| 13.3.1955 | 12 h Sebring | 40 | #AHS 3501 | Cook / Lansing | Hobart A. H. Cook | 16th |
| 13.3.1955 | 12 h Sebring | 41A | #AHS 3502 | McPherson / Fergus / Watts | Robt. H. Fergus | DNS |
| 13.3.1955 | 12 h Sebring | 42 | #AHS 3504 | Cooper / Jackson-Moore | Jack Cooper | 41st |
| 13.3.1955 | 12 h Sebring | 43 | #AHS 3503 | Fergusson / Keith | Jas. F. Fergusson | 32nd |
| 13.3.1955 | 12 h Sebring | 44 | #SPL 258BN | Moss / Macklin | Donald Healey Motor Co. | 6th |
| 13.3.1955 | 12 h Sebring | 45 | #AHS 3506 | Brewster / Rutan | Wm. Brewster | 15th |
| 13.3.1955 | 12 h Sebring | 46 | #AHS 3505 | Ehrman / Allen | Fred F. Allen | DNF |
| 26.3.1955 | BARC Goodwood [Handicap] | 41 | #AHS 3509 | David Shale | | 2nd |
| 2.4.1955 | British Empire Trophy | 23 | | Lance Macklin | L. Macklin | 14th |
| 2.4.1955 | British Empire Trophy | 24 | #AHS 3703 | Ron Flockhart | R. Flockhart | DNQ |
| 2.4.1955 | British Empire Trophy | 25 | #AHS 3509 | David Shale | D. Shale | DNQ |
| 2.4.1955 | British Empire Trophy | 33 | #AHS 3702 | John Dalton | J. Dalton | DNQ |
| 12.4.1955 | Goodwood Easter [S+2.0] | 88 | #AHS 3702 | John Dalton | J. F. Dalton | DNF |
| 12.4.1955 | Goodwood Easter [S+2.0] | 91 | #AHS 3703 | Ron Flockhart | R. Flockhart | 10th |
| 12.4.1955 | Goodwood Easter [S+2.0] | 92 | #AHS 3509 | David Shale | S&W Motors | 16th |
| 16.4.1955 | WJC Charterhall [S2.7/S1.5s] | 40 | #AHS 3703 | Ron Flockhart | R. Flockhart | DNA |
| 16.4.1955 | WJC Charterhall [S2.7/S1.5s] | 40 | #AHS 3703 | Ron Flockhart | R. Flockhart | 2nd |
| 16.4.1955 | WJC Charterhall [Sports] | 40 | #AHS 3703 | Ron Flockhart | R. Flockhart | 4th |
| 16.4.1955 | WJC Charterhall [Racing] | 40 | #AHS 3703 | Ron Flockhart | R. Flockhart | DNA |
| 16.4.1955 | WJC Charterhall [S2.7/S1.5s] | 52 | | Ted Evans | R. E. Evans | DNA |
| 30.4.1955 | National Ibsley [S+1.5] | 100 | | | | 8th |
| 1.5.1955 | SCCA National Bakersfield [S+1.5] | 3 | | Jack Duncan | Francis L. Lederer | 13th |
| 1.5.1955 | SCCA Regional Thompson [CM+DM] | 9 | #AHS 3505 | Traver McKenna | | 1st |
| 1.5.1955 | Preliminary Bakersfield [BM+CM+DM+EM+CP+DP] | 62 | #AHS 3508 | Bill Pringle | P. G. Gough | DNA |
| 1.5.1955 | SCCA National Bakersfield [S+1.5] | 62 | #AHS 3508 | Bill Pringle | P. G. Gough | 6th |
| 1.5.1955 | SCCA Regional Thompson [CM+DM] | 76 | #AHS 3507 | Vin Sardi | | 3rd |
| 1.5.1955 | Mille Miglia | 700 | #SPL 257BN | George Abecassis | | 11th |
| 1.5.1955 | Mille Miglia | 708 | #SPL 258BN | Lance Macklin | | 36th |
| 1.5.1955 | Mille Miglia | 709 | #AHS 3703 | Ron Flockhart | | DNF |
| 1.5.1955 | Mille Miglia | 712 | #SPL 256BN | Healey / Cashmore | | DNF |
| 1.5.1955 | Mille Miglia | 716 | | Verilli / Ferrari | | 88th |
