| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | Ignazio Giunti Nino Vaccarella Mario Andretti | 21 | Scuderia Ferrari | Ferrari 512 S 1026 | 248 | running | ||
| 2 | 15 | Steve McQueen Peter Revson | 48 | Solar Productions Inc. | Porsche 908/02 908-022 | 248 | running | ||
| 3 | 13 | Toine Hezemans Masten Gregory | 33 | Autodelta S.P.A. | Alfa Romeo T33/3 | 247 | running | ||
| 4 | 5 | Pedro Rodríguez de la Vega Leo Kinnunen Jo Siffert | 15 | J. W. Automotive Engineering Ltd | Porsche 917K 013 | 244 | running | ||
| 5 | 10 | Henri Pescarolo Johnny Servoz-Gavin | 34 | Equipe Matra-Elf | Matra-Simca MS650 01 | 242 | running | ||
| 6 | 14 | Mike Parkes Charles Parsons | 22 | N.A.R.T. | Ferrari 312 P Coupe 0872 | 240 | running | ||
| 7 | 69 | Gerhard Koch Gérard Larrousse Richard Attwood Hans-Dieter Dechent | 46 | International Martini Racing | Porsche 908/02 009 | 236 | running | ||
| 8 | 9 | Piers Courage Andrea de Adamich | 31 | Autodelta S.P.A. | Alfa Romeo T33/3 | 231 | running | ||
| 9 | 12 | Rolf Stommelen Nanni Galli | 32 | Autodelta S.P.A. | Alfa Romeo T33/3 75080-002 | 230 | running | ||
| 10 | 25 | Tony de Lorenzo Dick Lang | 1 | Troy Promotions Inc. | Chevrolet Corvette | 219 | running | ||
| 11 | 28 | Bob Johnson Robert R. Johnson Jim Greendyke | 3 | Doug Bergen Racing | Chevrolet Corvette | 214 | running | ||
| 12 | 8 | Dan Gurney François Cevert | 35 | Equipe Matra-Elf | Matra-Simca MS650 02 | 213 | running | ||
| 13 | 44 | Peter Gregg Pete Harrison | 53 | Brumos Porsche Audi Corp. | Porsche 911 T | 205 | running | ||
| 14 | 33 | Vince Gimondo Chuck Dietrich | 40 | Takondo Racing | Chevrolet Camaro | 203 | running | ||
| 15 | 49 | Jacques Duval Bob Bailey George Nicholas | 52 | Jacques Duval | Porsche 911 T | 201 | running | ||
| 16 | 45 | Charlie Kemp Bob Mitchell | 39 | Robert B. Mitchell | Chevrolet Camaro | 191 | running | ||
| 17 | 31 | Bob Grossman Don Yenko | 9 | Marlbank Racing Team | Chevrolet Camaro | 189 | running | ||
| 18 | 32 | John Tremblay Bill McDill | 43 | Bruce Behens Racing | Chevrolet Camaro | 187 | running | ||
| 19 | 50 | Janet Guthrie Rosemary Smith Judy Kondratiff Sharlene Seavey | 73 | Ring Free Oil Racing Team | Austin-Healey Sprite | 187 | running | ||
| 20 | 23 | Jerry Thompson John Mahler | 2 | Troy Promotions Inc. | Chevrolet Corvette | 187 | running | ||
| 21 | 47 | Jim Corwin Donna Mae Mims | 91 | Flem-Cor Enterprises | Chevrolet Camaro | 184 | running | ||
| 22 | 52 | Don Gwynne Jr. John Elliott | 92 | John Elliott | Chevrolet Camaro | 182 | running | ||
| 23 | 34 | Mike Rahal Hugh Wise Werner Frank | 50 | Nationwide Food Brokers Racing | Porsche 906 113 | 181 | running | ||
