| 27.3.1966 | SCCA Regional Newport [Main] | | | Dick Schmidt | | 2nd |
| 27.3.1966 | SCCA Regional Newport [Main] | | | John Stuhldreier | | 3rd |
| 3.4.1966 | SCCA Regional Kirker Creek [CM+DM+EM+FM+GM+DP] | 4 | | Bill Stewart | | DNA |
| 3.4.1966 | SCCA National Marlboro [CSR+DSR+ESR+FSR+GSR+HSR] | 23 | | George Alderman | | 2nd |
| 3.4.1966 | SCCA Regional Kirker Creek [CM+DM+EM+FM+GM+DP] | 58 | | Walter Benson | | DNS |
| 3.4.1966 | SCCA National Tucson [CM+DM+EM+FM+GM] | | #23-S-53 | Frank Monise | | 2nd |
| 3.4.1966 | SCCA National Tucson [CM+DM+EM+FM+GM] | | | Marion Whittington | | ?th |
| 9.4.1966 | BRSCC Oulton Park [SR] | 36 | | John Nicholson | John Nicholson | 8th |
| 9.4.1966 | BRSCC Oulton Park [Formula Libre] | 36 | | John Nicholson | John Nicholson | 12th |
| 9.4.1966 | BRSCC Oulton Park [SR] | 37 | | Ben Moore | Ben Moore | 4th |
| 9.4.1966 | BRSCC Oulton Park [SR] | 38 | | Malcolm West | M. J. West | 7th |
| 9.4.1966 | BRSCC Oulton Park [SR] | 40 | | Peter Demeritt | Peter Demeritt | DNA |
| 9.4.1966 | BRSCC Oulton Park [GT] | 41 | | Trevor Twaites | Trevor Twaites | raced |
| 9.4.1966 | BRSCC Oulton Park [SR] | 41 | | Trevor Twaites | Trevor Twaites | 5th |
| 9.4.1966 | BRSCC Oulton Park [SR] | 48 | | Peter Dickinson | Peter Dickinson | DNA |
| 9.4.1966 | BRSCC Oulton Park [SR] | 49 | | Richard Knight | Richard Knight | 1st |
| 10.4.1966 | GP Singapore | 8 | | Lee Han Seng | | 1st |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 12 | | John Nicholson | J. Nicholson | DNA |
| 11.4.1966 | BRSCC Mallory Park [SR] | 12 | | John Nicholson | J. Nicholson | ?th |
| 11.4.1966 | BRSCC Mallory Park [SR] | 103 | | Ben Moore | B. A. Moore | raced |
| 11.4.1966 | BRSCC Mallory Park [SR] | 110 | | Alan Fowler | A. Fowler | raced |
| 11.4.1966 | Lavant Cup Goodwood | 146 | | Jack Paterson | Race Proved by Willment | DNA |
| 11.4.1966 | Lavant Cup Goodwood | 151 | | Tommy Weber | Vegantune Engineering | DNF |
| 11.4.1966 | Lavant Cup Goodwood | 152 | | Mike Garton | Vegantune Engineering | raced |
| 11.4.1966 | Lavant Cup Goodwood | 161 | | Jim Morley | J. F. Morley | 6th |
| 11.4.1966 | Lavant Cup Goodwood | 162 | #23-S-71 | Robin McArthur | R. McArthur | raced |
| 11.4.1966 | Lavant Cup Goodwood | 163 | | Peter Gaydon | P. R. H. Gaydon | ?th |
| 11.4.1966 | Lavant Cup Goodwood | 164 | | Ken Crook | K. Crook | raced |
| 11.4.1966 | Lavant Cup Goodwood | 165 | | Robin Widdows | R. M. Widdows | DNA |
