| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Vic Elford Gérard Larrousse | 3 | Martini & Rossi Racing | Porsche 917K 020 | 260 | running | ||
| 2 | 5 | Nanni Galli Rolf Stommelen | 33 | Autodelta S.p.a. | Alfa Romeo T33/3 75080-009 | 257 | running | ||
| 3 | 11 | Andrea de Adamich Henri Pescarolo Nino Vaccarella | 32 | Autodelta S.p.a. | Alfa Romeo T33/3 | 248 | running | ||
| 4 | 3 | Pedro Rodríguez de la Vega Jackie Oliver | 2 | J. W. Automotive Engineering Ltd | Porsche 917K 009 | 248 | running | ||
| 5 | 6 | Jo Siffert Derek Bell | 1 | J. W. Automotive Engineering Ltd | Porsche 917K 031 | 244 | running | ||
| 6 | 1 | Mark Donohue David Hobbs | 6 | Penske/White Racing | Ferrari 512 M 1040 | 243 | running | ||
| 7 | 16 | John Greenwood Dick Smothers | 48 | John Greenwood | Chevrolet Corvette | 218 | running | ||
| 8 | 15 | Luigi Chinetti Jr. George Eaton | 21 | North American Racing Team | Ferrari 312 P/71 0872 | 213 | running | ||
| 9 | 33 | Jim Locke Bert Everett | 31 | Locke Lake Colony | Porsche 911 T 11810429 | 203 | running | ||
| 10 | 20 | Dave Heinz Robert R. Johnson Or Costanzo | 57 | Dave Heinz Racing Inc. | Chevrolet Corvette | 199 | running | ||
| 11 | 43 | Ash Tisdelle Peter Kirill | 39 | K&T Enterprises | Porsche 911 S | 199 | running | ||
| 12 | 42 | Harley Cluxton Bob Grossman | 24 | North American Racing Team | Ferrari 365 GTB/4 12547 | 195 | running | ||
| 13 | 27 | John Tremblay Bill McDill | 47 | Bruce Behrens Racing | Chevrolet Camaro | 193 | running | ||
| 14 | 28 | Peter Gregg Hurley Haywood | 59 | Brumos Porsche Audi Corp. | Porsche 914/6 914 043 0705 | 192 | running | ||
| 15 | 34 | Bert Gafford Houghton Smith | 89 | H. Houghton Smith | Chevrolet Camaro | 191 | running | ||
| 16 | 56 | Ray Walle Tom Davey Tom Reddy | 81 | Ray Walle Ent. Inc. | Porsche 911 S | 187 | running | ||
| 17 | 39 | Jacques Duval George Nicholas Bob Bailey | 5 | Jacques Duval | Porsche 914/6 914 043 1017 | 187 | running | ||
| 18 | 37 | Tom Ciccone Len Greenhalgh Dick Roberts | 19 | Thomas T. Ciccone Jr. | Chevrolet Camaro | 183 | running | ||
| 19 | 40 | C.C. Canada Bob Christiansen | 14 | Boykin Auto Repair | Chevrolet Camaro | 183 | running | ||
| 20 | 54 | John Hotchkis Robert Kirby | 40 | Bozzani Porsche Inc. | Porsche 911 S | 180 | running | ||
| 21 | 51 | Michael Walker Daryl Springer | 60 | Wheel Sport Ent. | Porsche 911 S | 176 | running | ||
| 22 | 29 | Bob Mitchell Charlie Kemp | 72 | Robert R. Mitchell | Chevrolet Camaro | 158 | running | ||
| 23 | 57 | Ron Goldleaf Del Taylor Bob Wheat | 84 | Del Taylor | Alfa Romeo GTV | 148 | running | ||
| 24 | 50 | John Elliott Don Gwynne Jr. | 63 | Preston Hood Chevrolet | Chevrolet Camaro | 142 | running | ||