| 8.5.1955 | GP Spa | 23 | | Christian Goethals | | raced |
| 14.5.1955 | ADMC Crimond [Production Handicap] | 8 | #AHS 3904 | Ted Evans | R. E. Evans | 4th |
| 14.5.1955 | ADMC Crimond [S2.7] | 8 | #AHS 3904 | Ted Evans | R. E. Evans | 3rd |
| 14.5.1955 | ADMC Crimond [Sports] | 8 | #AHS 3904 | Ted Evans | R. E. Evans | 4th |
| 14.5.1955 | MMKMC Silverstone [Sports Unlimited] | 120 | #AHS 3509 | David Shale | | 4th |
| 15.5.1955 | SCCA National Cumberland [CM+DM+EM] | 38 | #AHS 3501 | Bob Wittke | R. A. Wittke | 9th |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 38 | #AHS 3501 | Bob Wittke | R. A. Wittke | DNA |
| 15.5.1955 | SCCA National Cumberland [CM+DM+EM] | 100 | #AHS 3502 | Robert Fergus | R. H. Fergus | 8th |
| 15.5.1955 | SCCA National Cumberland [CM+DM+EM] | 250 | | Fergusson | J. Ferguson | 11th |
| 15.5.1955 | SCCA National Cumberland [CM+DM+EM] | 256 | #AHS 3505 | Traver McKenna | T. H. McKenna, Jr. | 10th |
| 15.5.1955 | Preliminary Cumberland [Novice 3.0] | 257 | #AHS 3507 | Vin Sardi | V. Sardi, Jr. | 2nd |
| 15.5.1955 | Preliminary Cumberland [Novice 3.0] | 272 | | George Bortin | G. Bortin | 12th |
| 29.5.1955 | SCCA Regional Thompson [CM+DM] | 13 | #AHS 3504 | Jackie Cooper | | 7th |
| 29.5.1955 | SCCA Regional Thompson [Match Race] | 13 | #AHS 3504 | Jackie Cooper | | 4th |
| 29.5.1955 | SCCA Regional Thompson [CM+DM] | 45 | #AHS 3506 | William Brewster | | 8th |
| 29.5.1955 | GP des Frontières | 54 | | Christian Goethals | | DNF |
| 29.5.1955 | SCCA Regional Thompson [CM+DM] | 122 | #AHS 3505 | Traver McKenna | | 5th |
| 29.5.1955 | SCCA Regional Thompson [CM+DM] | 257 | #AHS 3507 | Vin Sardi | | 3rd |
| 29.5.1955 | Santa Barbara [S+1.5] | 500 | | Ken Miles | | ?th |
| 30.5.1955 | National Davidstow [Sports Unlimited] | 19 | #AHS 3509 | David Shale | | 5th |
| 30.5.1955 | National Davidstow [Production] | 19 | #AHS 3509 | David Shale | | 3rd |
| 30.5.1955 | National Davidstow [S2.75] | 19 | #AHS 3509 | David Shale | | DNF |
| 30.5.1955 | National Davidstow [Production] | 49 | #AHS 3702 | John Dalton | | 2nd |
| 30.5.1955 | National Davidstow [S2.75] | 49 | #AHS 3702 | John Dalton | | raced |
| 30.5.1955 | National Davidstow [Sports Unlimited] | 49 | #AHS 3702 | John Dalton | | 1st |
| 5.6.1955 | Santa Rosa [S+1.5] | 3 | | Jack Duncan | F. Lederer | 6th |
| 12.6.1955 | 24 h Le Mans | 26 | #SPL 226B | Macklin / Leston | Lance Macklin | DNF |
| 18.6.1955 | Edenvale [Sports] | 7 | | Alan Millar | A. R. M. Millar | DNA |
| 18.6.1955 | Edenvale [Austin-Healey/TR2/XK120] | 7 | | Alan Millar | A. R. M. Millar | DNA |
| 18.6.1955 | Edenvale [Formula Libre] | 7 | | Alan Millar | A. R. M. Millar | 2nd |
| 18.6.1955 | GP Edenvale | 7 | | Alan Millar | A. R. M. Millar | 5th |
