| 1.5.1955 | SCCA Regional Thompson [UR] | 75 | 500 Mark VI (T18) | Lex duPont | | raced |
| 1.5.1955 | Preliminary Bakersfield [Ladies+FIII] | 106 | 500 | Bill Lowe | | ?th |
| 1.5.1955 | SCCA Regional Thompson [UR] | 121 | 500 Special | Gordon Lipe | | DNF |
| 7.5.1955 | Silverstone International | 6 | T38 | Peter Whitehead | P. N. Whitehead | 13th |
| 7.5.1955 | Silverstone International | 24 | T40 | Mike Keen | R. J. Chase | DNA |
| 7.5.1955 | Silverstone International | 25 | T25 | Tony Crook | T. A. D. Crook | 15th |
| 7.5.1955 | Silverstone International | 36 | T39 | Ivor Bueb | Cooper Car Co. | 10th |
| 14.5.1955 | ADMC Crimond [Sports] | 1 | T23 | Jack Walton | J. H. Walton | DNA |
| 14.5.1955 | ADMC Crimond [S2.7] | 1 | T23 | Jack Walton | J. H. Walton | DNA |
| 14.5.1955 | ADMC Crimond [Sports] | 2 | T33 | Jack Walton | J. H. Walton | DNA |
| 14.5.1955 | ADMC Crimond [S1.5] | 26 | T21 | Peter Jackson | P. Jackson | 2nd |
| 14.5.1955 | ADMC Crimond [S2.7] | 26 | T21 | Peter Jackson | P. Jackson | 1st |
| 14.5.1955 | ADMC Crimond [Sports] | 31 | 500 | Jimmy Somervail | Border Reivers | DNA |
| 14.5.1955 | ADMC Crimond [Sports] | 32 | 500 | Keith Hall | Border Reivers | DNA |
| 14.5.1955 | ADMC Crimond [Sports] | 36 | 500 | Joan Lawrence | Mrs. W. Lawrence | DNA |
| 14.5.1955 | MMKMC Silverstone [Formula Libre] | 77 | 500 | Jack Moor | | 4th |
| 14.5.1955 | MMKMC Silverstone [R2.5] | 91 | | Tony Marsh | | 1st |
| 14.5.1955 | MMKMC Silverstone [Members Handicap] | 92 | T23 Barb | Alex McMillan | | 1st |
| 14.5.1955 | MMKMC Silverstone [Sports Unlimited] | 92 | T23 Barb | Alex McMillan | | 3rd |
| 14.5.1955 | MMKMC Silverstone [S2.5] | 92 | T23 Barb | Alex McMillan | | 1st |
| 14.5.1955 | MMKMC Silverstone [Sports Unlimited] | 117 | T33 | Cyril Wick | | 1st |
| 15.5.1955 | Bol d'Or | 9 | T20 Sports | Kyffin / Halford | | DNF |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 14 | 500 Special | Gordon Lipe | G. Lipe | 1st |
| 15.5.1955 | Baden [S+F3] | 15 | 500 | Edi Wanek | Edi Wanek | raced |
| 15.5.1955 | SCCA Regional Shelton [S+1.5/FIII] | 121 | 500 Mark IX | George Keck | | raced |
| 21.5.1955 | LCCC Oulton Park [Handicap S2.1] | 5 | T23 Barb | Alex McMillan | Alex McMillan | DNA |
| 21.5.1955 | LCCC Oulton Park [Sports Handicap] | 5 | T23 Barb | Alex McMillan | Alex McMillan | DNA |
| 21.5.1955 | LCCC Oulton Park [Handicap 2.1] | 5 | T23 Barb | Alex McMillan | Alex McMillan | DNA |
| 21.5.1955 | LCCC Oulton Park [Racing Handicap] | 5 | T23 Barb | Alex McMillan | Alex McMillan | DNA |
| 21.5.1955 | LCCC Oulton Park [Racing Handicap] | 18 | 500 | Terry Edmeston | Terry Edmeston | DNA |
| 21.5.1955 | LCCC Oulton Park [Racing Handicap] | 43 | 500 | Derek Strange | J. C. Broadhead | 3rd |
| 21.5.1955 | LCCC Oulton Park [Racing Handicap] | 44 | 500 | Wilf Allen | Wilf Allen | DNA |
| 28.5.1955 | SMRC Snetterton [S2.0] | 31 | T39 | Tommy Sopwith | Eq. Endeavour | 2nd |
