| 11.4.1966 | BRSCC Mallory Park [SR] | 4 | 30 JCB | Peter Sadler | P. Sadler | raced |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 4 | 30 JCB | Peter Sadler | P. Sadler | DNA |
| 11.4.1966 | BRSCC Mallory Park [SR] | 5 | 30/40 | John Berry | J. Berry | raced |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 5 | 30/40 | John Berry | J. Berry | DNA |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 7 | 22 | Rod Pickering | B.P.G. Engineering Ltd. | 4th |
| 11.4.1966 | BRSCC Mallory Park [SR] | 12 | 23 B | John Nicholson | J. Nicholson | ?th |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 12 | 23 B | John Nicholson | J. Nicholson | DNA |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 18 | 18 | Peter Farrer | P. W. Farrer | DNA |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 19 | 20 | E. F. Heasell | E. Heasell | DNA |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 21 | 18 | Roy Dowen | R. Dowen | DNA |
| 11.4.1966 | BRSCC Mallory Park [Formula Libre] | 23 | 20 | A. G. Hardisty | Christey and Hardisty (Motors) Ltd. | DNA |
| 11.4.1966 | BRSCC Mallory Park [GT] | 71 | Eleven GT | Ben Moore | B. A. Moore | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 81 | Elan | John Nicholson | J. Nicholson | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 82 | Elan | | Mefco Racing | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 83 | Elan | Ian Turnbull | I. Turnbull | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 85 | Elan | G. Warden | G. Warden | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 86 | Seven GT | S. L. J. Cook | C.S.M.A. Racing Team | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 89 | Elite | J. H. Howard | J. H. Howard | DNA |
| 11.4.1966 | BRSCC Mallory Park [GT] | 90 | Elan | Cliff Lawrence | Barnet Motor Co. Ltd. | raced |
| 11.4.1966 | BRSCC Mallory Park [GT] | 94 | Elan | John Harris | M. Gartlaw | 1st |
| 11.4.1966 | BRSCC Mallory Park [SR] | 103 | 23 | Ben Moore | B. A. Moore | raced |
| 11.4.1966 | BRSCC Mallory Park [SR] | 104 | Eleven | C. J, Hayden | C. J. Hayden | raced |
| 11.4.1966 | BRSCC Mallory Park [SR] | 107 | Seven | M. Morton | M. Morton | raced |
| 11.4.1966 | BRSCC Mallory Park [SR] | 108 | Seven Super | James Leaver | J. G. Leaver | raced |
| 11.4.1966 | BRSCC Mallory Park [SR] | 110 | 23 B | Alan Fowler | A. Fowler | raced |
| 11.4.1966 | SA SCC Roy Hesketh | | Seven | Brian McKenzie | | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 1 | Seven | Don Hulme | Don Hulme | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 1 | Seven | Don Hulme | Don Hulme | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 2 | Seven | Mike Trye | Mike Trye | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 3 | Eleven | Jack Walsh | Jack Walsh | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 5 | Seven | Clive Doyle | Clive Doyle | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 15 | Seven | Roy Begent | Roy Begent | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 16 | Seven Super | Peter Crossley | Peter Crossley | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 17 | Seven Super | Ron Turnbull | J. Blumer | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 18 | Seven Super | David Aukland | David Aukland | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 21 | Seven | John Enis | John Enis | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 21 | Seven | John Enis | John Enis | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 22 | Elan | Arnold Milburn | Arnold Milburn | 5th |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 51 | Seven | Stuart Gerrell | Stuart Gerrell | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 52 | Seven | Don Molyneux | Don Molyneux | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 53 | Seven | Peter Poole | Peter Poole | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 55 | Seven | Peter Poole | Peter Poole | raced |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 56 | Seven | Brian Dorey | James Brian Dorey | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 56 | Seven | Brian Dorey | James Brian Dorey | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 57 | Seven | Pete Barber | Pete Barber | 4th |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 58 | Seven Super | James Leaver | James Leaver | DNA |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 60 | Seven | Derek Rex | Derek Rex | 3rd |
