| 1 | 21 | 1. S5.0 | SpA Ferrari SEFAC | Ignazio Giunti · Nino Vaccarella · Mario Andretti | Ferrari 512S | — | 248 | WSPR historical record |
| 2 | 48 | 1. P3.0 | Solar Productions | Steve McQueen · Peter Revson | Porsche 908/02 | — | 248 | WSPR historical record |
| 3 | 33 | 2. P3.0 | Autodelta SpA | Toine Hezemans · Masten Gregory | Alfa Romeo T33/3 | — | 247 | WSPR historical record |
| 4 | 15 | 2. S5.0 | John Wyer Automotive | Pedro Rodriguez · Leo Kinnunen · Jo Siffert | Porsche 917K | — | 244 | WSPR historical record |
| 5 | 34 | 3. P3.0 | Equipe Matra Simca | Henri Pescarolo · Johnny Servoz-Gavin | Matra-Simca MS650 | — | 242 | WSPR historical record |
| 6 | 22 | 4. P3.0 | North American Racing Team | Mike Parkes · Chuck Parsons | Ferrari 312P Coupé | — | 240 | WSPR historical record |
| 7 | 46 | 5. P3.0 | Martini International | Gerhard Koch · Gérard Larrousse · Richard Attwood · DNS - Hans-Dieter Dechent | Porsche 908/02 | — | 236 | WSPR historical record |
| 8 | 31 | 6. P3.0 | Autodelta SpA | Piers Courage · Andrea de Adamich | Alfa Romeo T33/3 | — | 231 | WSPR historical record |
| 9 | 32 | 7. P3.0 | Autodelta SpA | Rolf Stommelen · Nanni Galli | Alfa Romeo T33/3 | — | 230 | WSPR historical record |
| 10 | 1 | 1. GT+5.0 | Troy Promotions Inc. | Tony DeLorenzo · Dick Lang | Chevrolet Corvette | — | 219 | WSPR historical record |
| 11 | 3 | 2. GT+5.0 | Doug Bergen Racing | Bob Johnson · Robert R. Johnson · Jim Greendyke | Chevrolet Corvette | — | 214 | WSPR historical record |
| 12 | 35 | 8. P3.0 | Equipe Matra Simca | Dan Gurney · François Cevert | Matra-Simca MS650 | — | 213 | WSPR historical record |
| 13 | 53 | 1. GT2.0 | Brumos Porsche Audi | Peter Gregg · Pete Harrison | Porsche 911T | — | 205 | WSPR historical record |
| 14 | 40 | 1. T5.0 | Takondo Racing | Vince Gimondo · Chuck Dietrich | Chevrolet Camaro | — | 203 | WSPR historical record |
| 15 | 52 | 2. GT2.0 | Jacques Duval | Jacques Duval · Bob Bailey · George Nicholas | Porsche 911T | — | 201 | WSPR historical record |
| 16 | 39 | 2. T5.0 | Robert S. Mitchell | Charlie Kemp · Bob Mitchell | Chevrolet Camaro | — | 191 | WSPR historical record |
| 17 | 9 | 3. GT+5.0 | Marlbank Racing Team | Bob Grossman · Don Yenko | Chevrolet Camaro | — | 189 | WSPR historical record |
| 18 | 43 | 3. T5.0 | Bruce Behrens Racing | John Tremblay · Bill McDill | Chevrolet Camaro | — | 187 | WSPR historical record |
| 19 | 73 | 1. P2.0 | Ring Free Oil Team | Janet Guthrie · Rosemary Smith · Judy Kondratiff · DNS - Sharlene Seavey | Austin-Healey Sprite | — | 187 | WSPR historical record |
| 20 | 2 | 4. GT+5.0 | Troy Promotions Inc. | Jerry Thompson · John Mahler | Chevrolet Corvette | — | 187 | WSPR historical record |
| 21 | 91 | 4. T5.0 | Flem-Cor Enterprises | Jim Corwin · Donna Mae Mims | Chevrolet Camaro | — | 184 | WSPR historical record |
| 22 | 92 | 5. T5.0 | Preston Hood Chevrolet | Don Gwynne, Jr. · John Elliott | Chevrolet Camaro | — | 182 | WSPR historical record |
| 23 | 50 | 1. S3.0 | Nationwide Food Brokers | Mike Rahal · Hugh Wise · Werner Frank | Porsche 906 | — | 181 | WSPR historical record |
| 24 | 37 | 6. T5.0 | Collins-Wilson Racing | Vincent P. Collins · Larry Wilson | Ford Mustang | — | 175 | WSPR historical record |
| 25 | 57 | 3. GT2.0 | Waldron Motors | John Belperche · Jim Gammon · Ray Mummery | MGB | — | 175 | WSPR historical record |
| 26 | 58 | 4. GT2.0 | Waldron Motors | Ben Scott · Dave Houser · Lowell Lanier | MGB | — | 169 | WSPR historical record |
| 27 | 18 | 7. T5.0 | Paul Pettey | Paul Pettey · Roy Hallquist | Ford Mustang | — | 162 | WSPR historical record |
