| 1 | 49 | 1. P3.0 | Porsche System Engineering | Jo Siffert · Hans Herrmann | Porsche 907 2.2 | — | 227 | WSPR historical record |
| 2 | 51 | 2. P3.0 | Porsche System Engineering | Vic Elford · Jochen Neerspasch | Porsche 907 2.2 | — | 226 | WSPR historical record |
| 3 | 15 | 1. TA5.0 | Penske-Hilton Racing | Mark Donohue · Craig Fisher | Chevrolet Camaro | — | 221 | WSPR historical record |
| 4 | 16 | 2. TA5.0 | Penske-Hilton Racing | Craig Fisher · Joe Welch · Bob Johnson | Chevrolet Camaro | — | 217 | WSPR historical record |
| 5 | 31 | 3. TA5.0 | Shelby Racing | Jerry Titus · Ronnie Bucknum | Ford Mustang | — | 217 | WSPR historical record |
| 6 | 3 | 1. GT+5.0 | Sunray DX Oil Company | Hap Sharp · Dave Morgan · DNS - Joseph Ausburn · DNS - Dave Dooley | Chevrolet Corvette | — | 208 | WSPR historical record |
| 7 | 59 | 1. GT2.0 | Don Burns VW | Robert Kirby · Alan Johnson | Porsche 911S | — | 208 | WSPR historical record |
| 8 | 60 | 2. GT2.0 | Gregg Loomis | Pete Harrison · Gregg Loomis · Jack Ryan | Porsche 911S | — | 204 | WSPR historical record |
| 9 | 61 | 3. GT2.0 | Jacques Duval | Jacques Duval · Horst Kroll | Porsche 911S | — | 203 | WSPR historical record |
| 10 | 44 | 3. P3.0 | British Motor Co. | Paddy Hopkirk · Andrew Hedges | MGC | — | 195 | WSPR historical record |
| 11 | 33 | 4. TA5.0 | John McComb | John McComb · Paul Richards · DNS - Bob Tullius · DNS - Dave Dooley | Ford Mustang | — | 195 | WSPR historical record |
| 12 | 24 | 5. TA5.0 | Javelin Racing Team | Peter Revson · Skip Scott · DNS - John Martin | AMC Javelin | — | 193 | WSPR historical record |
| 13 | 62 | 4. GT2.0 | Jean-Pierre Hanrioud | Jean-Pierre Hanrioud · Sylvain Garant | Porsche 911S | — | 190 | WSPR historical record |
| 14 | 72 | 1. P2.0 | HF Squadra | Raffaele Pinto · Luigi Taramazzo · Claudio Maglioli | Lancia Fulvia HF | — | 187 | WSPR historical record |
| 15 | 74 | 1. S1.6 | Donald Healey Motor Co. | Gerald Truitt · Randy Canfield | MG Midget | — | 185 | WSPR historical record |
| 16 | 30 | 1. S5.0 | Edward Nelson Racing | David Piper · Edward Nelson | Ford GT40 | — | 184 | WSPR historical record |
| 17 | 38 | 6. TA5.0 | Gagnon Spring Inc. | François Favreau · Marius Amyot · Andre Samson | Ford Mustang | — | 184 | WSPR historical record |
| 18 | 66 | 5. GT2.0 | British Motor Co. | Gary Rodriguez · Richard McDaniel · Bill Brack | MGB | — | 183 | WSPR historical record |
| 19 | 80 | 2. GT+5.0 | William H. Laughlin | Daniel J. Torpy · E. Dale Keenan | Chevrolet Corvette | — | 171 | WSPR historical record |
| 20 | 58 | 2. P2.0 | Squadra Tartaruga | Rico Steinemann · Dieter Spoerry | Porsche 910 | — | 168 | WSPR historical record |
| 21 | 19 | 7. TA5.0 | HRH Corporation | Jim Murphy · John Moore | Chevrolet Camaro | — | 168 | WSPR historical record |
| 22 | 52 | 6. GT2.0 | Richard B. Cline | Richard Cline · Michael Pickering | Triumph GT6 | — | 168 | WSPR historical record |
| 23 | 20 | 8. TA5.0 | Padrick Chevrolet | David McClain · Dick Boo | Chevrolet Camaro | — | 164 | WSPR historical record |
| 24 | 84 | GT5.0 | Coquina Motors | Rajah Rodgers · Richard Robson · DNS - Bill Buchman | Jaguar E-type | — | 161 | WSPR historical record |
| 25 | 18 | 9. TA5.0 | Jim Corwin | Jim Corwin · Fred Pipin | Chevrolet Camaro | — | 161 | WSPR historical record |
| 26 | 23 | 0. TA5.0 | Squadra Course Verona | Bruce Jennings · Charlie Rainville · DNS - Paul Pettey | Mercury Cougar | — | 159 | WSPR historical record |
| 27 | 7 | 3. GT+5.0 | Slaton Chevrolet | Or Costanzo · William Harris · Dave Heinz | Chevrolet Corvette | — | 158 | WSPR historical record |
| 28 | 17 | 1. TA5.0 | Chitwood Racing | Joie Chitwood · Dave Horchler · Richard Hoffman | Chevrolet Camaro | — | 158 | WSPR historical record |
