| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Mario Andretti Jacky Ickx | 2 | Scuderia Ferrari | Ferrari 312 PB 0882 | 259 | 8,500 | running | |
| 2 | 4 | Ronnie Peterson Tim Schenken | 3 | Scuderia Ferrari | Ferrari 312 PB 0886 | 257 | running | ||
| 3 | 9 | Nino Vaccarella Toine Hezemans | 33 | Autodelta S.p.A. | Alfa Romeo T33/TT/3 11572-006? | 233 | running | ||
| 4 | 15 | Dave Heinz Robert R. Johnson | 57 | Dana English | Chevrolet Corvette | 221 | running | ||
| 5 | 25 | Peter Gregg Hurley Haywood | 59 | Brumos Porsche Audi Corp. | Porsche 911 S | 215 | running | ||
| 6 | 8 | Gérard Larrousse Joakim Bonnier Reine Wisell | 12 | Joakim Bonnier | Lola T280 HU2/Ford | 213 | running | ||
| 7 | 11 | Roman Pechmann Rudy Bartling Milt Minter | 39 | R. Brezinka | Porsche 910 | 213 | running | ||
| 8 | 23 | Luigi Chinetti Jr. Bob Grossman | 22 | N.A.R.T. | Ferrari 365 GTB/4 14885 | 210 | running | ||
| 9 | 50 | Daniel Muniz José Luis Ruben Novoa | 78 | Daniel Muniz | Porsche 914/6 914 143 0332 | 207 | running | ||
| 10 | 42 | Vince Gimondo Billy Dingman | 17 | Takondo Racing | Chevrolet Camaro | 205 | running | ||
| 11 | 59 | Bruce Jennings Bob Beasley | 77 | Bruce Jennings | Porsche 911 S | 202 | running | ||
| 12 | 36 | Erwin Kremer Günther Huber Juan Carlos Bolaños | 28 | Erwin Kremer | Porsche 911 S | 201 | running | ||
| 13 | 19 | Tony Adamowicz Sam Posey | 21 | N.A.R.T. | Ferrari 365 GTB/4 14889 | 199 | running | ||
| 14 | 56 | Peter Kirill Russell Norburn | 41 | Kirill Racing | Porsche 911 S | 196 | running | ||
| 15 | 29 | Robert Kirby John Hotchkis Bill Cuddy | 27 | Bozzani Porsche Audi Inc. | Porsche 914/6 914 043 0538 | 189 | running | ||
| 16 | 55 | Dieter Oest Mike Tillson Al Holbert | 69 | Holbert's Porsche-Audi Inc. | Porsche 911 T | 186 | running | ||
| 17 | 44 | Bob Gray Terry Keller | 47 | Sebring Racing Inc. | Chevrolet Corvette | 181 | running | ||
| 18 | 40 | Bob Fisher Bruce Ponder | 38 | Hobby Car Enterprises | Chevron B16 Ford | 176 | running | ||
| 19 | 48 | Harry Ingle Charles Reynolds | 18 | Ring Free Oil Racing Team | Ferrari 365 GTB/4 12467 | 175 | running | ||
| 20 | 10 | Nick Craw Bill Barber | 25 | Fred Opert | Chevron B19 Ford | 173 | running | ||
| 21 | 37 | Merv Rosen Jerry Schaub | 74 | Carousel Porsche Audi Inc. | Porsche 906 148 | 172 | running | ||
| 22 | 16 | Tom Waugh Bob Beatty | 56 | Promotional Advertising Corp. | Lola T212 Ford | 167 | running | ||
| 23 | 28 | Bob Mitchell Bob Christiansen | 94 | Bolus & Snopes Ltd. | Chevrolet Camaro | 166 | running | ||
| 24 | 21 | Don Yenko John Cordts | 50 | John Greenwood Racing | Chevrolet Corvette | 163 | running | ||
| 25 | 46 | Héctor Alonso Rebaque Guillermo Rojas y Quer de Barceló | 58 | Brumos Porsche Audi Corp. | Porsche 914/6 | 152 | running | ||
| 26 | 45 | John Tremblay David Ellis-Brown | 10 | C. C. Canada Lumber Co. Inc. | Chevrolet Camaro | 146 | running | ||
| 27 | 34 | John Buffum John Fitzpatrick | 24 | Libra International Racing | Ford Escort RS 1600 | 97 | running | ||
| 28 | 35 | Robert Stoddard Joe Hines Frank Harmstad | 68 | H&S Imports Racing | Porsche 914/6 | 146 | running | ||
| 29 | 60 | Craig Ross Jacques Groleau | 73 | Ross Racing Ltd. | Datsun 240Z | 121 | running | ||
| 30 | 2 | Clay Regazzoni Brian Redman | 4 | Ferrari | Ferrari 312 PB 0884 | 215 | battery | ||
| 31 | 26 | John Greenwood Dick Smothers | 48 | John Greenwood Racing | Chevrolet Corvette | 179 | engine | ||