| 28 | 80 | T2.0 | Texas Speed Museum | Rod Kennedy · Mike Tillson · Robert Samm | Lancia Fulvia HF | — | 157 | WSPR historical record |
| 29 | 54 | 2. P2.0 | Automobiles of Italy | Anatoly Arutunoff · Bill Pryor | Abarth 2000SP | — | 166 | WSPR historical record |
| 30 | 51 | 2. S3.0 | Porsche Audi | Stephen Behr · Merv Rosen | Porsche 906 | — | 158 | WSPR historical record |
| 31 | 63 | 3. S3.0 | Carlos Fabre | Carlos Fabre · Pepe Aguilar | Chevron B8 BMW | — | 143 | WSPR historical record |
| 32 | 26 | S5.0 | Randy's Auto Body Shop | Bobby Brown · Gregg Young · Robin Ormes | Lola T70 Mk.3B Che | — | 114 | WSPR historical record |
| 33 | 97 | T2.0 | HCAS Inc. | Walter Brown · Joe Marcus · Jim R. Sandman | BMW 2002 | — | 105 | WSPR historical record |
| 34 | 47 | P3.0 | Racing Team AAW | Hans Laine · Gijs van Lennep | Porsche 908/02 | — | 229 | WSPR historical record |
| 35 | 19 | S5.0 | SpA Ferrari SEFAC | Mario Andretti · Arturo Merzario | Ferrari 512S Spyder | — | 227 | WSPR historical record |
| 36 | 14 | S5.0 | John Wyer Automotive | Jo Siffert · Brian Redman · Leo Kinnunen | Porsche 917K | — | 211 | WSPR historical record |
| 37 | 8 | GT+5.0 | Or Costanzo | Dave Heinz · Or Costanzo | Chevrolet Corvette | — | 191 | WSPR historical record |
| 38 | 4 | GT+5.0 | John Greenwood | John Greenwood · Allan Barker | Chevrolet Corvette | — | 159 | WSPR historical record |
| 39 | 20 | S5.0 | SpA Ferrari SEFAC | Jacky Ickx · Peter Schetty | Ferrari 512S Spy | — | 151 | WSPR historical record |
| 40 | 56 | GT2.0 | British Leyland Motors | Jon Woodner · Dan O'Connor | MG Midget | — | 122 | WSPR historical record |
| 41 | 29 | S5.0 | Auto Enterprises | Ray Heppenstall · Francis C. Grant | Ford GT40 | — | 117 | WSPR historical record |
| 42 | 24 | S5.0 | North American Racing Team | Sam Posey · Ronnie Bucknum · Bert Everett | Ferrari 512S Spyder | — | 92 | WSPR historical record |
| 43 | 55 | GT2.0 | British Leyland Motors | Merle Brennan · Logan Blackburn | MGB | — | 84 | WSPR historical record |
| 44 | 82 | T2.0 | General Plastics | Robert Clark · Wayne Marsula | Lancia Fulvia HF | — | 78 | WSPR historical record |
| 45 | 77 | GT2.0 | Bruce Jennings | Bruce Jennings · Bob Tullius | Porsche 911T | — | 78 | WSPR historical record |
| 46 | 69 | GT2.0 | Harry Theodoracopoulos | Paul Spruell · Wilbur Pickett · DNS - Harry Theodoracopulos | Alfa Romeo Giulia Spider | — | 75 | WSPR historical record |
| 47 | 61 | P2.0 | Ring Free Oil Team | Jim Baker · Clive Baker · Paul Richards · Bobby Rinzler | Chevron B16 Ford | — | 70 | WSPR historical record |
| 48 | 16 | S5.0 | Porsche-Audi USA | Vic Elford · Kurt Ahrens, Jr. | Porsche 917K | — | 61 | WSPR historical record |
| 49 | 23 | P3.0 | North American Racing Team | Tony Adamowicz · Luigi Chinetti, Jr. | Ferrari 312P Coupé | — | 56 | WSPR historical record |
| 50 | 67 | P2.0 | Sport Motors | Jim Bandy · Fred Stevenson | Lotus Europa | — | 48 | WSPR historical record |
| 51 | 38 | T5.0 | Dave McClain | Don Kearney · Joie Chitwood · DNS - Dick Boo · DNS - John Floyd · DNS - David McClain | Chevrolet Camaro | — | 47 | WSPR historical record |
| 52 | 41 | T5.0 | Laurel Racing | Larry Bock · Larry Dent | Chevrolet Camaro | — | 40 | WSPR historical record |
| 53 | 62 | P2.0 | Chevron Cars | Brian Robinson · Hugh Kleinpeter | Chevron B16 Ford | — | 38 | WSPR historical record |
| 54 | 74 | GT2.0 | Ralph Meaney | Ralph Meaney · Bill Bean | Porsche 911T | — | 36 | WSPR historical record |
| 55 | 5 | GT+5.0 | William A. Schumacher | Bill Schumacher · Bill Petree | Chevrolet Corvette | — | 34 | WSPR historical record |