| 11.4.1966 | SA SCC Roy Hesketh | | | Keith Berrington-Smith | | 2nd |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 130 | | Ken Crook | Lewis Nunn Racing | 4th |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 130 | | Ken Crook | Lewis Nunn Racing | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 131 | | Ben Moore | Ben Moore | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | | | Peter Dickinson | Peter Dickinson | raced |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 16 | | Richard Knight | R. Knight | DNE |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 37 | | John Nicholson | A. McCracken | 3rd |
| 17.4.1966 | SCCA National Stuttgart [Main] | | | Robert Shaw | | 8th |
| 17.4.1966 | SCCA National Vineland [CSR+DSR+ESR+FSR] | | | George Alderman | | 6th |
| 17.4.1966 | SCCA National Fernandina Beach [GM+HM+DP+EP] | | | Wick Williams | | 1st |
| 17.4.1966 | SCCA National Fernandina Beach [GM+HM+DP+EP] | | | George Avant | | 2nd |
| 24.4.1966 | SM Knutstorp [SP2.0] | 0? | | Gunnar Carlsson | Stockholms BK | 3rd |
| 24.4.1966 | SM Knutstorp [SP2.0] | 5 | | Gustaf Dieden | Karlsgoga MK | 4th |
| 24.4.1966 | SM Knutstorp [SP2.0] | 8 | | Sven Edvin Asberg | | DNA |
| 24.4.1966 | SM Knutstorp [SP2.0] | 9 | | Göte-Ingvar Johansson | Hyllinge MS | DNF |
| 24.4.1966 | USRRC Las Vegas | 16 | #23-S-82 | George Follmer | George Follmer | 7th |
| 24.4.1966 | USRRC Las Vegas | 36 | | Pierre Phillips | Pierres Motors | DNA |
| 24.4.1966 | USRRC Las Vegas | 42 | | Candido DaMota | Candido Da Mota | DNS |
| 24.4.1966 | USRRC Las Vegas | 46 | | John Morton | | 10th |
| 24.4.1966 | SCCA Regional Shelton [Main] | | | Dick Schmidt | | 3rd |
| 24.4.1966 | SCCA Regional Shelton [Main] | | | Tony Boothby | | DNS |
| 25.4.1966 | Zandvoort [Formula Libre] | 2 | | Ron Deinum | | 1st |
| 25.4.1966 | 1000 km Monza | 42 | | Perrot / Knecht | Squadra Tartaruga | DNA |
| 30.4.1966 | Tourist Trophy | 18 | | Tommy Weber | Vegantune Engineering | 5th |
| 30.4.1966 | Tourist Trophy | 20 | | Mike Garton | Vegantune Engineering | 12th |
| 1.5.1966 | SM Skarpnäck [SP2.0] | 4 | | Gunnar Carlsson | | DNA |
| 1.5.1966 | SM Skarpnäck [SP2.0] | 5 | | Sven Carrhage | MS Stockholm | 5th |
| 1.5.1966 | SM Skarpnäck [SP2.0] | 9 | | Gustaf Dieden | Karlsgoga MK | 4th |
| 1.5.1966 | SM Skarpnäck [SP2.0] | 10 | | Göte-Ingvar Johansson | Hyllinge MS | DNF |
| 1.5.1966 | USRRC Riverside | 16 | #23-S-82 | George Follmer | | 8th |
| 1.5.1966 | USRRC Riverside | 23 | | Doug Revson | | DNF |
| 1.5.1966 | USRRC Riverside | 46 | | John Morton | | 9th |
| 1.5.1966 | SCCA National Virginia [CSR+DSR+ESR+FSR+GSR] | 54 | #23-S-28 | Joel Nelson | Joel Nelson | 12th |
| 1.5.1966 | SCCA National Virginia [CSR+DSR+ESR+FSR+GSR] | 121 | | George Avent | | 11th |
| 1.5.1966 | SCCA National Virginia [CSR+DSR+ESR+FSR+GSR] | 122 | | Wick Williams | | 8th |