| 16.4.1966 | LCCC Oulton Park [Clubman] | 61 | Seven | Brian Rippingale | Brian Rippingale | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 111 | 22 | James Bracegirdle | A. D. Bracegirdle | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 112 | 20 | Albert McMillan | Christy and Hardy Motors Ltd. | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 114 | 41 | Teddie Dawson | Teddie Dawson | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 116 | 41 | Chris Moore | Chris Moore | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 119 | 41 | Mo Nunn | Lewis Nunn Racing | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 120 | 31 | Mo Nunn | Lewis Nunn Racing | raced |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 122 | 31 | Michael Potter | Jim Russell Racing Drivers' School | DNA |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 128 | 19 | John Scott-Davies | Aintree Circuit Racing Team | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 128 | 19 | John Scott-Davies | Aintree Circuit Racing Team | 3rd |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 130 | 23 B | Ken Crook | Lewis Nunn Racing | 4th |
| 16.4.1966 | LCCC Oulton Park [Formula Libre] | 130 | 23 B | Ken Crook | Lewis Nunn Racing | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 131 | 23 | Ben Moore | Ben Moore | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 132 | Seven | Roy Jones | Roy Jones | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 138? | Seven | Derek Rex | Derek Rex | ?th |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 139 | Elan | Allan Ordidge | Allan Ordidge | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 140 | Elan 26 Racing S2 | Morris / Hone / Mould | Mefco Racing | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 141 | Elan | Alan Minshaw | Alan Minshaw | DNA |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | | 23 B | Peter Dickinson | Peter Dickinson | raced |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 16 | 23 B | Richard Knight | R. Knight | DNE |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 33 | Elan | Bill Dryden | J. N. Cuthbert | 1st |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 34 | Elan | Ernest Blackadder | E. Blackadder | 4th |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 35 | Elan | John Lepp | Sports Motors | 2nd |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 36 | Elan | Sandy McCracken | A. McCracken | 3rd |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 37 | 23 B | John Nicholson | A. McCracken | 3rd |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 41 | Seven Super | John Love | J. Love | 6th |
| 17.4.1966 | SMRC Ingliston [S/Special GT+1.2] | 45 | Elan | D. J. Mackay | D. J. Mackay | DNA |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 47 | Eleven GT Le Mans | Geoff Crossley | G. Crossley | DNA |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 50 | Eleven | Douglas Lamb | D. C. Lamb | DNA |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 51 | Eleven GT | Reg Forester-Smith | R. Forester-Smith | DNA |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 53 | 17 | V. Connolly | V. Connolly | DNA |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 61 | Seven | John Ross | J. S. H. Ross | DNA |
| 17.4.1966 | SMRC Ingliston [S/Special GT1.2] | 82 | Seven | J. Steel | P. de Banks | DNA |
| 17.4.1966 | SCCA National Fernandina Beach [CM+DM+EM+FM+AP+BP+CP] | | 19 Harrison Special | Charlie Kolb | | 1st |
| 17.4.1966 | SCCA National Vineland [CSR+DSR+ESR+FSR] | | 23 B | George Alderman | | 6th |
| 17.4.1966 | SCCA National Fernandina Beach [GM+HM+DP+EP] | | 23 B | Wick Williams | | 1st |
| 17.4.1966 | SCCA National Vineland [AP+BP] | | Elan | Bob Leitzinger | | 2nd |
| 17.4.1966 | SCCA National Stuttgart [Main] | | Elan | Ed Tucker | | 3rd |
| 17.4.1966 | SCCA National Stuttgart [Main] | | 23 B | Robert Shaw | | 8th |
| 17.4.1966 | SCCA National Fernandina Beach [GM+HM+DP+EP] | | 23 | George Avant | | 2nd |
| 17.4.1966 | SCCA National Stuttgart [Main] | | 30 | Homer Rader | | DNA |
| 17.4.1966 | SCCA National Vineland [AP+BP] | | Elan | Pete Claydon | | 3rd |
| 17.4.1966 | ICNSCC Kent [Modified] | | Mark VI | Loren St. Lawrence | | 3rd |
| 17.4.1966 | SCCA National Fernandina Beach [CM+DM+EM+FM+AP+BP+CP] | | Elan | Bob McQueen | | 3rd |
| 17.4.1966 | ICNSCC Kent [Trophy] | | Mark VI | Loren St. Lawrence | | 3rd |
| 24.4.1966 | USRRC Las Vegas | 2 | 30/40 | Bob Challman | Ecurie Shirlee | DNA |
| 24.4.1966 | USRRC Las Vegas | 5 | | Dan Parkinson | Dan Parkinson | DNA |
| 24.4.1966 | USRRC Las Vegas | 16 | 23 B | George Follmer | George Follmer | 7th |
| 24.4.1966 | USRRC Las Vegas | 29 | 19 G | Steve Diulo | Steve Diulo | 12th |
| 24.4.1966 | USRRC Las Vegas | 36 | 23 B | Pierre Phillips | Pierres Motors | DNA |
| 24.4.1966 | USRRC Las Vegas | 42 | 23 B | Candido DaMota | Candido Da Mota | DNS |
| 24.4.1966 | USRRC Las Vegas | 44 | 19 | Jerry Hansen | Jerry Hansen | DNF |
| 24.4.1966 | USRRC Las Vegas | 46 | 23 | John Morton | | 10th |