| 56 | 17 | S5.0 | Porsche-Audi USA | Hans Herrmann · Rudi Lins | Porsche 917K | — | 28 | WSPR historical record |
| 57 | 87 | T2.0 | Robert Whitaker | Robert Whitaker · Harvey Eckoff · Jack Slottag · DNS - William A. Davidson | Volvo 122S | — | 25 | WSPR historical record |
| 58 | 30 | S5.0 | Trevor Graham | Piers Forrester · Andrew Hedges | Ford GT40 | — | 22 | WSPR historical record |
| 59 | 49 | S3.0 | Sepp Greger | Sepp Greger · Andreas Schmalbach | Porsche 910 | — | 22 | WSPR historical record |
| 60 | 36 | T5.0 | Ray Cuomo Racing | Ray Cuomo · Bernard Gimbel · George Lissberg | Ford Mustang | — | 16 | WSPR historical record |
| 61 | 86 | T2.0 | Sandy's Spares | Ronald D. Polimeni · Robert Theall | Volvo 122S | — | 8 | WSPR historical record |
| 62 | 7 | GT+5.0 | Bruce Morehead Racing | Bruce Morehead · Milo Vega | AMC AMX | — | 8 | WSPR historical record |
| 63 | 60 | GT2.0 | Herrington Motors | Robert Kilpatrick · Don Goodrich | MGB | — | 7 | WSPR historical record |
| 64 | 59 | P2.0 | Waldron Motors | Reggie Smith, Jr. · Dean Donley · Omar Buttari | MG Midget | — | 2 | WSPR historical record |
| 65 | 79 | T2.0 | Del Taylor | Del Russo Taylor · Buzz Dyer · Hank Sheldon | Alfa Romeo 1750 GTV | — | 2 | WSPR historical record |
| 66 | 27 | S5.0 | Grand Bahama Racing Team | Mike De Udy · Mike Hailwood | Lola T70 Mk.3B Che | — | 1 | WSPR historical record |
| 67 | 88 | T2.0 | Simone Fleming | Paul Fleming · Amos Johnson · Bill Bowers | Fiat 124 | — | 47 | WSPR historical record |
| 68 | 45 | P3.0 | Martini International | Richard Attwood · Gérard Larrousse · DNS - Gerhard Koch | Porsche 908/02 | — | 31 | WSPR historical record |
| did_not_start | 12 | T5.0 | BRM Inc. | Dave Roethel · John Bentley | Ford Mustang Boss 302 | — | | WSPR historical record |
| did_not_start | 25 | GT5.0 | Harley E. Cluxton | Harley Cluxton · Wilbur Pickett | Ferrari 365 GTB/4 | — | | WSPR historical record |
| did_not_start | 85 | T2.0 | HCAS Inc. | Bill Cooper · Norm Mosher | Opel Rallye | — | | WSPR historical record |
| source_section_running_in_practice | T | S5.0 | John Wyer Automotive | Jo Siffert · Brian Redman | Porsche 917K | — | | WSPR historical record |
| source_section_running_in_practice | 81T | T2.0 | Texas Speed Museum | Rod Kennedy · Robert Samm · Mike Tillson | Lancia Fulvia HF | — | | WSPR historical record |
| source_section_did_not_practice | 99 | P2.0 | William Harris | William Harris · Robert E. Lewis · Howard J. LeVasseur | Austin-Healey Sprite | — | | WSPR historical record |
| entry_only | 10 | T+5.0 | Jim Hall | Jim Hall · Hap Sharp | Chevrolet Camaro | — | | WSPR historical record |
| entry_only | 11 | T+5.0 | Jim Hall | Ed Leslie · Tom Dutton | Chevrolet Camaro | — | | WSPR historical record |
| entry_only | 26 | P3.0 | North American Racing Team | xxx | Ferrari 312P | — | | WSPR historical record |
| entry_only | 42 | T5.0 | Troy Promotions Inc. | xxx | Chevrolet Camaro | — | | WSPR historical record |
| entry_only | 44 | GT5.0 | Jean Sage | Jean Sage · Claude Haldi | Porsche 911S | — | | WSPR historical record |
| entry_only | 83 | T2.0 | Dieter Oest | Dieter Oest · Barry Batchin | Lancia Fulvia | — | | WSPR historical record |
| entry_only | 89 | GT+5.0 | Cliff Gottlob | Cliff Gottlob · Dave Dooley | Chevrolet Corvette | — | | WSPR historical record |
| entry_only | 90 | S5.0 | Joe Randazzo | Bobby Brown | Lola T70 Mk.3B Chevrolet | — | | WSPR historical record |
| entry_only | 93 | T5.0 | Ed Matthews | Don Sesslar · Ed Matthews | Ford Mustang | — | | WSPR historical record |
