| 10.7.1966 | SCCA Regional Cotati [CSR+DSR+ESR+FSR+GSR] | 51 | TR4 | Lee Slaughter | | DNA |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 95 | TR4 | Ken Fennell | | DNA |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 97 | TR4 | Jack Lopez | | DNA |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 99 | TR4 | Pete Tracey | | DNA |
| 17.7.1966 | GP Mugello | 51 | Spitfire | Fred Gysler | | DNF |
| 17.7.1966 | GP Mugello | 52 | Spitfire | Michel Pilet | | 41st |
| 17.7.1966 | GP Mugello | 63 | Spitfire | Zanarotti / Dona | | DNA |
| 17.7.1966 | GP Mugello | 128 | Spitfire | Hodgson / Pateman | | NC |
| 23.7.1966 | SCCA Regional Connellsville [SR+Production] | 2 | TR4 | Eugene Ferri | | DNA |
| 23.7.1966 | SCCA Regional Connellsville [SR+Production] | 72 | Spitfire | Rosemary Boock | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 6 | TR4 | Harvey Marks | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 8 | TR4 | Leonard Anderson | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 16 | TR4 | Jim Taylor | | DNA |
| 24.7.1966 | 24 h Spa | 20 | 2000 | Boulanger / Duvigneaud | | DNF |
| 24.7.1966 | SCCA National Connellsville [DP] | 30 | TR4 | Bruce Walters | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 44 | TR4 A | Bob Tullius | | DNA |
| 24.7.1966 | SMRC Ingliston [Special GT1.2] | 45 | Spitfire | Tommy Thomson | T. N. Thomson | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 46 | TR4 | John Williams | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 71 | TR4 | Dick Stockton | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 74 | TR4 | Buzz Marcus | | DNA |
| 30.7.1966 | LCCC Oulton Park [GT] | 138 | Spitfire | Peter Cox | Peter Cox | DNF |
| 7.8.1966 | DARM Nürburgring | 147 | Spitfire | Fred Gysler | Ecurie Léman | DNA |
| 13.8.1966 | 750 MC Oulton Park [GT] | 94 | Spitfire | Chris Williams | Chris Williams | DQ |
| 14.8.1966 | SMRC Ingliston [S/Special GT+1.2] | 25 | TR4 | Henry Tuer | H. W. Tuer | DNA |
| 14.8.1966 | SMRC Ingliston [Marque] | 26 | TR2 | Henry Tuer | H. W. Tuer | DNA |
| 14.8.1966 | SMRC Ingliston [Marque] | 62 | Spitfire | E. Elworthy | E. Elworthy | DNA |
| 14.8.1966 | DARM Wunstorf [GT1.6] | 132 | | Ottfried Stopka | | ?th |
| 20.8.1966 | BARC Oulton Park [Marque] | 50 | TR4 SLR | Neil Dangerfield | C. J. Lawrence | 9th |
| 20.8.1966 | BARC Oulton Park [Special GT] | 50 | TR4 SLR | Neil Dangerfield | C. J. Lawrence | 6th |
| 20.8.1966 | BARC Oulton Park [Special GT] | 72 | Spitfire | A. F. Pateman | Lt. Cdr. C. A. C. Hodgson | DNS |
| 20.8.1966 | BARC Oulton Park [Marque] | 72 | Spitfire | Charles Hodgson | Lt. Cdr. C. A. C. Hodgson | 14th |
| 20.8.1966 | BARC Oulton Park [Handicap] | 73 | Spitfire | Tommy Thomson | Tommy Thomson | DNA |
| 20.8.1966 | BARC Oulton Park [Marque] | 73 | Spitfire | Tommy Thomson | Tommy Thomson | DNA |
| 20.8.1966 | BARC Oulton Park [Marque] | 74 | Spitfire | Chris Williams | Chris Williams | 11th |