| 25 | 24 | Merv Rosen Dick Jacobs | 74 | Dr. Mervin B. Rosen | Porsche 906 148 | 172 | running | ||
| 26 | 14 | Don Yenko Tony de Lorenzo Jerry Thompson | 11 | Troy Promotions Inc. | Chevrolet Corvette | 150 | running | ||
| 27 | 21 | Tom Fraser Charles Reynolds Jean Sage Clive Baker | 17 | Ring-Free Oil Racing Team | Chevron B16 Ford | 141 | running | ||
| 28 | 44 | Luis Sereix Javier Garcia Ralph Noseda | 42 | Garcia Racing | Chevrolet Camaro | 133 | running | ||
| 29 | 31 | Steve Behr Charles Pete Conrad John Buffum | 29 | Ralph Meaney Inc. | Porsche 914/6 914 043 0691 | 112 | running | ||
| 30 | 52 | Richard Small Robert Fordyce Jerry Lipke | 66 | Performance Automobile | Chevrolet Camaro | 111 | running | ||
| 31 | 30 | Ralph Meaney Gary Wright Forry Laucks | 28 | Ralph Meaney Inc. | Porsche 914/6 914 043 0663 | 187 | gearbox | ||
| 32 | 7 | Peter Revson Swede Savage | 22 | North American Racing Team | Ferrari 512 M 1020 | 169 | gearbox | ||
| 33 | 22 | Mike Rahal Werner Frank Hugh Wise | 58 | Nationwide Food Brokers Racing | Porsche 906 113 | 167 | oil leak | ||
| 34 | 13 | Hugh Kleinpeter Tony Belcher | 61 | Promotional Advertising Corp. | Lola T210 Ford | 161 | oil pressure | ||
| 35 | 45 | John Oliver John Maynard Peter Flanagan | 88 | S-Car-Go-Racing | Chevrolet Camaro | 131 | engine | ||
| 36 | 2 | Mario Andretti Jacky Ickx | 25 | Scuderia Ferrari | Ferrari 312 PB 0878 | 117 | gearbox | ||
| 37 | 9 | Ronnie Bucknum Sam Posey | 23 | North American Racing Team | Ferrari 512 S 1006 | 114 | oil pressure | ||
| 38 | 19 | Bobby Rinzler Clive Baker | 16 | Ring-Free Oil Racing Team | Chevron B16 Ford | 113 | unknown | ||
| 39 | 23 | Cliff Gottlob Ed Lowther Bob Nagel | 86 | Cliff Gottlob | Chevrolet Corvette | 108 | engine | ||
| 40 | 49 | Manuel Garcia Santiago Gonzalez Norberto Mastandrea | 43 | Garcia Racing | Chevrolet Chevy II | 103 | rocker arm | ||
| 41 | 48 | Paul Pettey Tom Dutton | 45 | Reventlow-Pettey Automobiles | Ford Mustang | 95 | engine | ||
| 42 | 41 | Manuel Quintana John Belperche Reinaldo Almeida | 38 | John P. Belperche | Shelby GT500 | 76 | suspension | ||
| 43 | 47 | Larry Wilson Vincent P. Collins | 35 | Collins-Wilson Racing Ent. | Chevrolet Camaro | 64 | gearbox | ||
| 44 | 46 | Anatoly Arutunoff Bill Pryor Brian Goellnicht | 54 | Automobiles of Italy Inc. | Abarth 2000 SP | 61 | fire | ||
| 45 | 25 | Vince Gimondo Chuck Dietrich | 71 | Takondo Racing | Chevrolet Camaro | 61 | valve lifter | ||
| 46 | 26 | Sepp Greger Hans-Dieter Weigel | 56 | Josef Greger | Porsche 907 | 53 | gearbox | ||
| 47 | 18 | Allan Barker Gene Harrington | 50 | John Greenwood | Chevrolet Corvette | 50 | oil leak | ||
| 48 | 17 | Jerry Thompson John Mahler | 12 | Troy Promotions Inc. | Chevrolet Corvette | 42 | oil leak | ||