| 18.6.1955 | Edenvale [S3.0] | 7 | | Alan Millar | A. R. M. Millar | 2nd |
| 18.6.1955 | Edenvale [Formula Libre] | 13 | #AHS 3504 | Jackie Cooper | Jackie Cooper | DNA |
| 18.6.1955 | GP Edenvale | 13 | #AHS 3504 | Jackie Cooper | Jackie Cooper | DNA |
| 18.6.1955 | Edenvale [Sports] | 13 | #AHS 3504 | Jackie Cooper | Jackie Cooper | 2nd |
| 18.6.1955 | Edenvale [Austin-Healey/TR2/XK120] | 13 | #AHS 3504 | Jackie Cooper | Jackie Cooper | DNA |
| 18.6.1955 | Edenvale [S3.0] | 13 | #AHS 3504 | Jackie Cooper | Jackie Cooper | 4th |
| 18.6.1955 | Edenvale [Austin-Healey/TR2/XK120] | 63 | #AHS 3503 | Jim Fergusson | Jim Ferguson | DNA |
| 18.6.1955 | Edenvale [Sports] | 63 | #AHS 3503 | Jim Fergusson | Jim Ferguson | DNA |
| 18.6.1955 | Edenvale [Formula Libre] | 63 | #AHS 3503 | Jim Fergusson | Jim Ferguson | DNA |
| 18.6.1955 | Edenvale [S3.0] | 63 | #AHS 3503 | Jim Fergusson | Jim Ferguson | 1st |
| 18.6.1955 | GP Edenvale | 63 | #AHS 3503 | Jim Fergusson | Jim Ferguson | 2nd |
| 18.6.1955 | Preliminary Hansen Dam [Modified 3.0] | 100 | | Dave Allee | Clim Atwater | 2nd |
| 19.6.1955 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 50 | #AHS 3603 | Karl Kopplin | Karl Kopplin | ?th |
| 19.6.1955 | Hansen Dam [S+1.5] | 100 | | Dave Allee | Clim Atwater | DNA |
| 19.6.1955 | Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 100 | #AHS 3502 | Robert Fergus | Robt. Fergus | ?th |
| 19.6.1955 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 100 | #AHS 3502 | Robert Fergus | Robt. Fergus | ?th |
| 2.7.1955 | NSCC Oulton Park [S+2.0] | 28 | #AHS 3702 | John Dalton | John Dalton | 3rd |
| 2.7.1955 | NSCC Oulton Park [Production Sports Handicap] | 28 | #AHS 3702 | John Dalton | John Dalton | 1st |
| 3.7.1955 | Milwaukee [BM+CM+DM+EM+CP+DP+EP] | | #AHS 3603 | Karl Kopplin | | ?th |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 13 | #AHS 3504 | Jackie Cooper | | 13th |
| 4.7.1955 | SCCA National Beverly [BM+CM+DM+EM+CP] | 13 | #AHS 3504 | Jackie Cooper | | 14th |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 69 | #AHS 3505 | Traver McKenna | | 21st |
| 4.7.1955 | SCCA National Beverly [BM+CM+DM+EM+CP] | 135 | | Alan Millar | | 19th |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 135 | | Alan Millar | | 25th |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 137 | #AHS 3802 | John B. Mull | | 22nd |
| 4.7.1955 | SCCA National Beverly [BM+CM+DM+EM+CP] | 137 | #AHS 3802 | John B. Mull | | 26th |
| 10.7.1955 | WJC Charterhall [Racing Handicap] | 44 | #AHS 3904 | Ted Evans | (B. L. Carlaw) | 2nd |
| 10.7.1955 | WJC Charterhall [Sports Handicap] | 44 | #AHS 3904 | Ted Evans | (B. L. Carlaw) | raced |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 131 | | George Swift | Gene Sweeney | 8th |