| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Ronnie Peterson Andrea de Adamich | 30 | Autodelta S.p.A. | Alfa Romeo T33/3 | 279 | running | ||
| 2 | 2 | Gijs van Lennep Jo Siffert | 1 | J. W. Automotive Engineering | Porsche 917K 014/029 | 277 | running | ||
| 3 | 4 | Richard Attwood Derek Bell | 2 | J. W. Automotive Engineering | Porsche 917K 015/035 | 259 | running | ||
| 4 | 10 | Lothar Motschenbacher Alain de Cadenet | 63 | Écurie Francorchamps | Ferrari 512 M 1030 | 253 | running | ||
| 5 | 17 | Robert R. Johnson John Greenwood | 49 | John Greenwood Racing | Chevrolet Corvette | 229 | running | ||
| 6 | 19 | Hurley Haywood Peter Gregg | 59 | Brumos Porsche-Audi | Porsche 914/6 914 043 2563 | 228 | running | ||
| 7 | 20 | Dave Heinz Don Yenko | 57 | Or Costanzo | Chevrolet Corvette | 221 | running | ||
| 8 | 28 | Bill Schumacher Bob McClure Bob Kiefer | 41 | Iroquois Racing Associates | Chevrolet Corvette | 210 | running | ||
| 9 | 26 | Bert Everett Bob Beasley | 31 | Locke Development Corporation | Porsche 911 T 11810429 | 168 | running | ||
| 10 | 22 | Anthony Torgersen Levon Pentecost Pat Keating | 68 | Baker Motor Co. | Porsche 911 S | 162 | running | ||
| 11 | 13 | Andrea de Adamich Nanni Galli Vic Elford | 36 | Autodelta S.p.A. | Alfa Romeo T33/3 | 258 | accident | ||
| 12 | 14 | Skip Barber Bobby Rinzler Tom Fraser Pete Harrison | 67 | Baker Motor Co. | Lola T212 Ford | 226 | accident | ||
| 13 | 11 | Mário de Araújo Cabral Tony Adamowicz | 43 | David Piper Racing | Porsche 917K 010 | 191 | running | ||
| 14 | 18 | Horst Kroll Hugh Wise Mike Rahal | 46 | Brokers Racing | Porsche 906 K 113 | 180 | running | ||
| 15 | 5 | Ronnie Bucknum Sam Posey | 14 | North American Racing Team | Ferrari 512 M 1020 | 126 | starter motor | ||
| 16 | 16 | Hugh Kleinpeter Tony Belcher | 61 | Promotional Advertising | Lola T212 Ford | 104 | engine | ||
| 17 | 7 | Rolf Stommelen Henri Pescarolo | 33 | Autodelta S.p.A. | Alfa Romeo T33/3 | 97 | accident | ||
| 18 | 23 | Bob Baechle Michael Summers Fred Kepler | 64 | Bob Baechle | Chevrolet Corvette | 90 | radiator | ||
| 19 | 3 | Jacky Ickx Mario Andretti | 40 | Scuderia Ferrari | Ferrari 312 PB 0878 | 55 | starter motor | ||
| 20 | 1 | Mark Donohue David Hobbs | 6 | Roger Penske/Kirk F. White | Ferrari 512 M 1040 | 53 | steering | ||
| 21 | 15 | Charles Parsons Steve Matchett Tony Dean | 87 | A. G. Dean | Porsche 908/02 015 | 47 | fuel pump | ||
| 22 | 21 | Jim Locke Bob Bailey | 32 | Locke Development Corporation | Porsche 911 S | 25 | wheel | ||
| 23 | 9 | Herbert Müller George Eaton | 48 | Herbert Müller | Ferrari 512 M 1044 | 17 | accident | ||
| 24 | 28 | Bruce Jennings Michael Keyser | 16 | Toad Hall Racing | Porsche 911 T | 13 | accident | ||
| 25 | 24 | Frank Cipelle Dick Hoffman John Greenwood | 50 | John Greenwood Racing | Chevrolet Corvette | 6 | suspension | ||
| 26 | 27 | Bob Bondurant Robin Ormes Bobby Brown | 60 | Bahamas Racing | Lola T70 Mk3B SL76/140/Chevrolet | 2 | throttle cable | ||
| 27 | 8 | Vic Elford Nanni Galli | 35 | Autodelta S.p.A. | Alfa Romeo T33/TT/3 | 0 | did not start | 0 | |
| 28 | 12 | Gregg Young Jim Adams | 21 | Young American Racing Team | Ferrari 512 M 1014 | 0 | did not start | 0 | |
| 29 | 25 | Fritz Hochreuter Rudy Bartling Milt Minter | 80 | Fritz Hochreuter | Porsche 911 | 0 | did not start | 0 | |
| 30 | 30 | John Orr Robert Luebbe | 91 | Robert Luebbe | Chevrolet Corvette | 0 | did not qualify | 0 | |
| 31 | 31 | Dick Durant Erwin Kremer | 70 | Erwin Kremer | Porsche 911 | 0 | did not qualify | 0 | |
| 32 | 32 | George Nicholas Jacques Duval | 5 | Jacques Duval | Porsche 914/6 | 0 | did not qualify | 0 | |
| 33 | 33 | Ray Caldwell Charles Pete Conrad | 12 | Ralph Meaney | Porsche 914/6 | 0 | did not qualify | 0 | |
| 34 | 34 | Dieter Oest Mike Tillson | 37 | Holbert/Oest | Porsche 911 | 0 | did not qualify | 0 |