| 28.5.1955 | SMRC Snetterton [S1.5] | 31 | T39 | Tommy Sopwith | Eq. Endeavour | 2nd |
| 28.5.1955 | SMRC Snetterton [S2.0] | 32 | T21 | Peter Jackson | | 8th |
| 28.5.1955 | SMRC Snetterton [S2.0] | 51 | | Tony Crook | | 6th |
| 29.5.1955 | BRSCC Brands Hatch [S1.2] | 30 | T39 | Ivor Bueb | Cooper Car Co. | 1st |
| 29.5.1955 | 12 h Hyères | 32 | T33 | Bradnack / Truman | | DNF |
| 29.5.1955 | BRSCC Brands Hatch [S1.5] | 47 | T21 | Peter Jackson | | 4th |
| 29.5.1955 | BRSCC Brands Hatch [Sports] | 61 | T22 | Alan Brown | R. J. Chase | 4th |
| 29.5.1955 | BRSCC Brands Hatch [Sports] | 64 | T33 | Cyril Wick | | 3rd |
| 29.5.1955 | BRSCC Brands Hatch [Sports] | 67 | T25 | Bert Rogers | | 6th |
| 29.5.1955 | SCCA Regional Thompson [UR] | 75 | 500 Mark VI (T18) | Lex duPont | | 3rd |
| 29.5.1955 | SCCA Regional Thompson [UR] | 110 | 500 | Rowland Keith | | 5th |
| 29.5.1955 | SCC-BC Abbotsford [S+1.5/FIII] | 121 | 500 Mark IX | George Keck | | raced |
| 29.5.1955 | SCC-BC Abbotsford [S+1.5/FIII] | 122 | 500 Mark VI | Ralph Ormsbee | | raced |
| 29.5.1955 | Santa Barbara [S1.5] | 124 | | Pete Lovely | | raced |
| 30.5.1955 | Whitsun Goodwood [Sports] | 1 | T39 | Reg Parnell | Eq. Endeavour | 9th |
| 30.5.1955 | Whitsun Goodwood [S1.5] | 1 | T39 | Reg Parnell | Eq. Endeavour | 2nd |
| 30.5.1955 | National Davidstow [S2.75] | 8 | T20 Sports | Tom Kyffin | | 3rd |
| 30.5.1955 | Whitsun Goodwood [S1.5] | 15 | T39 | Tommy Sopwith | Eq. Endeavour | 4th |
| 30.5.1955 | Whitsun Goodwood [Sports] | 15 | T39 | Tommy Sopwith | Eq. Endeavour | raced |
| 30.5.1955 | Whitsun Goodwood [Sports] | 23 | T25 | Bert Rogers | A. P. O. Rogers | 7th |
| 30.5.1955 | Whitsun Goodwood [S2.0] | 23 | T25 | Bert Rogers | A. P. O. Rogers | 4th |
| 30.5.1955 | BRSCC Crystal Palace [S1.5] | 30 | T39 | Ivor Bueb | Cooper Car Co. | 1st |
| 30.5.1955 | BRSCC Crystal Palace [S1.5] | 47 | T21 | Jackson / Lane | | 5th |
| 30.5.1955 | BRSCC Crystal Palace [Sports Unlimited] | 61 | T22 | Alan Brown | R. J. Chase | 3rd |
| 30.5.1955 | Whitsun Goodwood [Sports] | 62 | T33 | Cyril Wick | C. Wick | DNS |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 62 | T33 | Cyril Wick | C. Wick | DNF |
| 4.6.1955 | 8 Clubs Silverstone [Scratch] | 80 | T23 Barb | Alex McMillan | | 1st |
| 4.6.1955 | 8 Clubs Silverstone [Handicap] | 80 | T23 Barb | Alex McMillan | | 1st |
| 4.6.1955 | 8 Clubs Silverstone [Scratch] | 184 | T33 | Cyril Wick | | 2nd |
| 12.6.1955 | 24 h Le Mans | 11 | T38 | Whitehead / Whitehead | Cooper Cars Co | DNF |
| 12.6.1955 | 24 h Le Mans | 47 | T39 | Brown / Wadsworth | Cooper Cars Co | 21st |
| 18.6.1955 | BARC Goodwood [S1.25] | 1 | T39 | Tommy Sopwith | Eq. Endeavour | 1st |
| 18.6.1955 | BARC Goodwood [S1.5] | 1 | T39 | Tommy Sopwith | Eq. Endeavour | 1st |
| 18.6.1955 | BARC Goodwood [S3.5] | 57 | T25 | Bert Rogers | | 5th |
| 19.6.1955 | Consolation Hansen Dam [S+1.5+FIII] | 6 | 500 Mark II | John Fox | John Fox | ?th |
