| 8.5.1966 | Velodromloppet [GT2.0] | 4 | Elan | Arno Gyltman | Skaraborgs SVK | 6th |
| 8.5.1966 | Velodromloppet [GT2.0] | 6 | Elan S2 | Jan Johnson | SMK Motala | DNF |
| 8.5.1966 | Velodromloppet [GT2.0] | 11 | Elan | Lennart Strandberg | Borlänge MK | 4th |
| 8.5.1966 | Velodromloppet [GT2.0] | 15 | Elan S2 | Per Brandström | KAK/UV | 3rd |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 53 | Seven Super | Dave Vital | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 54 | | Wes Dawn | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 56 | | Cliff Ceridono | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 57 | Seven Super | Jon Milledge | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 58 | | Speck Spott | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 59 | | Mayo Young | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 73 | Seven Super | Milt Minter | | DNA |
| 8.5.1966 | SCCA Regional Laguna Seca [AP+BP+CP+DP] | 85 | Elite | Al Brizard | | DNA |
| 14.5.1966 | Silverstone International | 1 | 23 | Vic Wilson | Vegantune Engineering | DNF |
| 14.5.1966 | Silverstone International | 6 | 19 | John Scott-Davies | Aintree Circuit Racing Team | 13th |
| 14.5.1966 | Silverstone International | 17 | 30 | Brian Muir | Race Proved by Willment | 14th |
| 14.5.1966 | Silverstone International | 18 | 30 | John Nicholson | Farnborough Racing Enterprises | DNS |
| 14.5.1966 | Silverstone International | 19 | 30 Series 2 | John Dean | J. W. Dean | DNF |
| 14.5.1966 | Silverstone International | 20 | 30/40 | John Berry | Thomas Motors | DNF |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 3 | Seven Super | W. M. Hayman | Mike Hayman | DNA |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 16 | Seven | Richard Barnes | Richard Barnes | DNA |
| 15.5.1966 | SCCA National Cumberland [GSR+HSR] | 17 | Eleven | Bob Thomas | Robert Thomas | DNA |
| 15.5.1966 | SCCA National Cumberland [GSR+HSR] | 48 | | Kenneth Gee | Kenneth Gee | DNA |
| 15.5.1966 | SCCA National Cumberland [GSR+HSR] | 64 | | George Taylor | George Taylor | DNA |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 72 | Seven Super | Sam Feinstein | Samuel Feinstein | DNA |
| 15.5.1966 | SCCA National Cumberland [GSR+HSR] | 72 | | Erika Rhone | Erika Rhone | DNA |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 73 | Seven Super | Willis Weldin | Willis Weldin | DNA |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 95 | Seven Super | Bob Hopper | David Stewart | DNA |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 99 | Elan | Bob Leitzinger | Lotus Cars of Pittsburgh | 2nd |
| 15.5.1966 | GP Paris [SP] | | 23 B | Mike Knight | | 5th |
| 15.5.1966 | Junioren Trophy Zandvoort | | Elan S2 | Ernst Hagemann | | ?th |
| 15.5.1966 | Mittelrhein Nürburgring | | | Joseph Rozelle | | ?th |
| 15.5.1966 | GP Paris [GT] | | Elan | "Alain Dex" | | 1st |
| 15.5.1966 | GP Paris [SP] | | 23 B | Vincent Palmaro | | 6th |
| 16.5.1966 | Player's Pacific Westwood | 1 | 23 B | George Chapman | | 7th |
| 16.5.1966 | Player's Pacific Westwood | 3 | 23 | Pierre Phillipe | | DNF |
| 16.5.1966 | Player's Pacific Westwood | 4 | 23 B | Harold Brown | | 4th |
| 16.5.1966 | Player's Pacific Westwood | 14 | 23 B | Dave Ridenour | | 10th |
| 16.5.1966 | Player's Pacific Westwood | 23 | 23 | Tony Boothby | | DNF |
| 16.5.1966 | Player's Pacific Westwood | 26 | 23 | John Stuhldreier | | 12th |
| 16.5.1966 | Player's Pacific Westwood | 34 | 23 | Max Beimler | | DNF |
| 16.5.1966 | Player's Pacific Westwood | 69 | 23 B | Eric Anderson | | 9th |
| 16.5.1966 | Player's Pacific Westwood | 139 | Mark VI | Loren St. Lawrence | | 8th |
| 16.5.1966 | Player's Pacific Westwood | 411 | 23 | Dick Schmidt | | 16th |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 3 | Elan 26 Racing | Rolf Örell | | 6th |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 4 | 23 | Sven Carrhage | | DNA |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 5 | 23 B | Göte-Ingvar Johansson | | 4th |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 6 | Elan | Kaj Bornebusch | | 7th |
| 22.5.1966 | 1000 km Spa | 14 | 23 | Weber / Cabral | | DNA |
| 22.5.1966 | USRRC Bridgehampton | 23 | 23 B | Doug Revson | | 18th |
| 22.5.1966 | USRRC Bridgehampton | 44 | 19 | Jerry Hansen | | DNF |
| 22.5.1966 | USRRC Bridgehampton | 46 | 23 | John Morton | | 8th |