| 1.5.1966 | SCCA National Newport [Modified+AP+BP] | | | Pierre Phillips | | unused |
| 1.5.1966 | USRRC Riverside | | | Charles Kulmann | | 15th |
| 1.5.1966 | Magny-Cours | | | Mike Knight | | 1st |
| 1.5.1966 | SCCA National Newport [Modified+AP+BP] | | | Eric Anderson | | 1st |
| 1.5.1966 | SCCA National Newport [Modified+AP+BP] | | | Dick Schmidt | | 2nd |
| 1.5.1966 | USRRC Riverside | | | Nick Dioguardi | | DNF |
| 7.5.1966 | SCCA Regional Laguna Seca [CM+DM+EM+FM+GM] | 4 | | Bill Stewart | | DNA |
| 7.5.1966 | BARC Oulton Park [Sports/Clubman] | 5 | #23-S-120 | Tony Beeson | A. W. Beeson | DNA |
| 7.5.1966 | BARC Oulton Park [Sports/Clubman] | 6 | | Frank Greenwood | F. Greenwood | DNA |
| 7.5.1966 | BARC Oulton Park [Sports/Clubman] | 10 | | Ben Moore | B. A. Moore | DNS |
| 7.5.1966 | BARC Oulton Park [Sports/Clubman] | 11 | | Ken Crook | Ken Crook | 3rd |
| 8.5.1966 | USRRC Laguna Seca | 4 | | | | DNS |
| 8.5.1966 | Velodromloppet [SP2.0] | 5 | | Gustaf Dieden | | DNA |
| 8.5.1966 | Velodromloppet [SP2.0] | 6 | | Sven Carrhage | MS Stockholm | 4th |
| 8.5.1966 | USRRC Laguna Seca | 14 | | Dave Ridenour | | 10th |
| 8.5.1966 | USRRC Laguna Seca | 16 | #23-S-82 | George Follmer | | 6th |
| 8.5.1966 | USRRC Laguna Seca | 23 | | Doug Revson | | 9th |
| 8.5.1966 | USRRC Laguna Seca | 33A | | Pierre Phillips | | DNF |
| 8.5.1966 | SMRC Ingliston [S/Special GT1.2] | 37 | | John Nicholson | J. Nicholson | DNA |
| 8.5.1966 | USRRC Laguna Seca | 41 | | Dick Schmidt | | 12th |
| 8.5.1966 | USRRC Laguna Seca | 69 | | Eric Anderson | | DNA |
| 14.5.1966 | Silverstone International | 1 | | Vic Wilson | Vegantune Engineering | DNF |
| 15.5.1966 | GP Paris [SP] | | | Mike Knight | | 5th |
| 15.5.1966 | GP Paris [SP] | | | Vincent Palmaro | | 6th |
| 16.5.1966 | Player's Pacific Westwood | 1 | | George Chapman | | 7th |
| 16.5.1966 | Player's Pacific Westwood | 3 | | Pierre Phillipe | | DNF |
| 16.5.1966 | Player's Pacific Westwood | 4 | | Harold Brown | | 4th |
| 16.5.1966 | Player's Pacific Westwood | 14 | | Dave Ridenour | | 10th |
| 16.5.1966 | Player's Pacific Westwood | 23 | | Tony Boothby | | DNF |
| 16.5.1966 | Player's Pacific Westwood | 26 | | John Stuhldreier | | 12th |
| 16.5.1966 | Player's Pacific Westwood | 34 | | Max Beimler | | DNF |
| 16.5.1966 | Player's Pacific Westwood | 69 | | Eric Anderson | | 9th |
| 16.5.1966 | Player's Pacific Westwood | 411 | | Dick Schmidt | | 16th |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 4 | | Sven Carrhage | | DNA |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 5 | | Göte-Ingvar Johansson | | 4th |
| 22.5.1966 | SCCA Regional Watkins Glen [SR] | | | Phil Seitz | | 1st |