| 20.8.1966 | BARC Oulton Park [Special GT] | 75 | Spitfire | E. C. Cotterill | E. C. Cotterill | 13th |
| 20.8.1966 | BARC Oulton Park [Marque] | 75 | Spitfire | E. C. Cotterill | E. C. Cotterill | 22nd |
| 20.8.1966 | BARC Oulton Park [Marque] | 76 | Spitfire | Michael Costin | W. Bradley | 8th |
| 21.8.1966 | 12 h Surfers Paradise | 33 | Spitfire | Stewart / Young | Max Stewart Motors | DNF |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 1 | TR3 | Paul Wallpe | | DNA |
| 28.8.1966 | Mid-Ohio [SR+AP+BP+CP+DP+EP] | 2 | TR4 | Eugene Ferri | | DNA |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 3 | Spitfire | John Fraim | | DNA |
| 28.8.1966 | Mid-Ohio [SR+AP+BP+CP+DP+EP] | 6 | TR4 | Philip Renfroe | | DNA |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 8 | Spitfire | Thomas Wiles, Jr. | | DNA |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 19 | TR3 | Robert Wettengel | | raced |
| 28.8.1966 | Mid-Ohio [SR+AP+BP+CP+DP+EP] | 32 | TR4 | Robert Dorn | | DNA |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 33 | TR3 | Martin Shook | | raced |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 34 | Spitfire | Bill Wolfe | | DNA |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 38 | Spitfire | Carol Clemens | | DNA |
| 28.8.1966 | Mid-Ohio [SR+AP+BP+CP+DP+EP] | 39 | TR4 | Gerald Day | | DNA |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 39 | Spitfire | Robert Johnson | | DNA |
| 28.8.1966 | Hill Climb Sierre Montagna | 58 | Spitfire | Walter Rheiner | Leyland Switzerland | 47th |
| 28.8.1966 | Mid-Ohio [HSR+FP+GP+HP] | 82 | TR3 | Edwin Cromwell | | DNA |
| 28.8.1966 | Hill Climb Sierre Montagna | 208 | Spitfire | Jean-Jacques Thuner | Leyland Switzerland | 51st |
| 28.8.1966 | Hill Climb Sierre Montagna | 210 | Spitfire | Armand Schäfer | Leyland Switzerland | 67th |
| 28.8.1966 | Hill Climb Sierre Montagna | 211 | Spitfire | Oskar Müller | Leyland Switzerland | 79th |
| 28.8.1966 | Hill Climb Sierre Montagna | 212 | Spitfire | Edwin Wildhaber | Leyland Switzerland | 65th |
| 28.8.1966 | Hill Climb Sierre Montagna | 213 | Spitfire | Michel Pilet | Meute | 64th |
| 28.8.1966 | Hill Climb Sierre Montagna | 214 | Spitfire | Gody Winzenried | Gody Winzenried | 74th |
| 28.8.1966 | Hill Climb Sierre Montagna | 215 | Spitfire | Fred Gysler | Leyland Switzerland | DNA |
| 28.8.1966 | Hill Climb Sierre Montagna | 216 | Spitfire | Eric Dupont | Cote | 68th |
| 29.8.1966 | NSCC Silverstone [Marque] | 77 | TR3 | Reg Woodcock | Reginald H. Woodcock | DNA |
| 29.8.1966 | NSCC Silverstone [Marque] | 78 | TR2-3 | Andrew Perkins | A. J. E. Perkins | DNA |
| 3.9.1966 | 200 mile Road America | 5 | TR4 A | Larry Bock | Larry Bock | DNA |
| 3.9.1966 | 200 mile Road America | 14 | TR4 | William M. Devine | William M. Devine | DNA |
| 3.9.1966 | 200 mile Road America | 54 | TR4 | Bennett / Barton | Thomas A. Bennett | DNA |
| 3.9.1966 | 200 mile Road America | 86 | TR4 | Terry Jesk | Terry Jesk | DNA |
