| 1st | 68 | Jim Hall / Roger Penske / Hap Sharp | Chaparral 2A Chevrolet | Jim Hall |
| 2nd | 28 | Bud Gates | Genie Mk VIII Chevrolet | Bud Gates |
| 3rd | 59 | Dick Doane / Dick Thompson | Chevette (McKee Mk I Chevrolet) | Doane of Dundee |
| 4th | 26 | Ralph Salyer / Nate Karras | Cro-Sal Special (Cheetah) | Ralph Salyer |
| 5th | 98 | Ken Miles / Ronnie Bucknum | Shelby Cobra | Carrol Shelby |
| 6th | 92 | George Wintersteen / Ed Lowther | Cooper Monaco T61 Chevrolet | Bernice Wintersteen |
| 7th | 67 | Roger Penske / Hap Sharp / Jim Hall | Chevrolet Corvette Grand Sport | Jim Hall |
| 8th | 2 | Walt Hansgen / Augie Pabst | Ferrari 250 LM | John Mecom, Jr. |
| 9th | 99 | Bob Johnson / Ed Leslie | Shelby Cobra 289 | Carrol Shelby |
| 10th | 79 | Bill Wuesthoff / Joe Buzzetta | Elva Mk VII S Porsche | Edward Weschler, Jr. |
| 11th | 61 | Roy Kumnick / Bob Spooner | Cooper Monaco T49 Ford | Tero-Corvette |
| 12th | 76 | John Cannon / Charlie Hayes | Elva Mk VII Porsche | Oliver C. Schmidt |
| 13th | 97 | Ken Miles / John Morton / Skip Scott | Shelby Cobra | Carrol Shelby |
| 14th | 64 | Doug Revson / Lake Underwood | Elva Mk VII S BMW | Douglas Revson |
| 15th | 31 | Don Skogmo / Scott Beckett | Genie Mk VIII Ford | Don R. Skogmo |
| 16th | 17 | Jack Ensley | Apache '62 Chevrolet | Jack Ensley |
| 17th | 39 | Charles Cox / Dan Fowler | Cooper King Cobra Ford | Charles C. Cox |
| 18th | 9 | Gary Wilson / Enus Wilson | Chaparral 1 Chevrolet | Gary M. Wilson |
| 19th | 24 | Dave Causey / Dean Causey | Lotus 19 Ford | Dean Causey |
| 20th | 66 | Lee Hall / Mike Hall | Elva Mk VII S Porsche | E. L. Hall |
| 21st | 7 | James Scott / Carl Haas | Elva Mk VII BMW | Carl A. Haas |
| 22nd | 44 | Jerry Hansen / Dick Roe | Chevette (McKee Mk II Chevrolet) | Jerry Hansen |
| 23rd | 74 | Ralph Trieschmann / Charlie Hayes | Elva Mk VII Porsche | Oliver C. Schmidt |
| 24th | 89 | Pete Harrison / Art Huttinger | Shelby Cobra | Arthur B. Harrison |
| 25th | 1 | Augie Pabst | Lola Mk.6 GT Chevrolet | John Mecom, Jr. |
| 26th | 75 | Bob Markley / Charlie Hayes | Elva Mk VII Porsche | Oliver C. Schmidt |
| 27th | 86 | Don Wolf / Dick Talbot | Elva Mk VII S Ford | Donald E. Wolf |
| 29th | 84 | Robert Shaw / Homer Rader | Lotus 23B Climax | Robert J. Shaw |
| 30th | 55 | Tom Terrell / Mak Kronn | Lotus 23B Climax | Sports International |
| 31st | 29 | Ed Cicotte / Dave Moothart | Lotus 23B | Edmond B. Cicotte |
| 33rd | 16 | David Dunbar / Chuck Cantwell | Elva Mk VII S BMW | C. William Allen |
| 34th | 12 | Owen Rutherford / Frankie Ballard / Hamilton Vose | Cooper Monaco T49 Maserati | Owen Rutherford |
| 35th | 25 | Horst Kwech | Ausca Mk.2 Alfa Romeo | Bill Knauz |
| 36th | 82 | Dick Young / Warren Shamlian | Elva Mk VII Ford | Richard F. Young |
| 37th | 22 | M. R. J. Wyllie | Lola Mk.1 Cosworth | M. R. J. Wyllie |
| 38th | 15 | Jim Johnston / Bud Seaverns | Elva Mk VII S Porsche | James R. Johnston |
| 39th | 18 | Jerry Nelson / Robert Fox | Porsche 718 RS 60 | Gilbert E. Horton |
| 40th | 32 | John Everly | AC Cobra | John Andrew Everly |
| 41st | 46 | Dick Durant / John Martin | Durant Special | Dick Q. Durant |
| 42nd | 49 | Peter Goetz / Frank Wildman | Elva Mk VII Ford | George F. Wintersteen |
| 43rd | 65 | Pat Manning | AC Cobra | Pat Manning |
| 44th | 94 | Wayne Burnett / Dudley Davis | Ferrari 250 TR Scaglietti Spyder 58 | Wayne Burnett |
| 46th | 77 | Otto Klein / John D. Johnson | Maserati 250S Chevrolet | O. J. Klein, Jr. |
| 47th | 37 | Dave Clark | Ford Cortina Lotus | Team Lotus |
| 48th | 14 | Ed Fuchs / Ray Cuomo | Bobsy Mk.2 | Ed Fuchs |
| 49th | 91 | Jack Baker | Black Jack Ford Jaguar | Jack C. Baker |
| 50th | 6 | Alex Ratelle / Frank Phillip | Elva Mk VI | Alex Ratelle |
| 51st | 41 | David Evans | Lotus Eleven | David A. Evans |
| 52nd | 71 | O. M. MacLeran | Elva Mk VII | O. M. MacLeran |
| 53rd | 36 | David Hobbs / Chris Craft | Ford Cortina Lotus | Team Lotus |
| 54th | 35 | Roger Donovan | Elva Mk VII | Paul S. Cobb |
| 55th | 3 | George Dickinson / Sheldon Brown | Porsche RS | George W. Dickinson |
| 56th | 4 | Art Riley | Volvo P1800 | Art Riley |
| 57th | 38 | Jack Stone / Ted Rand | Elva Mk V | Jack Stone |
| 58th | 42 | Robert Shufelt / Jack Brady | Lotus Eleven | Robert Shufelt |
| 59th | 5 | Chuck Stoddard | Alfa Romeo Giulia TZ | Chuck Stoddard |
| 60th | 11 | Robert Stelloh / Bob Lyon | Ferrari 250 GT SWB Berlinetta | Robert R. Stelloh |
| 61st | 63 | Stan Kozlowski / Don Kirby | Ol'Yaller Mk VII Chevrolet | Don Kirby |
| 62nd | 51 | Walt Gray / Jerry Dunbar | Allard Gray Special | Walter S. Gray |