| 1st | 3 | A. J. Foyt / Dan Gurney | Ford Mk II | Ford Motor Co. (Shelby American) | 1:55.1000 |
| 2nd | 15 | Phil Hill / Mike Spence | Chaparral 2F Chevrolet | Chaparral Cars, Inc. | 1:55.3600 |
| 3rd | 26 | Pedro Rodriguez / Jean Guichet | Ferrari 412 P Berlinetta | North American Racing Team | 1:55.4000 |
| 4th | 23 | Lorenzo Bandini / Chris Amon | Ferrari 330 P3/4 Spyder | Ferrari s.p.a. | 1:55.6000 |
| 5th | 5 | Mario Andretti / Richie Ginther | Ford Mk II | Ford Motor Co. (Holman & Moody) | 1:56.3600 |
| 6th | 24 | Mike Parkes / Ludovico Scarfiotti | Ferrari 330 P4 Coupé | Ferrari s.p.a. | 1:56.4000 |
| 7th | 1 | Bruce McLaren / Lucien Bianchi | Ford Mk II | Ford Motor Co. (Shelby American) | 1:56.7000 |
| 8th | 14 | Bob Johnson / Bruce Jennings | Chaparral 2D Chevrolet | Chaparral Cars, Inc. | 1:56.8000 |
| 9th | 6 | Denny Hulme / Lloyd Ruby | Ford Mk II | Ford Motor Co. (Holman & Moody) | 1:57.5000 |
| 10th | 2 | Ronnie Bucknum / Frank Gardner | Ford Mk II | Ford Motor Co. (Shelby American) | 1:57.6000 |
| 11th | 33 | Willy Mairesse / "Jean Beurlys" | Ferrari 412 P Berlinetta | Ecurie Francorchamps | 1:58.6000 |
| 12th | 4 | Mark Donohue / Peter Revson | Ford Mk II | Ford Motor Co. (Holman & Moody) | 1:59.4000 |
| 13th | 11 | Dick Thompson / Jacky Ickx | Ford GT40 | J. W. Automotive (GD) | 2:01.1000 |
| 14th | 31 | David Piper / Richard Attwood | Ferrari 365 P2/3 | David Piper | 2:01.8000 |
| 15th | 34 | Charlie Kolb / John Fulp | Ferrari Dino 206 S | Harrah Modern Classic Motors | 2:04.6000 |
| 16th | 51 | Gerhard Mitter / Jochen Rindt | Porsche 906 E | Porsche of Stuttgart | 2:04.9000 |
| 17th | 52 | Hans Herrmann / Jo Siffert | Porsche 910 | Porsche of Stuttgart | 2:05.0000 |
| 18th | 56 | Charles Vögele / Walter Habegger | Porsche 906 LH | Charles Vogele | 2:05.6000 |
| 19th | 9 | Umberto Maglioli / Mario Casoni | Ford GT40 | Brescia Racing Corse | 2:06.6000 |
| 20th | 55 | Dieter Spoerry / Rico Steinemann | Porsche 906 LH | Squadra Tartaruga Switz. | 2:08.0000 |
| 21st | 53 | Udo Schütz / Rolf Stommelen / Gijs van Lennep | Porsche 906 | Porsche of Stuttgart | 2:10.4000 |
| 22nd | 36 | George Wintersteen / Joe Welch / Bob Brown | Chevrolet Camaro | Roger Penske | 2:10.6000 |
| 23rd | 58 | Tony Dean / Trevor Taylor | Porsche 906 | Rod Savyer | 2:10.7000 |
| 24th | 20 | William Wonder / Raymond Caldwell | Ford GT40 | William Wonder, Inc. | 2:10.8000 |
| 25th | 67 | Fred van Beuren, Jr. / Paul Jett / Don Pike | Shelby GT350 | Dos Caballos Racing, Inc. | 2:14.2000 |
| 26th | 32 | Peter Clarke / Edward Nelson | Ferrari 250 LM | Peter Clarke | 2:15.0000 |
| 27th | 18 | Roger West / Bobby Allison | Shelby GT350 | Roger West | 2:16.0000 |
| 28th | 66 | Tom Yeager / Walt Hane / Peter Feistmann | Ford Mustang | Thomas D. Yaeger | 2:17.0000 |
| 29th | 29 | Carlos Salas Guterrez / Hector Rebaque, Sr. | Ferrari 275 GTB/C | Pedro Rodriguez, Jr. | 2:17.1000 |
| 30th | 76 | John McComb / Dave Dooley | Ford Mustang | John McComb | 2:19.7000 |
| 31st | 40 | Craig Fisher / George Eaton | Chevrolet Camaro | Craig Fisher | 2:19.8000 |