| 19.6.1955 | Consolation Hansen Dam [S+1.5+FIII] | 14 | 500 Mark V | Henry Lofgran | Henry Lofgran | DNA |
| 19.6.1955 | GP Shell Imola | 44 | | Roy Salvadori | | DNF |
| 19.6.1955 | Consolation Hansen Dam [S+1.5+FIII] | 101 | 500 Mark V | Harry Morrow | Harry Morrow | ?th |
| 19.6.1955 | Consolation Hansen Dam [S+1.5+FIII] | 103 | 500 Mark VI | Jim Trimble | | DNA |
| 19.6.1955 | Consolation Hansen Dam [S+1.5+FIII] | 104 | 500 Mark VI | Dick Trimble | Dick Trimble | ?th |
| 19.6.1955 | SCCA Regional Shelton [S+1.5/FIII] | 121 | 500 Mark IX | George Keck | | raced |
| 25.6.1955 | MMEC Silverstone [Formula Libre] | 3 | T23 Barb | Alex McMillan | | 2nd |
| 25.6.1955 | MMEC Silverstone [S3.0+S1.5s] | 3 | T23 Barb | Alex McMillan | | 1st |
| 25.6.1955 | MMEC Silverstone [Sports Unlimited] | 3 | T23 Barb | Alex McMillan | | 1st |
| 25.6.1955 | ECMC Snetterton [Handicap] | 7 | T39 | Jim Russell | | 4th |
| 26.6.1955 | GP Portugal | 6 | T38 | Peter Whitehead | P. N. Whitehead | 4th |
| 26.6.1955 | SCC-BC Bellingham [S+1.5/FIII] | 121 | 500 Mark IX | George Keck | | raced |
| 26.6.1955 | SCC-BC Bellingham [S+1.5/FIII] | 125 | 500 Mark VI | Ralph Ormsbee | | raced |
| 2.7.1955 | NSCC Oulton Park [R2.0] | 46 | T21 | Peter Jackson | Peter Jackson | DNA |
| 2.7.1955 | NSCC Oulton Park [S1.4/S2.0] | 46 | T21 | Peter Jackson | Peter Jackson | DNA |
| 2.7.1955 | NSCC Oulton Park [R2.0] | 48 | T21 | Don Low | Don Low | DNA |
| 2.7.1955 | NSCC Oulton Park [S1.4/S2.0] | 48 | T21 | Don Low | Don Low | raced |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 28 | 500 Special | Gordon Lipe | | 9th |
| 4.7.1955 | SCCA National Beverly [FM+GM+HM+DP+EP] | 28 | 500 Special | Gordon Lipe | | 1st |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 141 | 500 | Rowland Keith | | 18th |
| 9.7.1955 | Leinster Trophy | | T21 | Peter Jackson | | raced |
| 10.7.1955 | BRSCC Brands Hatch [S1.2] | 2 | T39 | Jim Russell | Cooper Car Co. | 1st |
| 10.7.1955 | BRSCC Brands Hatch [S1.5] | 2 | T39 | Jim Russell | Cooper Car Co. | 1st |
| 10.7.1955 | BRSCC Brands Hatch [S1.2] | 4 | T39 | Ivor Bueb | Cooper Car Co. | 2nd |
| 10.7.1955 | BRSCC Brands Hatch [S1.5] | 9 | T39 | Peter Gammon | | 3rd |
| 10.7.1955 | WJC Charterhall [Racing Handicap] | 42 | T20 | Jimmy Somervail | Border Reivers | 3rd |
| 10.7.1955 | BRSCC Brands Hatch [S+1.9] | 48 | T22 | Alan Brown | | 3rd |
| 10.7.1955 | WJC Charterhall [Racing Handicap] | 65 | 500 Mark VIII | Cliff Allison | C. Allison | 1st |
| 10.7.1955 | Preliminary Torrey Pines [Ladies+FIII] | 66 | 500 Mark IX | John Fox | John Fox | ?th |
| 10.7.1955 | Preliminary Torrey Pines [Ladies+FIII] | 73 | 500 Mark V | Leon Becker | Dr. Leon Becker | ?th |
| 10.7.1955 | Preliminary Torrey Pines [Ladies+FIII] | 101 | 500 Mark V | Harry Morrow | Harry Morrow | ?th |
| 10.7.1955 | SCCA National Torrey Pines [S1.5] | 124 | | Pete Lovely | Pete Lovely | 1st |