| 22.5.1966 | 1000 km Spa | 60 | Elan | Eichhorn / Steinemann | Squadra Foitek | DNF |
| 22.5.1966 | USRRC Bridgehampton | 60 | Elan | Bob Colombosian | | 20th |
| 22.5.1966 | 1000 km Spa | 61 | Elan | Svensson / Lindgren | | DNA |
| 22.5.1966 | 1000 km Spa | 62 | Elan 26 Racing | Wahlström / Brandström | Elan Sweden | 14th |
| 22.5.1966 | SM Monza | | Elan 26 Racing | Karl Foitek | | 2nd |
| 22.5.1966 | Stockholmsloppet [SP2.0] | | Seven Super | Jan Agrén | | 5th |
| 22.5.1966 | SCCA Regional Watkins Glen [SR] | | 23 B | Phil Seitz | | 1st |
| 22.5.1966 | SM Monza | | 23 | Bruno Frey | | 3rd |
| 22.5.1966 | 1000 km Spa | | Elan Racing | "Baki" / Peter | OASC | DNA |
| 22.5.1966 | SM Monza | | 23 | Xavier Perrot | | 4th |
| 22.5.1966 | SM Monza | | Elan Racing | Hans Tschiemer | | 6th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 1 | Seven | Don Molyneux | Don Molyneux | DNF |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 2 | Eleven | Jack Walsh | J. D. Walsh | 6th |
| 28.5.1966 | AMOC Silverstone [S1.6] | 6 | Seven | K. P. Maguire | K. P. Maguire | DNA |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 8 | Seven | Roger Hughes | D. J. Brough | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 20 | Elite | Andrew Hill | A. Hill | 11th |
| 28.5.1966 | AMOC Silverstone [S1.6] | 21 | Elan | Peter Beaver | P. D. Beaver | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 22 | Elan | Brian Sherwood | B. J. Sherwood | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 22 | Elan 26 Racing S2 | John Miles | Race Proved by Willment | 1st |
| 28.5.1966 | SCCA National Courtland | 22 | 23 | | | raced |
| 28.5.1966 | MCMRC Oulton Park [GT] | 23 | Elan | Bob Smith | Bob Smith | 5th |
| 28.5.1966 | MCMRC Oulton Park [GT] | 24 | Elan | Arnold Milburn | A. Milburn | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 26 | Elan | Glyn Jones | A. Milburn | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 27 | Elan | Peter Creasey | Peter Creasley | 4th |
| 28.5.1966 | MCMRC Oulton Park [GT] | 28 | Elan | Arthur Moore | A. G. Moore | DNA |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 28 | Elan | Arthur Moore | A. G. Moore | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 35 | Seven | Joe Beavis | H. J. Beavis | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 37 | | Paul Harper | P. W. Harper | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 44 | | Len Hill | L. Hill | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 45 | Seven | R. Mash | R. Marsh | DNA |
| 28.5.1966 | MCMRC Oulton Park [Formula Libre] | 46 | 20 | Albert McMillan | A. McMillan | DNF |
| 28.5.1966 | AMOC Silverstone [S1.6] | 48 | 23 B | Brian Field | B. Field | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 49 | Elan | Alan Harvey | A. Harvey | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 50 | 23 B | Peter Dickinson | P. R. Dickinson | DNA |
| 28.5.1966 | MCMRC Oulton Park [Formula Libre] | 52 | Seven | John Enis | John Enis | DNA |
| 28.5.1966 | MCMRC Oulton Park [Formula Libre] | 55 | Seven Super | Clive Stanton | J. C. Stanton | 10th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 62 | 19 | John Scott-Davies | John Scott-Davies | 1st |
| 28.5.1966 | MCMRC Oulton Park [Formula Libre] | 62 | 19 | John Scott-Davies | John Scott-Davies | 2nd |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 150 | Seven | Derek Rex | Derek Rex | 7th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 152 | Seven Super | David Aukland | David Aukland | DNS |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 153 | Seven | Peter Gregson | William Peter Gregson | 8th |
| 28.5.1966 | SCCA National Courtland | | 23 | | | raced |
| 28.5.1966 | SA SCC Kyalami SAF | | 23 B | Keith Berrington-Smith | | 1st |
| 29.5.1966 | Grovewood Trophy Mallory Park | 8 | 30 | Brian Muir | "Race Proved by Willment" | 9th |
| 29.5.1966 | Grovewood Trophy Mallory Park | 9 | 30 Series 2 | John Dean | John Dean Racing | DNA |
| 29.5.1966 | Grovewood Trophy Mallory Park | 11 | 30/40 | John Berry | Thomas Motors (Blackpool) Ltd. | 6th |
| 29.5.1966 | Grovewood Trophy Mallory Park | 19 | 19 | John Scott-Davies | Aintree Circuit Racing Team | 10th |
| 29.5.1966 | Labatt 50 Mont-Tremblant | 42 | Elan | Max Nerriere | Max Nerriere | DNF |
| 29.5.1966 | Labatt 50 Mont-Tremblant | 172 | 23 B | Phil Seitz | Phil Seitz | 15th |