| No |
Pilote |
Team |
Voiture |
| 1 | Jerry Titus/Ronnie Bucknum | Shelby Racing Corporation | Ford Mustang |
| 2 | Allan Moffat/Horst Kwech/George Follmer | Shelby Racing Corporation | Ford Mustang |
| 3 | Jim McDaniel/Glen Sulliva | HRH | Porsche 911R |
| 4 | John Moore/Jim Murphy | HRH | Chevrolet Camaro |
| 5 | Bud Sherk/Billy Diehl | Bud Sherk | Dodge Dart |
| 6 | Mark Donohue/Bob Johnson/Craig Fisher | Penske-Hilton Racing | Chevrolet Camaro |
| 7 | Billy Hagan/John McVeigh/Frans Gillebard | Billy Hagan | Mercury Cougar |
| 8 | Jacky Ickx/Brian Redman | John Wyer Automotive | Ford GT40 |
| 9 | Paul Hawkins/David Hobbs | John Wyer Automotive | Ford GT40 |
| 10 | Tony Lanfranchi/Mark Konig | Nomad | Nomad Mk.1 Ford |
| 11 | Digby Martland/Brian Classick | Chevron Cars | Chevron B6 BMW |
| 12 | Paul Vestey/Roy Pike/Paul Ridgway | Paul Vestey | Ferrari 250LM |
| 13 | Bruce McLaren/Jim Hall | Smokey Yunick | Chevrolet Camaro |
| 14 | Frank Everett/Bruce Jennings/Bob Bailey | Bob Holbert | Porsche 911S |
| 15 | Bob Grossman/Bob Dini | Randy's Auto Body | Ford Mustang |
| 17 | Arthur Mollin/Nick Cone | Arthur Mollin | TVR Mk IV |
| 18 | Edward Nelson/Mike Hailwood | E.S.Nelson | Ford GT40 |
| 19 | E.Dale Keenan/Daniel J.Torpy/James Sutter | D-K Racing | Chevrolet Corvette |
| 20 | Udo Schütz/Nino Vaccarella | Autodelta SpA | Alfa Romeo T33/2 |
| 22 | Mario Casoni/Giampiero Biscaldi/Teodoro Zeccoli | Autodelta SpA | Alfa Romeo T33/2 |
| 23 | Mario Andretti/Lucien Bianchi | Autodelta SpA | Alfa Romeo T33/2 |
| 24 | Leo Cella/Teodoro Zeccoli/Giampiero Biscaldi | Autodelta SpA | Alfa Romeo GTA |
| 25 | Enrico Pinto/Spartaco Dini | Autodelta SpA | Alfa Romeo GTA |
| 26 | Claudio Maglioli/Ove Andersson/Giancarlo Baghetti | Algar Enterprises | Lancia Fulvia Zagato |
| 27 | Carlo Facetti/Giancarlo Baghetti/Ove Andersson | Algar Enterprises | Lancia Fulvia HF |
| 28 | Edward Ross/H. Craige Pelouze | Converti Corvette Racing Associates | Chevrolet Corvette |
| 29 | Peter Revson/Don Yenko | Sunray DX Oil | Chevrolet Corvette |
| 30 | Jerry Thompson/Tony DeLorenzo | Sunray DX Oil | Chevrolet Corvette |
| 31 | Jerry Grant/Dave Morgan | Sunray DX Oil | Chevrolet Corvette |
| 32 | Jack Ryan/Pete Harrison | Jack Ryan | Porsche 911 |
| 34 | John Gunn/Guillermo Ortega/Fausto Merello | Raceco of Miami | Ferrari 250LM |
| 35 | George Waltman | Aztec Racing | Morgan Plus 4 |
| 36 | Wilbur Pickett/Bill Bean/Bill Bencker | Wilbur Pickett | Porsche 911 |
| 37 | William Wonder/Ray Cuomo | William Wonder | Ford GT40 |
| 41 | James Rushin/Thomas D. Harris/Chris Waldron | Thomas D. Harris | MG B |
| 42 | Rajah Rodgers/Richard Robson/Bill Buchman | Richard Robson | Jaguar XK-E |
| 43 | Carl Schwenker/Ara Dube/Dana Kelder | Cannon Auto | Triumph TR4A |
| 44 | Dick Guldstrand/Ed Leslie/Scooter Patrick | American International Racing | Chevrolet Corvette |
| 45 | Scooter Patrick/Dave Jordan/Herb Caplan | American International Racing | Chevrolet Corvette |
| 46 | Steven Payne-Herbert/Grant Miller/Roger Walton | Grant Miller | Porsche 356B Carrera 2 |
| 47 | Milo Vega/John Witt/John Cameron | John Cameron | Triumph TR4A |
| 48 | Doyle Poole/Bruce Morehead | Doyle Poole | Triumph TR4A |
| 49 | Ike A. Maxwell Jr/William J. Martin | Ike A. Maxwell Jr | Volvo 122S |
| 51 | Jo Schlesser/Joe Buzzetta | Porsche System Engineering | Porsche 907 LH |
| 52 | Jo Siffert/Hans Herrmann | Porsche System Engineering | Porsche 907 LH |
| 53 | Gerhard Mitter/Rolf Stommelen/Hans Herrmann | Porsche System Engineering | Porsche 907 LH |
| 54 | Vic Elford/Jochen Neerspasch | Porsche System Engineering | Porsche 907 LH |
| 55 | Rico Steinemann/Dieter Spoerry | Squadra Tartaruga | Porsche 907 LH |
| 56 | Jim Netterstrom/John Kelly/John Sabel | John Kelly | Porsche 911 |
| 57 | Richard Cline/Michael Pickering | Richard P- Cline | Triumph GT6 |
| 58 | Fred Andrews Jr/Richard G. Kondracki | Richard Cline | Triumph Spitfire |
| 59 | Peter Gregg/Sten Axelsson | Brumos Porsche | Porsche 911 |
| 61 | Jean-Pierre Hanrioud/Sylvain Garant | Jean-Pierre Hanrioud | Porsche 911S |
| 64 | Del Russo Taylor/Bob Pratt/Bruce Myers | Bruce Myers | Alfa Romeo GTA |
| 65 | George Wintersteen/Malcolm Starr | Malcolm Starr | Ford Mustang |
| 67 | Hugh Kleinpeter/Ray Mummery/Bruce Hollander | Bruce Hollander | Shelby GT350 |
| 68 | Bill Boye/Billy Yuma | William Boye | Chevrolet Camaro |
| 71 | Joie Chitwood/Buzz Barton | Chitwood Racing | Chevrolet Camaro |
| 72 | Paul Richards/Tony Adamowicz/Marvin Davidson | Marvin Davidson | Porsche 911T |
| 73 | Fred Opert/Joe Grimaldi | Fred Opert Racing Team | Porsche 911 |
| 76T | Ray Heppenstall/Ed Lowther | Howmet Corporation | Howmet TX Continental |
| 77 | Robert Stoddard/George Drolsom/Lewis Williams, Jr. | Lewis Wiliams, Jr | Porsche 911 |
| 78 | Sam Posey/Jim Kauffman | | Ford Mustang |
| 80 | Pedro Rodriguez/Charlie Kolb | North American Racing Team | Ferrari Dino 206S |
| 81 | David Piper/Masten Gregory | North American Racing Team | Ferrari 250LM |
| 96 | John Tremblay/Billy Dingman/Vince Gimondo | Vince Gimondo | Chevrolet Corvette |
24 Heures de Daytona 1968