| 29 | 29 | 2. S5.0 | John Wyer Automotive Engine | Paul Hawkins · David Hobbs | Ford GT40 | — | 157 | WSPR historical record |
| 30 | 64 | S2.0 | B & B Motors | Bob Bailey · Jim Locke | Porsche 906 | — | 157 | WSPR historical record |
| 31 | 67 | 7. GT2.0 | Waldron Motors | Jim Gammon · Chris Waldron · Ben Scott | MGB | — | 148 | WSPR historical record |
| 32 | 26 | TA5.0 | G & H Engineering | Janet Guthrie · Liane Engeman | AMC Javelin | — | 144 | WSPR historical record |
| 33 | 95 | 3. P2.0 | Arthur Cohn | Arthur Cohn · Don Pickett · Tony Lilly | Beach Prototype Volkswagen | — | 140 | WSPR historical record |
| 34 | 85 | P3.0 | Best Sports Cars | Donna Mae Mims · Michael Summers | Yenko Stinger | — | 130 | WSPR historical record |
| 35 | 73 | P2.0 | Donald Healey Motor Co. | Clive Baker · Mike Garton | Austin-Healey Sprite Le Man | — | 125 | WSPR historical record |
| 36 | 27 | GT5.0 | Port of Entry Motors | Hugh Kleinpeter · Bruce Hollander · Ray Mummery | Shelby GT350 | — | 98 | WSPR historical record |
| 37 | 14 | TA5.0 | Mar Shipping | Norberto Mastandrea · Ralph Noseda | Chevrolet Camaro | — | 132 | WSPR historical record |
| 38 | 76 | P3.0 | Howmet Corporation | Dick Thompson · Ed Lowther · Ray Heppenstall | Howmet TX Continental | — | 125 | WSPR historical record |
| 39 | 9 | S5.0 | American International Raci | Scooter Patrick · Dave Jordan | Lola T70 Mk.3 Chev | — | 103 | WSPR historical record |
| 40 | 25 | TA5.0 | Javelin Racing Team | George Follmer · Jerry Grant · Skip Scott · DNS - John Martin | AMC Javelin | — | 90 | WSPR historical record |
| 41 | 68 | S1.6 | Dyno Racing | Earl Sylvia · Dave Domizi · Robert Fogle | Lotus Europa | — | 81 | WSPR historical record |
| 42 | 96 | GT2.0 | Richard P. Cline | Richard G. Kondracki · Fred Andrews, Jr. | Triumph Spitfire | — | 72 | WSPR historical record |
| 43 | 71 | P2.0 | HF Squadra | Claudio Maglioli · Bert Everett · Ove Andersson | Lancia Fulvia HF Zagat | — | 67 | WSPR historical record |
| 44 | 32 | TA5.0 | Shelby Racing | Allan Moffat · Horst Kwech · DNS - George Follmer | Ford Mustang | — | 63 | WSPR historical record |
| 45 | 11 | S5.0 | Mike De Udy | Mike De Udy · Hugh Dibley | Lola T70 Mk.3 Chev | — | 61 | WSPR historical record |
| 46 | 86 | GT3.0 | John Cameron | John Witt · Milo Vega · John Cameron | Triumph TR4A | — | 59 | WSPR historical record |
| 47 | 21 | TA5.0 | Bill Boye Racing | Billy Yuma · Bill Boye | Chevrolet Camaro | — | 55 | WSPR historical record |
| 48 | 47 | P3.0 | Leyland Motor Corporation | Jim Dittemore · Bob Tullius · DNS - Mike Rothschild | Triumph TR250 K | — | 49 | WSPR historical record |
| 49 | 4 | GT+5.0 | Sunray DX Oil Company | Jerry Thompson · Tony DeLorenzo · DNS - Dave Dooley | Chevrolet Corvette | — | 48 | WSPR historical record |
| 50 | 48 | P3.0 | Porsche System Engineering | Gerhard Mitter · Rolf Stommelen | Porsche 907 2.2 | — | 46 | WSPR historical record |
| 51 | 63 | GT2.0 | Sepp Greger | Sepp Greger · Malte Huth | Porsche 911S | — | 46 | WSPR historical record |
| 52 | 81 | TA5.0 | Samadco Ltd. / Smokey Yunic | Al Unser · Lloyd Ruby | Chevrolet Camaro | — | 43 | WSPR historical record |
| 53 | 2 | GT+5.0 | Sunray DX Oil Company | Pedro Rodriguez · Don Yenko | Chevrolet Corvette | — | 43 | WSPR historical record |
| 54 | 37 | TA5.0 | Starr Racing | George Wintersteen · Malcolm Starr | Ford Mustang | — | 43 | WSPR historical record |
| 55 | 12 | TA5.0 | Wilton T. Jowett | Wilton T. Jowett, Jr. · Claude Cardwell | Chevrolet Camaro | — | 40 | WSPR historical record |
| 56 | 10 | S5.0 | Ecurie Bonnier | Jo Bonnier · Sten Axelsson | Lola T70 Mk.3 Chev | — | 40 | WSPR historical record |
