| 28.1.1951 | GP Agadir [S+3.0] | | | André Guelfi | | 2nd |
| 25.2.1951 | Carrell Speedway [Main] | 1 | XK120 | Don Parkinson | | 1st |
| 25.2.1951 | Carrell Speedway [Main] | | XK120 | Bill Pollack | Bill Cramer | 3rd |
| 17.3.1951 | National Newtonards [Formula Libre] | | XK120 | Hubert Chambers | W. Tinsley | 4th |
| 18.3.1951 | GP Buenos Aires | 18 | XK120 | Roberto Mières | | DNF |
| 18.3.1951 | GP Buenos Aires | 24 | XK120 | Jorge Camaňo | | 9th |
| 18.3.1951 | GP Buenos Aires | 26 | XK120 | Lucio Bollaert | | 12th |
| 18.3.1951 | GP Buenos Aires | 28 | XK120 | Cesar Tesoriero | | 16th |
| 18.3.1951 | GP Buenos Aires | 38 | XK120 | Carlos Lostaló | | 14th |
| 18.3.1951 | GP Buenos Aires | 42 | | Jorge Dellepiane | | DNF |
| 18.3.1951 | GP Buenos Aires | 50 | XK120 | Francisco Ridder | | 19th |
| 26.3.1951 | Goodwood Easter [3rd Formula Libre Handicap] | 52 | XK120 | Bill Holt | | 5th |
| 26.3.1951 | Goodwood Easter [3rd Formula Libre Handicap] | 53 | XK120 | J. Rockman | | DNA |
| 26.3.1951 | Goodwood Easter [3rd Formula Libre Handicap] | 54 | XK120 | John Craig | | 3rd |
| 26.3.1951 | Goodwood Easter [3rd Formula Libre Handicap] | 55 | XK120 | George Wicken | | 2nd |
| 26.3.1951 | NSCC Gamston [Sports Handicap] | | XK120 | Hugh Howorth | | 2nd |
| 26.3.1951 | NSCC Gamston [S+2.5] | | XK120 | Hugh Howorth | | 2nd |
| 26.3.1951 | NSCC Gamston [Sports Handicap] | | XK120 | Peter Binns | | 3rd |
| 26.3.1951 | NSCC Gamston [S+2.5] | | | Phil Scragg | | 3rd |
| 31.3.1951 | National Castle Combe [S+2.0/1.5s] | | XK120 | L. Wood | | 3rd |
| 1.4.1951 | Main Palm Springs [Sports] | 5 | XK120 | Don Parkinson | | 4th |
| 1.4.1951 | Main Palm Springs [Sports] | 7 | XK120 | Elliot Forbes-Robinson | Bill Cramer | 3rd |
| 1.4.1951 | Main Palm Springs [Sports] | 8 | XK120 | Hastings-Harcourt / Daetwyler | Hastings-Harcourt | DNF |
| 21.4.1951 | BARC Goodwood [S+3.0] | | XK120 | L. Wood | | 2nd |
| 21.4.1951 | BARC Goodwood [S+3.0] | | XK120 | Phil Scragg | | 3rd |
| 21.4.1951 | BARC Goodwood [S+3.0] | | XK120 | Bill Holt | | 4th |
| 22.4.1951 | Thompson [Class 3+4] | | XK120 | Roger Wing | | 1st |
| 22.4.1951 | Thompson [Class 3+4] | | XK120 | Warren Collins | | 2nd |
| 22.4.1951 | Thompson [Class 3+4] | | XK120 | Dexter Coffin | | 3rd |
| 22.4.1951 | Thompson [Class 3+4] | | XK120 | Sherwood Johnston | | 3rd |
| 29.4.1951 | Mille Miglia | 421 | XK120 | Gatty / Fantuzzi | | DNF |
| 29.4.1951 | Mille Miglia | 429 | XK120 | Johnson / Lea | | DNF |
| 29.4.1951 | Mille Miglia | 432 | XK120 | Moss / Rainbow | Jaguar | DNF |
| 29.4.1951 | Mille Miglia | 437 | Special | Biondetti / Cortini | | DNF |
| 1.5.1951 | Liefering | 81 | | | J. B. Alkinson | raced |
| 5.5.1951 | Silverstone International [PS+2.0] | 25 | XK120 | Leslie Johnson | L. G. Johnson | 5th |
| 5.5.1951 | Silverstone International [PS+2.0] | 26 | XK120 | Stirling Moss | S. Moss | 1st |
| 5.5.1951 | Silverstone International [PS+2.0] | 27 | XK120 | Peter Walker | P. D. C. Walker | 15th |
| 5.5.1951 | Silverstone International [PS+2.0] | 28 | XK120 | Tommy Wisdom | T. H. Wisdom | 9th |
| 5.5.1951 | Silverstone International [PS+2.0] | 29 | XK120 | Oscar Moore | O. Moore | 14th |
| 5.5.1951 | Silverstone International [PS+2.0] | 30 | XK120 | Hamilton / Fotheringham-Parker | J. D. Hamilton | 3rd |