| 49 | 38 | Bob Gray Terry Keller Len Magner | 46 | Sebring Racing Inc. | Ford Mustang | 39 | brakes | ||
| 50 | 55 | Ben Scott Lowell Lanier Dave Houser | 52 | Waldron Motors Racing Team | MGB | 35 | connecting rod | ||
| 51 | 8 | Masten Gregory Gregg Young | 20 | Young American Racing Team | Ferrari 512 M 1014 | 29 | accident | ||
| 52 | 10 | Nino Vaccarella Toine Hezemans | 34 | Autodelta S.p.a. | Alfa Romeo T33/3 | 27 | fuel system | ||
| 53 | 53 | James Gammon Dean Donley Carlos Garza | 51 | Waldron Motors Racing Team | MGB | 25 | head gasket | ||
| 54 | 36 | Michael Keyser Bruce Jennings | 15 | Toad Hall Racing | Porsche 911 S | 23 | connecting rod | ||
| 55 | 12 | Charles Parsons Dave Weir | 26 | North American Racing Team | Ferrari 512 S 1028 | 20 | radiator | ||
| 56 | 32 | John Cordts Don Pike | 92 | B. F. Goodrich Tire Co. | Chevrolet Camaro | 6 | differential | ||
| 57 | 35 | Janet Guthrie Rosemary Smith Jennifer Birrell | 18 | Ring-Free Oil Racing Team | Chevron B16 Ford | 1 | head gasket | ||
| 58 | 58 | Bob Baechle Robert Luebbe | 64 | Bob Baechle | Chevrolet Corvette | 0 | did not start | 0 | |
| Jack Baldwin | 80 | John T. M. Baldwin | Datsun 510 | 0 | did not qualify | 0 | |||
| Warren Drescher | 53 | Marion E. Dickson | Ford Cortina Lotus | 0 | did not qualify | 0 | |||
| Amos Johnson | 9 | Simone N. Fleming | Chevrolet Corvette | 0 | did not qualify | 0 | |||
| Bill Barnes | 9 | Simone N. Fleming | Chevrolet Corvette | 0 | did not qualify | 0 | |||
| Alphonso Gomez-Mena | 83 | German Motors Inc. | BMW 2002 | 0 | did not qualify | 0 | |||
| Ron Polimeni | 78 | George W. Sanderson | Volvo 122S | 0 | did not qualify | 0 | |||
| Ray Gage | 69 | Triton Racing | Ford Escort | 0 | did not qualify | 0 | |||
| Paul Fleming | 9 | Simone N. Fleming | Chevrolet Corvette | 0 | did not qualify | 0 | |||
| Robert Theall | 78 | George W. Sanderson | Volvo 122S | 0 | did not qualify | 0 | |||
| Ray Kessler | 55 | Clearwater Datsun | Datsun 510 | 0 | did not qualify | 0 | |||
| Juan Montalvo | 83 | German Motors Inc. | BMW 2002 | 0 | did not qualify | 0 | |||
| Bobby Clark | 55 | Clearwater Datsun | Datsun 510 | 0 | did not qualify | 0 | |||
| Tony Garcia | 83 | German Motors Inc. | BMW 2002 | 0 | did not qualify | 0 | |||
| Randy Blessing | 7 | Blessing Racing Inc. | Shelby Cobra | 0 | did not qualify | 0 | |||
| Don Kearney | 55 | Clearwater Datsun | Datsun 510 | 0 | did not qualify | 0 | |||
| Mike Rand | 7 | Blessing Racing Inc. | Shelby Cobra | 0 | did not qualify | 0 | |||
| Robert Luchette | 53 | Marion E. Dickson | Ford Cortina Lotus | 0 | did not qualify | 0 | |||
| John Howard | 69 | Triton Racing | Ford Escort | 0 | did not qualify | 0 | |||
| Jerry Jacob | 80 | John T. M. Baldwin | Datsun 510 | 0 | did not qualify | 0 |