| 1st | 98 | Ken Miles / Lloyd Ruby | Ford Mk II | Shelby American Inc. | 1:57.8000 |
| 2nd | 65 | Jo Bonnier / Phil Hill | Chaparral 2D Chevrolet | Chaparral Cars Inc. | 1:58.0000 |
| 3rd | 95 | Walt Hansgen / Mark Donohue | Ford Mk II | Holman & Moody | 1:58.2000 |
| 4th | 21 | Pedro Rodriguez / Mario Andretti | Ferrari 365 P2 | North American Racing Team | 1:59.2000 |
| 5th | 25 | Lucien Bianchi / Gérald Langlois van Ophem / "Jean Beurlys" | Ferrari 365 P2 | Ecurie Francorchamps | 2:00.2000 |
| 6th | 87 | Richie Ginther / Ronnie Bucknum | Ford Mk II | Holman & Moody | 2:01.6000 |
| 7th | 96 | Chris Amon / Bruce McLaren | Ford Mk II | Shelby American Inc. | 2:01.6000 |
| 8th | 32 | George Follmer / Don Wester / Paul Hawkins | Ferrari 250 LM | North American Racing Team | 2:03.2000 |
| 9th | 28 | Denny Hulme / Vic Wilson | Ferrari 250 LM | Team Chamaco Collect | 2:03.8000 |
| 10th | 91 | Dick Thompson / Skip Scott / Peter Revson | Ford GT40 | Essex Wire Corporation | 2:04.0000 |
| 11th | 97 | Dan Gurney / Jerry Grant | Ford Mk II | Shelby American Inc. | 2:04.0000 |
| 12th | 27 | David Piper / Richard Attwood | Ferrari 250 LM | David Piper | 2:04.8000 |
| 13th | 31 | John Fulp / Bill Rutan / Bruce Jennings | Ferrari 330 P | John Fulp | 2:04.8000 |
| 14th | 22 | Jochen Rindt / Bob Bondurant | Ferrari 250 LM | North American Racing Team | 2:05.0000 |
| 15th | 92 | Peter Revson / Masten Gregory / Ed Lowther | Ford GT40 | Essex Wire Corporation | 2:05.0000 |
| 16th | 24 | Innes Ireland / Mike Hailwood / George Drummond | Ferrari 250 LM | Drummond Racing Organisation | 2:06.6000 |
| 17th | 29 | Paul Hawkins / Jackie Epstein | Ferrari 250 LM | Epstein Enterprises Ltd. | 2:07.4000 |
| 18th | 15 | Hans Herrmann / Herbert Linge | Porsche 906 | Porsche System Engineering | 2:07.6000 |
| 19th | 86 | Peter Sutcliffe / Bob Grossman | Ford GT40 | Ford Advanced Vehicles | 2:08.0000 |
| 20th | 26 | "Eldé" / Jacky Ickx | Ferrari 250 LM | Ecurie Francorchamps | 2:08.4000 |
| 21st | 6 | Dick Guldstrand / Ben Moore / George Wintersteen | Chevrolet Corvette Sting Ray coupé | Roger Penske | 2:10.6000 |
| 22nd | 20 | Sam Posey / Jim Haynes / Harry Theodoracopulos | Porsche 904 GTS | Sam Posey | 2:11.8000 |
| 23rd | 93 | Harold Keck / Oscar Koveleski / Ed Lowther | Shelby Cobra | Scuderia Bear | 2:13.2000 |
| 24th | 16 | Gerhard Mitter / Joe Buzzetta | Porsche 904 GTS | Porsche System Engineering | 2:13.4000 |
| 25th | 89 | Dan Gerber / Bob Johnson / Peter Lerch | Shelby Cobra | Dan Gerber | 2:13.6000 |
| 26th | 17 | Günther Klass / Udo Schütz | Porsche 904 GTS | Porsche System Engineering | 2:15.2000 |
| 27th | 88 | William Wonder / Herb Wetanson | Ford GT40 | Bill Wonder | 2:15.4000 |
| 28th | 14 | Peter Gregg / George Drolsom | Porsche 904 GTS | Brumos Porsche Florida | 2:16.0000 |
| 29th | 99 | Roger West / Dick Macon | Ford Mustang | Joe Treadwell | 2:17.2000 |
| 30th | 47 | David Lane / Don Sesslar | Porsche 904 GTS | David Lane | 2:17.4000 |