| 32nd | 7 | Herb Byrne / Dick Thetford / Russell Beazell | Shelby Cobra | Herb W. Byrne | 2:19.9000 |
| 33rd | 82 | Harry Theodoracopulos / Sam Posey / Jim Haynes | Alfa Romeo GTA | Harry Theodoracopulos | 2:20.0000 |
| 34th | 63 | Bob Grossman / Martin Krinner | Shelby GT350 | Dockery Ford, Inc. | 2:20.2000 |
| 35th | 54 | Jack Ryan / Bill Bencker | Porsche 911 S | RBM Motors | 2:21.7000 |
| 36th | 21 | Brock Yates / Charles Krueger | Dodge Dart | Brock Yates | 2:22.8000 |
| 37th | 16 | Joie Chitwood / Jack McClure | Chevrolet Camaro | Joie Chitwood, Sr. | 2:23.0000 |
| 38th | 19 | Ray Heppenstall / Bill Seeley | Ford Falcon | Howmet Corp. | 2:24.4000 |
| 39th | 72 | Paul Richards / Ray Cuomo / John Norwood | Ford Mustang | Ring Free Oil Racing Team | 2:24.7000 |
| 40th | 46 | Richard Robson / Rajah Rodgers / Bill Buchman | Jaguar XKE | Richard B. Robson, Jr. | 2:26.0000 |
| 41st | 90 | Del Russo Taylor / Bob Pratt / Charles Lyon | Alfa Romeo GTA | Del O. Taylor | 2:27.3000 |
| 42nd | 61 | George Drolsom / Harold Williamson | Porsche 911 | George P. Drolsom | 2:29.4000 |
| 43rd | 47 | Peter Gethin / Fred Opert / Roy Pike | Chevron B4 BMW | Fred Opert Racing | 2:31.5000 |
| 44th | 86 | Bill Eve / Ernie Croucher / Pete Glenn | MGB | Kenneth G. Chambliss | 2:32.8000 |
| 45th | 73 | John Tremblay / Larry Perkins | Volvo P1800 | Dr. J. Peter Marinelli | 2:38.3000 |
| 46th | 22 | Frank Karmatz / Raymond Caldwell | Plymouth Barracuda | JoKar Racing Associates | 2:38.6000 |
| 47th | 85 | Ken Goodman / Jim Baker | Alfa Romeo GTA | Jim Baker | 2:40.0000 |
| 48th | 45 | C. C. Canada / Joe Hines, Jr. / T. J. Kelly | Triumph TR4 | Joe C. Hines, Jr. | 2:40.6000 |
| 49th | 48 | Tim Burr / Buell Owen / Clint Cavin | Triumph TR4 | Tim Burr (Atlas Van Lines) | 2:42.0000 |
| 50th | 71 | Anita Taylor / Smokey Drolet / Janet Guthrie | Ford Mustang | Ring Free Oil Racing Team | 2:42.6000 |
| 51st | 74 | Arthur Mollin / Art Riley | Volvo 122 S | Arthur Mollin Racing Ent. | 2:43.2000 |
| 52nd | 44 | Ray Stoutenburg / Jim Taylor / Roger McCluskey | Triumph TR4A | Raymond Stoutenburg | 2:43.2000 |
| 53rd | 96 | Donna Mae Mims / Suzy Dietrich | ASA 411 | Jim Baker | 2:44.8000 |
| 54th | 42 | Steven Somner / Guido Levetto | Triumph TR4A | Cannons Auto Service | 2:45.7000 |
| 55th | 75 | Ike Maxwell / William J. Martin | Volvo 122 S | Dr. I. A. Maxwell, Jr. | 2:46.5000 |
| 56th | 89 | Ross L. Bremer / Don Kearney / Billy Turner | Ford Cortina Lotus | Ross L. Bremer | 2:46.7000 |
| 57th | 43 | Dana Kelder / Ara Dube | Triumph TR4A | Cannons Auto Service | 2:47.0000 |
| 58th | 84 | Dick Ganger / Al Weaver / Ken Goodman | MGB GT | Richard N. Ganger | 2:49.0000 |
| 59th | 77 | John Bentley / Brian Beddow | Alfa Romeo GTA | Precision Auto, Inc. | 2:50.1000 |
| 60th | 28 | Jo Schlesser / Masten Gregory / Peter Gregg | Ferrari 365 P2 | North American Racing Team | no time |
| 61st | 8 | Tony Denman / Bob Brown | Chevrolet Corvette Grand Sport | Jim White Chevrolet Inc. | no time |
| 62nd | 87 | Chet Freeman / Al Weaver / John Marshall | Ford Cortina Lotus | Chet Freeman | no time |