| 4.9.1966 | Santa Barbara [AP+BP+CP+DP] | 6 | TR4 | Ken Rodgers | Covina Car Couples | DNA |
| 4.9.1966 | Santa Barbara [AP+BP+CP+DP] | 8 | TR4 A | Jim Dittemore | Jim Dittemore Automatic Transmission | DNA |
| 4.9.1966 | SMRC Ingliston [Marque] | 68 | Spitfire | Tommy Thomson | T. N. Thomson | 7th |
| 4.9.1966 | Santa Barbara [AP+BP+CP+DP] | 88 | TR4 | Phil Reilley | Bob Graham | DNA |
| 10.9.1966 | PMC Silverstone [Marque] | 132 | Spitfire | William Bradley | W. Bradley | DNA |
| 10.9.1966 | PMC Silverstone [Marque] | 142 | TR3 | Reg Woodcock | R. H. Woodcock | DNA |
| 10.9.1966 | PMC Silverstone [GT1.15] | 209 | Spitfire | Peter Cox | P. J. Cox | DNA |
| 10.9.1966 | PMC Silverstone [Marque] | 209 | Spitfire | Peter Cox | P. J. Cox | DNA |
| 18.9.1966 | Bridgehampton [AP+BP+CP+DP] | 1 | TR4 | Robert Adams | Bob Adams | DNA |
| 18.9.1966 | Bridgehampton [AP+BP+CP+DP] | 2 | TR4 A | Sam Pollin | Sam Pollin | DNA |
| 18.9.1966 | SCCA Regional Virginia [Main] | 4 | TR4 | George Beswick | | DNS |
| 18.9.1966 | SCCA Regional Virginia [Main] | 9 | TR4 | John Houston | | DNS |
| 18.9.1966 | SCCA Regional Virginia [Main] | 41 | TR3 A | Carl Grimes | | 6th |
| 18.9.1966 | SCCA Regional Virginia [Main] | 48 | TR4 | Rod Howland | | DNF |
| 18.9.1966 | Zolder [GT] | | Spitfire | Ottfried Stopka | | ?th |
| 24.9.1966 | 5 h Relay Oulton Park | 21 | Spitfire | Jim Toole | Team H.R.L. | DNA |
| 24.9.1966 | 5 h Relay Oulton Park | | | Bill Sparkes | | DNA |
| 25.9.1966 | SM Dalsland [GT2.0] | 9 | TR4 | Lars Larsson | | DNA |
| 25.9.1966 | Coupes de Paris [P1.15+GT1.15] | | Spitfire | Alain Serpaggi | | 5th |
| 25.9.1966 | SM Dalsland [SP2.0] | | Spitfire | Dagobert Swenson | Skaraborghs SVK | ?th |
| 1.10.1966 | 8 Clubs Silverstone [GT+1.6] | 214 | TR4 SLR | Neil Dangerfield | C. J. Lawrence | 8th |
| 2.10.1966 | Tulln-Langenlebarn [GT] | 37 | Spitfire | Werner Grünberger | Werner Grünberger | DNA |
| 2.10.1966 | Tulln-Langenlebarn [GT] | 38 | Spitfire | Helmut Mark | Scuderia Graz | DNA |
| 2.10.1966 | SMRC Ingliston [Special GT1.2] | 58 | Spitfire | Tommy Thomson | T. N. Thomson | DNF |
| 8.10.1966 | BARC Silverstone [Marque] | 43 | TR4 | G. W. Bolt | G. W. Bolt | DNA |
| 8.10.1966 | BARC Silverstone [Marque] | 52 | Spitfire | Michael Costin | W. Bradley | DNA |
| 9.10.1966 | NSCC Mallory Park [Special GT 1.15] | 37 | Spitfire | Peter Cox | Peter J. Cox | raced |
| 9.10.1966 | NSCC Mallory Park [Special GT +1.15] | 77 | TR3 | Reg Woodcock | Reginald H. Woodcock | raced |
| 16.10.1966 | SCCA Regional Virginia [SR+DP+FP+BS] | 0 | TR3 | Vic Matthews | | 3rd |
| 16.10.1966 | SCCA Regional Virginia [SR+DP+FP+BS] | 4 | TR3 | Robert Wey | | 16th |
| 16.10.1966 | SCCA Regional Virginia [SR+DP+FP+BS] | 14 | TR4 | Lowrey | | 11th |
| 16.10.1966 | SCCA Regional Virginia [SR+DP+FP+BS] | 34 | TR3 | Virginius Swimme | | 10th |
| 16.10.1966 | SCCA Regional Virginia [SR+DP+FP+BS] | 61 | TR4 | Lee Blevins | | 9th |
| 16.10.1966 | SCCA Regional Virginia [SR+DP+FP+BS] | 146 | TR4 | John Williams | | 4th |