| 19.6.1966 | Hockenheim [S1.15/Racing] | 73 | Spitfire | Michel Rosset | Ecurie Léman | DNA |
| 19.6.1966 | Hockenheim [S1.15/Racing] | 74 | Spitfire | Walter Rheiner | Leyland Triumph SRT | 5th |
| 19.6.1966 | Hockenheim [ser.T2.0/T+1.6/GT1.15] | 162 | Spitfire | Edwin Wildhaber | Leyland Triumph SRT | 5th |
| 19.6.1966 | Hockenheim [ser.T2.0/T+1.6/GT1.15] | 163 | Spitfire | Oskar Müller | Leyland Triumph SRT | DNA |
| 19.6.1966 | Hockenheim [ser.T2.0/T+1.6/GT1.15] | 164 | Spitfire | Jean-Jacques Thuner | Leyland Triumph SRT | 3rd |
| 25.6.1966 | Watkins Glen [Production] | 27 | TR3 B | Harry Robert Clark | Harry Robert Clark | DNA |
| 25.6.1966 | Watkins Glen [Production] | 33 | | Michael Wiernicki | Michael V. Wiernicki | DNA |
| 25.6.1966 | Watkins Glen [Production] | 41 | TR4 A | | Schroeder Imported Motors Corp. | DNA |
| 25.6.1966 | Watkins Glen [Production] | 61 | | Ray Hawkins | Ray Hawkins | DNA |
| 25.6.1966 | Watkins Glen [Production] | 74 | Spitfire | Joseph Gibbons | Joseph M. Gibbons | DNA |
| 26.6.1966 | Trophée d'Auvergne | 61 | | Maurice Bost | | 14th |
| 27.6.1966 | Hawaii [Handicap] | | TR3 | Mike Rockett | | 1st |
| 27.6.1966 | Hawaii [Main] | | TR3 | Mike Rockett | | raced |
| 2.7.1966 | BAC Regionals Harewood Acres [Challenge Cup] | 107 | TR4 A | Craig Hill | Team Triumph | DNA |
| 2.7.1966 | BRSCC Oulton Park [GT] | 113 | Spitfire | Peter Cox | Peter Cox | DNF |
| 3.7.1966 | Dalsland [GT2.0] | 16 | Spitfire | Ake Frii | | 9th |
| 3.7.1966 | SCCA National Greenwood [CP+DP+EP] | 65 | TR4 A | Arlo Meyer | | 2nd |
| 3.7.1966 | SCCA National Greenwood [CP+DP+EP] | 66 | TR4 | Don Stacker | | DNF |
| 3.7.1966 | SCCA National Greenwood [CP+DP+EP] | 98 | TR4 | Dick Kantrud | | 9th |
| 3.7.1966 | SCCA National Ponca City [CP+DP+EP] | | TR4 | Dick Campbell | | DNF |
| 3.7.1966 | SCCA National Ponca City [CP+DP+EP] | | TR4 | Ray Pickering | | 1st |
| 4.7.1966 | SCCA National Galveston [CP+DP+EP] | | TR4 | | | raced |
| 4.7.1966 | SCCA National Galveston [CP+DP+EP] | | TR4 | | | raced |
| 9.7.1966 | Martini Trophy Silverstone | 5 | TR4 SLR | Neil Dangerfield | C. J. Lawrence | DNA |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 48 | TR4 | Steve Froines | | DNA |
| 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] | 77 | TR4 | Bill Howell | | DNA |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 83 | TR4 | William Martin | | DNA |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 86 | TR4 | Ernie Haze | | 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 / Donà | | 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 [Marque] | 73 | Spitfire | Tommy Thomson | Tommy Thomson | DNA |
| 20.8.1966 | BARC Oulton Park [Handicap] | 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 [GT1.15] | 209 | Spitfire | Peter Cox | P. J. Cox | DNA |