| 24 | 48 | Vincent P. Collins Larry Wilson | 37 | Collins-Wilson Racing | Ford Mustang | 175 | running | ||
| 25 | 56 | John Belperche James Gammon Raymond Mummery | 57 | Waldron Enterprises Inc. | MGB | 175 | running | ||
| 26 | 58 | Ben Scott Dave Houser Lowell Lanier | 58 | Waldron Enterprises Inc. | MGB | 169 | running | ||
| 27 | 63 | Paul Pettey Roy Hallquist | 18 | Paul Pettey | Ford Mustang | 162 | running | ||
| 28 | 60 | Rod Kennedy Mike Tillson Robert Samm | 80 | Texas Speed Museum | Lancia Fulvia HF | 157 | running | ||
| 29 | 41 | Anatoly Arutunoff Bill Pryor | 54 | Automobiles of Italy Inc. | Abarth 2000 SP | 166 | running | ||
| 30 | 36 | Steve Behr Merv Rosen | 51 | Porsche Audi VWNC | Porsche 906 148 | 158 | running | ||
| 31 | 43 | Carlos Fabre Pepe Aguilar | 63 | Carlos Fabre | Chevron B8 BMW | 143 | running | ||
| 32 | 22 | Bobby Brown Gregg Young Robin Ormes | 26 | Randy's Auto Body | Lola T70 3B SL76/140/Chevrolet | 114 | running | ||
| 33 | 61 | Walter Brown Buzz Marcus Jim Sandman | 97 | HCAS Inc. | BMW 2002 | 105 | running | ||
| 34 | 17 | Hans Laine Gijs van Lennep | 47 | Racing Team AAW | Porsche 908/02 011 | 229 | did not finish | ||
| 35 | 1 | Mario Andretti Arturo Merzario | 19 | Scuderia Ferrari | Ferrari 512 S Spyder 1010 | 227 | gearbox | ||
| 36 | 2 | Jo Siffert Brian Redman Leo Kinnunen | 14 | J. W. Automotive Engineering Ltd | Porsche 917K 009 | 211 | accident damage | ||
| 37 | 35 | Dave Heinz Or Costanzo | 8 | Or Costanzo | Chevrolet Corvette | 191 | did not finish | ||
| 38 | 27 | John Greenwood Allan Barker | 4 | John Greenwood | Chevrolet Corvette | 159 | clutch | ||
| 39 | 4 | Jacky Ickx Peter Schetty | 20 | Scuderia Ferrari | Ferrari 512 S Spyder 1012 | 151 | head gasket | ||
| 40 | 55 | Jon Woodner Dan O'Connor | 56 | British Leyland Motors Inc. | MG Midget | 122 | oil pressure | ||
| 41 | 26 | Ray Heppenstall Francis Grant | 29 | Auto Enterprises | Ford GT40 1049 | 117 | rear axle | ||
| 42 | 6 | Sam Posey Ronnie Bucknum Bert Everett | 24 | N.A.R.T. | Ferrari 512 S Spyder 1006 | 92 | fuel pump | ||
| 43 | 57 | Merle Brennan Logan Blackburn | 55 | British Leyland Motors Inc. | MGB | 84 | oil line | ||
| 44 | 59 | Robert Clark Wayne Marsula | 82 | General Plastics | Lancia Fulvia HF | 78 | valve | ||
| 45 | 46 | Bruce Jennings Bob Tullius | 77 | Bruce Jennings | Porsche 911 T | 78 | engine | ||
| 46 | 68 | Paul Spruell Wilbur Pickett Harry Theodoracopulos | 69 | Scuderia Spruell | Alfa Romeo Giulia Spider | 75 | electrics | ||
| 47 | 21 | Jim Baker Clive Baker Paul Richards Bobby Rinzler | 61 | Ring Free Oil Racing Team | Chevron B16 Ford DBE05 | 70 | crankshaft | ||
| 48 | 3 | Vic Elford Kurt Ahrens Jr. | 16 | Porsche Audi | Porsche 917K 019 | 61 | accident | ||