| 32 | 47 | Michael Summers Bob McClure | 9 | Endurance Promotions Inc. | Chevrolet Camaro | 145 | did not finish | ||
| 33 | 43 | Manuel Garcia Robert Cao | 44 | Larrauri Racing | Chevrolet Nova | 137 | electrical | ||
| 34 | 54 | Neil Potter Oran Ansley Bill Hood | 46 | Sebring Racing Inc. | Ford Mustang | 130 | engine | ||
| 35 | 6 | Vic Elford Helmut Marko | 32 | Autodelta S.p.A. | Alfa Romeo T33/TT/3 11572-002 | 128 | engine | ||
| 36 | 3 | Rolf Stommelen Peter Revson Andrea de Adamich | 31 | Autodelta S.p.A. | Alfa Romeo T33/TT/3 11572-003 | 117 | clutch | ||
| 37 | 24 | Tony de Lorenzo Jerry Thompson | 11 | Troy Promotions Inc. | Ford Mustang | 116 | engine | ||
| 38 | 31 | Michael Keyser Jürgen Barth | 16 | Toad Hall Racing | Porsche 911 S | 102 | engine | ||
| 39 | 58 | Ralph Noseda Jorge Garcia Mark Livingston | 42 | Garcia Racing | Chevrolet Camaro | 92 | engine | ||
| 40 | 51 | Houghton Smith Bert Gafford | 89 | Rinzler Motoracing Inc. | Chevrolet Camaro | 91 | suspension | ||
| 41 | 12 | Hugh Kleinpeter Tony Belcher | 52 | Promotional Advertising Corp. | Chevron B21 Ford | 85 | ignition | ||
| 42 | 39 | Gary Belcher Jeff Stevens | 37 | Gary Belcher | Chevrolet Camaro | 84 | gearbox | ||
| 43 | 17 | Rodolfo Junco Fred Van Beuren IV | 26 | Fred Opert | Chevron B19 Ford | 76 | oil leak | ||
| 44 | 61 | Vincent P. Collins Roberto Gonzalez Jack Beall | 35 | Dr. V. P. Collins | Chevrolet Camaro | 76 | engine | ||
| 45 | 57 | George Stone Russ Poole | 76 | Silverstone Racing Team | Porsche 911 T | 64 | engine | ||
| 46 | 20 | Anatoly Arutunoff Brian Goellnicht | 54 | Automobiles International Inc. | Abarth 2000 SP | 57 | suspension | ||
| 47 | 18 | David Hobbs Skip Scott | 1 | Kirk F. White Motor Racing Inc. | Ferrari 365 GTB/4 14065 | 53 | gearbox | ||
| 48 | 49 | Dave McClain Dave White | 19 | David H. McClain | Porsche 914/6 914 043 1262 | 51 | suspension | ||
| 49 | 27 | John Elliott Bill McDill | 80 | Preston Hood Chevrolet Inc. | Chevrolet Camaro | 50 | oil pressure | ||
| 50 | 7 | Derek Bell Gijs van Lennep | 7 | Gulf Research Racing Company | Mirage M6 Ford 601 | 48 | differential | ||
| 51 | 5 | Andrea de Adamich Nanni Galli Toine Hezemans Nino Vaccarella | 34 | Autodelta S.p.A. | Alfa Romeo T33/TT/3 11572-004 | 37 | tire | ||
| 52 | 53 | Manuel Quintana John Belperche | 30 | Florida Tire Co. Inc. | Shelby GT350 | 33 | accident | ||
| 53 | 22 | Tom Nehl Jim Fitzgerald | 8 | Automotive Engineering | Chevrolet Camaro | 31 | engine | ||
| 54 | 33 | Jim Locke Bob Bailey | 61 | James N. Locke | Porsche 911 S | 23 | accident | ||
| 55 | 38 | Lee McDonald Bert Everett | 70 | Lee McDonald-Algar Porsche Audi | Porsche 914/6 | 22 | oil leak | ||
| 56 | 13 | Charlie Kemp Oscar Koveleski | 23 | Rinzler Motoracing Inc. | Chevrolet Corvette | 21 | accident | ||
| 57 | 30 | Roberto Quintanilla Jose Martinez | 97 | Robeto Quintanilla Jr. | Chevrolet Camaro | 20 | accident | ||
| 58 | 41 | Luis Sereix Javier Garcia | 43 | Garcia Racing | Chevrolet Camaro | 15 | engine | ||
| 59 | 32 | Sepp Greger Arthur Blank Kurt Hild | 63 | Josef Greger | Porsche 910 026 | 10 | engine | ||
| 60 | 14 | Roger McCaig Maurice McCaig | 55 | Roger McCaig Racing | Lola T212 HU37/Ford | 7 | accident | ||
| 61 | 52 | Bill Bean Levon Pentecost Anthony Torgersen | 15 | Toad Hall Racing | Porsche 911 S | 5 | oil leak |