| 31st | 12 | Dave Hull / Herb Byrne / Bob Kingham | Jaguar E-type | Jaguar of Florida | 2:20.4000 |
| 32nd | 23 | Mark Konig / Peter Clarke / Bob Hurt | Ferrari 250 LM | Peter Clarke | 2:21.6000 |
| 33rd | 30 | Larry Perkins / Jack Slottag | Ferrari 250 GTO | Jack Slottag | 2:23.0000 |
| 34th | 90 | Don Kearney / Michael Reina | Shelby GT350 | Michael Reina | 2:24.0000 |
| 35th | 94 | Ralph Noseda / Grant Clark / Bob Thorpe / Harry Heuer | Shelby Cobra | Ralph Noseda | 2:24.4000 |
| 36th | 79 | Paul Richards / Ray Cuomo | Austin-Healey Sprite | Autosport | 2:27.4000 |
| 37th | 75 | Art Riley / Russ MacGrotty | Yenko Stinger | McMillan Ring Free Oil Co. | 2:32.8000 |
| 38th | 67 | George Cornelius / Dick Boo / Bob Brown | Chevrolet Corvette Sting Ray | Cannon Auto | 2:28.0000 |
| 39th | 18 | Jack Ryan / Lin Coleman / Bill Bencker | Porsche 911 | RBM Motors | 2:31.8000 |
| 40th | 59 | Don Yenko / John W. Forte / Art Riley | Volvo P1800 | Art Riley | 2:37.0000 |
| 41st | 54 | Ray Stoutenburg / Gene Jones / Larry Isley | Plymouth Barracuda | Raymond Stoutenburg | 2:37.2000 |
| 42nd | 19 | Duncan Forlong / Leland Dieas / David McClain | Porsche 356B Super 90 | Dave McClain | 2:37.6000 |
| 43rd | 45 | Herb Byrne / Milo Vega | Triumph TR4A | John Kingham | 2:40.8000 |
| 44th | 36 | Wilbur Pickett / Bill Bean | Alfa Romeo Giulia Zagato | Cannon Auto | 2:41.0000 |
| 45th | 41 | Hugh Kleinpeter / Harry Fry / Gene Parsons | Triumph LM | E. P. Drescher | 2:41.4000 |
| 46th | 7 | John Bolander / Bob Winkelmann / John Olson | Ford Cortina GT | John Olson | 2:41.6000 |
| 47th | 55 | Al Weaver / John Fraim / Chet Freeman | Lotus Elan | J. Randall | 2:42.6000 |
| 48th | 77 | John Bentley / John E. Hill | Sunbeam Tiger | Space Science | 2:43.2000 |
| 49th | 44 | Ernie Croucher / Walter Glenn / Bill Eve | MGB | Kenneth G. Chambliss | 2:45.0000 |
| 50th | 43 | Dana Kelder / Ara Dube / Red Wilson | Triumph TR4A | Cannon Auto | 2:46.0000 |
| 51st | 73 | William McKemie / Terry Petmecky / Fred Opert | Elva Courier Mk IV | Fred Opert | 2:46.2000 |
| 52nd | 42 | Ken Hughes / Fred Salo / John Addison | Triumph TR4 | John Addison | 2:46.6000 |
| 53rd | 5 | Spurgeon May / Bobby Allison | Chevrolet Corvair | Robert Harper | 2:47.0000 |
| 54th | 56 | Ike Maxwell / William J. Martin | Volvo P1800 | William J. Martin | 2:47.4000 |
| 55th | 84 | Ben Scott / Peter Flanagan / Roger Chastain | Alfa Romeo Giulia Sprint | Pompano Sports Cars | 2:48.4000 |
| 56th | 40 | George Waltman / Art Swanson / Nick Cone | Triumph TR4 | Genser Forman | 2:57.0000 |
| 57th | 80 | Donna Mae Mims / Janet Guthrie / Suzy Dietrich | Sunbeam Alpine | Autosport | 2:59.0000 |
| 58th | 78 | Rosemary Smith / Smokey Drolet | Sunbeam Alpine | Autosport | 3:00.0000 |
| 59th | 74 | Larry Hess / Tommy Hess | Rambler Marlin | Queen City Rambler | 3:15.9000 |
| 60th | 85 | Bill Clark / Bryan Crow / Anatoly Arutunoff | Alfa Romeo Giulia Sprint | Anatoly Arutunoff | 3:16.6000 |