| 57 | 42 | P3.0 | Societé Automobiles Alpine | Mauro Bianchi · Henri Grandsire | Alpine A211 Renault | — | 39 | WSPR historical record |
| 58 | 28 | S5.0 | John Wyer Automotive Engine | Jacky Ickx · Brian Redman | Ford GT40 | — | 36 | WSPR historical record |
| 59 | 55 | P2.0 | Raceco | Armando Capriles · Alfredo Atencio | Porsche 906LE | — | 35 | WSPR historical record |
| 60 | 39 | S5.0 | Raceco of Miami | Fausto Merello · Guillermo Ortega · John Gunn | Ferrari 250LM | — | 33 | WSPR historical record |
| 61 | 36 | TA5.0 | Dos Caballos Racing Team | Ruben Novoa · Fred van Beuren, Jr. - DND · DNS - Raul Perez Gama | Ford Mustang | — | 25 | WSPR historical record |
| 62 | 56 | P2.0 | Valvoline Racing Team | Karl Foitek · Rudi Lins | Porsche 910 | — | 16 | WSPR historical record |
| 63 | 34 | TA5.0 | Mathews Racing Team | Sam Posey · Milt Minter | Ford Mustang | — | 16 | WSPR historical record |
| 64 | 8 | S5.0 | American International Raci | Lothar Motschenbacher · Ed Leslie · Dick Guldstrand | Lola T70 Mk.3 Chev | — | 12 | WSPR historical record |
| 65 | 35 | TA5.0 | Randy's Auto Body | Bob Grossman · Bob Dini | Ford Mustang | — | 11 | WSPR historical record |
| 66 | 22 | TA5.0 | Billy Hagan | Billy Hagan · John McVeigh · Frans Gillebard | Mercury Cougar | — | 10 | WSPR historical record |
| 67 | 50 | P3.0 | Porsche System Engineering | Ludovico Scarfiotti · Joe Buzzetta · DNS - Jochen Neerspasch | Porsche 907 2.2 | — | 7 | WSPR historical record |
| 68 | 93 | S2.0 | Arthur Mollin Racing | Arthur Mollin · Art Riley · Nick Cone | TVR Grantura 1800S | — | 6 | WSPR historical record |
| did_not_start | 57 | P2.0 | HRH Corporation | Jim McDaniel · Glen Sullivan | Porsche 911R | — | | WSPR historical record |
| did_not_start | 69 | P2.0 | Elsco BMW | Ed Hugus · Chuck Dietrich | Lotus 47 BMW | — | | WSPR historical record |
| did_not_start | 70 | P2.0 | Elsco BMW | Eugene Nearburg · Paul Jett | Lotus 47 BMW | — | | WSPR historical record |
| did_not_start | 90 | GT2.0 | Bill Bencker | Bill Bencker · Wilbur Pickett · Roger Newman | Porsche 911 | — | | WSPR historical record |
| did_not_start | 91 | GT2.0 | Dieter Oest | Dieter Oest · Sam Feinstein · Roger Newman | Porsche 356B Carrera 2 | — | | WSPR historical record |
| entry_only | - | P3.0 | Howmet Corporation | Ray Heppenstall | Howmet TX Continental | — | | WSPR historical record |
| entry_only | - | TA5.0 | Jim Downing | Jim Downing | Ford Mustang | — | | WSPR historical record |
| entry_only | - | P2.0 | North American Racing Team | xxx | Ferrari Dino 206S | — | | WSPR historical record |
| entry_only | - | S1.6 | William C. Morton | William C. Morton | Lotus Elan | — | | WSPR historical record |
| entry_only | - | GT2.0 | Bob Holbert | Bert Everett | Porsche 911S | — | | WSPR historical record |
| entry_only | - | GT+5.0 | Bud Gates | Bud Gates · Bill Fuller | Chevrolet Corvette | — | | WSPR historical record |
| entry_only | - | GT+5.0 | American International Raci | Herb Caplan | Chevrolet Corvette | — | | WSPR historical record |
| entry_only | - | P3.0 | Charles Vögele | Charles Vögele · Silvio Moser | Porsche 910 | — | | WSPR historical record |
| entry_only | - | S5.0 | William Wonder | William Wonder · Ray Cuomo | Ford GT40 | — | | WSPR historical record |
| entry_only | - | P3.0 | Edward Alvarez | Edward Alvarez · Ed Wilson | Ferrari Dino 206S | — | | WSPR historical record |
| entry_only | 45 | S5.0 | George Wooley | Jacques Couture · Max Merrierre | Ferrari 250LM | — | | WSPR historical record |
| entry_only | 87 | P2.0 | Fred J. Baker | Fred Baker | Porsche 906 | — | | WSPR historical record |
| entry_only | 88 | P2.0 | Werner Frank | Werner Frank · Ralph Trieschmann | Porsche 906 | — | | WSPR historical record |
