderbird Racing | Porsche 935 K3 930 890 0021 | 219 | spin | ||
| 10 | 24 | Walt Bohren Jeff Kline John Morton | 17 | Racing Beat | Mazda RX-7 | 218 | running | ||
| 11 | 21 | Maurico DeNarvaez Tony Garcia Albert Naon | 46 | DeNarvaez Enterprises | Porsche Carrera RSR 911 360 1099 | 215 | running | ||
| 12 | 22 | Roger Mandeville Brad Frisselle | 47 | Brad Frisselle Racing | Mazda RX-7 | 214 | running | ||
| 13 | 28 | Ernesto Soto Pierre Honegger | 73 | Z & W Enterprises | Mazda RX-7 | 208 | running | ||
| 14 | 7 | Hurley Haywood Bruce Leven | 86 | Bruce Leven | Porsche 935/80 000 00024 | 205 | running | ||
| 15 | 31 | Norm Ridgely Rainer Brezinka Fritz Hochreuter | 50 | Fritz Hochreuter | Porsche 911 | 204 | running | ||
| 16 | 26 | Bill Koll Jim Cook | 62 | Koll Motor Sport | Porsche 911 | 202 | running | ||
| 17 | 27 | Phil Currin John Carusso | 48 | Dynasales | Chevrolet Corvette | 195 | running | ||
| 18 | 9 | Piercarlo Ghinzani Bernard Darniche | 15 | Lancia Corse Italia | Lancia Beta Montecarlo 1005 | 186 | accident | ||
| 19 | 23 | Jon Reski Brian Hardacre Ludwig Heimrath Jr. | 36 | Climax Racing | Porsche Carrera | 155 | running | ||
| 20 | 29 | Dick Davenport Frank Carney | 23 | Raytown Datsun | Datsun 280ZX | 136 | accident | ||
| 21 | 8 | Ludwig Heimrath Johnny Rutherford | 07 | Heimrath Racing | Porsche 935 930 770 0958 | 127 | suspension | ||
| 22 | 34 | Bruce Kulczyk Peter Bulkowski | 42 | Bruce Kulczyk | Triumph TR8 | 120 | running | ||
| 23 | 13 | Maurice Carter R.J. Valentine | 80 | Carter Racing | Chevrolet Camaro | 104 | accident damage | ||
| 24 | 19 | Rudy Bartling Klaus Bytzek | 69 | Bytzek/Litens Automotive | Porsche Carrera RSR | 103 | accident | ||
| 25 | 2 | Bobby Rahal Bob Garretson John Fitzpatrick | 9 | Dick Barbour Racing | Porsche 935 K3 009 00030 | 98 | spin | ||
| 26 | 20 | Terry Herman Albert Naon Tony Garcia | 54 | Montura Racing | Porsche Carrera RSR | 64 | did not finish | ||
| 27 | 17 | Allen Berg Doug Rowe Jacques Bienvenue Eppie Wietzes | 33 | Fifth Essence Racing | Chevrolet Corvette | 59 | suspension | ||
| 28 | 33 | George Drolsom Hugh Davenport | 34 | Drolsom Racing | Porsche 911 | 59 | clutch | ||
| 29 | 25 | Sam Posey Fred Stiff | 95 | NTS Racing | Datsun 240Z | 58 | did not finish | ||
| 30 | 16 | Luis Mendez Mandy Gonzalez | 68 | Hector Huerta Racing | Porsche Carrera RSR 005 0009 | 56 | accident | ||
| 31 | 30 | Murray Edwards Craig Carter | 72 | Murray Edwards | Chevrolet Corvette | 54 | gearbox | ||
| 32 | 18 | Jeff Kline Walt Bohren Jim Downing | 7 | Racing Beat | Mazda RX-7 | 32 | accident | ||
| 33 | 4 | Ted Field Danny Ongais | 0 | Ted Field | Porsche 935 K3 | 0 | did not start | 0 | |
| 34 | 32 | Gary Hirsch Peter Aschenbrenner | 22 | Alps Restoration | Porsche 914/6 | 0 | did not start | 0 | |
| 35 | 35 | Jim Sanborn Paul Canary | 02 | Paul Canary | Chevrolet Corvette | 0 | did not start | 0 | |
| 36 | 36 | Neil Wiernicki Michael Wiernicki Tom Rynone | 90 | Neil Wiernicki | Chevrolet Corvette | 0 | did not start | 0 |