| 49 | 16 | Tony Adamowicz Luigi Chinetti Jr. | 23 | N.A.R.T. | Ferrari 312 P Coupe 0870 | 56 | overheating | ||
| 50 | 40 | Jim Bandy Fred Stevenson | 67 | Sport Motors | Lotus 47 | 48 | rear hub carrier | ||
| 51 | 38 | Don Kearney Joie Chitwood Dick Boo John Floyd Dave McClain | 38 | David H. McClain | Chevrolet Camaro | 47 | engine | ||
| 52 | 30 | Larry Bock Larry Dent | 41 | Larry Drover | Chevrolet Camaro | 40 | oil leak | ||
| 53 | 24 | Brian Robinson Hugh Kleinpeter | 62 | Chevron Cars | Chevron B16 Ford DBE04 | 38 | accident | ||
| 54 | 52 | Ralph Meaney Bill Bean | 74 | Ralph Meaney Inc. | Porsche 911 T | 36 | engine | ||
| 55 | 29 | Bill Schumacher Bill Petree | 5 | Wm. A. Schumacher | Chevrolet Corvette | 34 | engine | ||
| 56 | 11 | Hans Herrmann Rudi Lins | 17 | Porsche Audi | Porsche 917K 020 | 28 | engine | ||
| 57 | 64 | Robert Whitaker Harvey Eckoff Jack Slottag William Davidson | 87 | Robert W. Whitaker | Volvo 122S | 25 | oil pressure | ||
| 58 | 20 | Piers Forester Andrew Hedges | 30 | Trevor Graham | Ford GT40 1010 | 22 | engine | ||
| 59 | 39 | Sepp Greger Andreas Schmalbach | 49 | Josef Greger | Porsche 910 016 | 22 | engine | ||
| 60 | 51 | Ray Cuomo Bernard Gimbel George Lisberg | 36 | Ray Cuomo Racing | Ford Mustang | 16 | transmission | ||
| 61 | 66 | Ron Polimeni Robert Theall | 86 | Sandy's Spares | Volvo 122S | 8 | piston | ||
| 62 | 54 | Bruce Morehead Milo Vega | 7 | Bruce Morehead Racing | AMC AMX | 8 | engine | ||
| 63 | 65 | Robert Kilpatrick Don Goodrich | 60 | Herrington Motors | MGB | 7 | accident | ||
| 64 | 53 | Reggie Smith Dean Donley Omar Buttari | 59 | Waldron Motors | MG Midget | 2 | engine | ||
| 65 | 62 | Del Taylor Buzz Dyer Hank Sheldon | 79 | Del Taylor | Alfa Romeo 1750 GTV | 2 | engine | ||
| 66 | 19 | Mike De Udy Mike Hailwood | 27 | Grand Bahama Racing Car Co. Ltd. | Lola T70 3B SL76/149/Chevrolet | 1 | brakes | ||
| 67 | 67 | Paul Fleming Amos Johnson Bill Bowers | 88 | Simone N. Fleming | Fiat 124 Coupé | 47 | disqualified | ||
| 68 | 18 | Richard Attwood Gérard Larrousse Gerhard Koch | 45 | International Martini Racing | Porsche 908/02 005 | 31 | disqualified | ||
| 69 | 37 | Harley Cluxton Wilbur Pickett | 25 | Harley E. Cluxton III | Ferrari 365 GTB/4 12547 | 0 | did not start | 0 | |
| 70 | 70 | Dave Roethel John Bentley | 12 | BRM Inc. | Ford Mustang Boss 302 | 0 | did not start | 0 | |
| 71 | 71 | William Cooper Norm Mosher | 85 | HCAS Inc. | Opel Rallye | 0 | did not start | 0 | |
| Jo Siffert Brian Redman | J. W. Automotive Engineering Ltd | Porsche 917K 015 | 0 | practiced car | |||||
| Rod Kennedy Robert Samm Mike Tillson | 81 | Texas Speed Museum | Lancia Fulvia HF | 0 | practiced car |