| 5.5.1951 | Silverstone International [PS+2.0] | 31 | XK120 | Neville Gee | G. N. Gee | 12th |
| 5.5.1951 | Silverstone International [PS+2.0] | 32 | XK120 | Bill Holt | E. W. Holt | 8th |
| 5.5.1951 | Silverstone International [PS+2.0] | 33 | XK120 | David Murray | D. Murray | DNS |
| 5.5.1951 | Silverstone International [PS+2.0] | 34 | XK120 | George Wicken | G. H. Wicken | 4th |
| 5.5.1951 | Silverstone International [PS+2.0] | 35 | XK120 | Dodson | J. G. Broadhead | 2nd |
| 6.5.1951 | Eläintarhanajo [Sports] | 15 | XK120 | Bergström | Leo Motzkin | 3rd |
| 6.5.1951 | Eläintarhanajo [Sports] | 22 | XK120 | S. P. J. Keinänen | | 1st |
| 6.5.1951 | Eläintarhanajo [Sports] | 62 | XK120 | Oscar Swahn | | 4th |
| 12.5.1951 | Giants' Despair Hillclimb | 12 | XK120 | Farago | Herbert W. Hart | 23rd |
| 12.5.1951 | Giants' Despair Hillclimb | 17 | XK120 | Bob Reider | Bob Reider | 7th |
| 12.5.1951 | Giants' Despair Hillclimb | 37 | XK120 | Sherwood Johnston | Sherwood Johnson | 13th |
| 12.5.1951 | Giants' Despair Hillclimb | 38 | XK120 | Dick Irish | Richard H. Irish | 9th |
| 12.5.1951 | Giants' Despair Hillclimb | 39 | XK120 | Hector Scheffer | Hector S. Scheffer | 10th |
| 12.5.1951 | Giants' Despair Hillclimb | 59 | XK120 | Lewis Flink | Lewis Flink | 26th |
| 12.5.1951 | Giants' Despair Hillclimb | 66 | XK120 | Roger Merrill | Roger Merrill, Jr. | 12th |
| 12.5.1951 | Giants' Despair Hillclimb | 69 | XK120 | C. Thompson | C. D. Thompson | 19th |
| 12.5.1951 | Giants' Despair Hillclimb | 70 | XK120 | Gordon Lipe | Gordon C. Lipe | 3rd |
| 12.5.1951 | Giants' Despair Hillclimb | 75 | XK120 | Bill Fleming | George W. Fleming | 5th |
| 12.5.1951 | Giants' Despair Hillclimb | 76 | XK120 | George E. Tierney | George E. Tierney | 20th |
| 12.5.1951 | Giants' Despair Hillclimb | 81 | XK120 | Logan Hill | Logan Hill | 14th |
| 12.5.1951 | National Castle Combe [Unlimited] | | XK120 | Peter Binns | | 3rd |
| 14.5.1951 | SHMC Gamston [Unlimited] | | XK120 | Bill Holt | | 3rd |
| 14.5.1951 | SHMC Gamston [Unlimited] | | XK120 | Hugh Howorth | | 2nd |
| 19.5.1951 | National Crimond [Sports] | | | Ian Stewart | | 1st |
| 19.5.1951 | National Crimond [Sports] | | XK120 | D. G. Duncan | | 3rd |
| 20.5.1951 | Phoenix Park [Formula Libre Handicap Heat 2] | | XK120 | W. Tinsley | | 1st |
| 20.5.1951 | Phoenix Park [Formula Libre Handicap Heat 2] | | XK120 | Maurice Carey | | 4th |
| 26.5.1951 | WECC Boreham [S+2.5] | | XK120 | Peter Binns | | 4th |
| 26.5.1951 | Preis von Bremgarten | | XK120 | | | raced |
| 26.5.1951 | WECC Boreham [S+2.5] | | XK120 | D. Pierpoint | | 3rd |
| 26.5.1951 | Preis von Bremgarten | | XK120 | Scherrer | | raced |
| 26.5.1951 | WECC Boreham [Unlimited] | | XK120 | Hugh Howorth | | 3rd |
| 26.5.1951 | Preis von Bremgarten | | XK120 | | | raced |
| 26.5.1951 | WECC Boreham [S+2.5] | | XK120 | Hugh Howorth | | 1st |
| 27.5.1951 | SCCA National Pebble Beach [Handicap] | 4 | XK120 | Bill Breeze | | 7th |
| 27.5.1951 | SCCA National Pebble Beach Cup | 4 | XK120 | Bill Breeze | | 3rd |
| 27.5.1951 | SCCA National Pebble Beach Cup | 8 | XK120 | Dick Jackson | Hastings-Harcourt | DNS |
| 27.5.1951 | Preliminary Pebble Beach [Novice] | 8 | XK120 | Dick Jackson | Hastings Harcourt | 1st |
| 27.5.1951 | SCCA National Pebble Beach [Handicap] | 23 | XK120 | Bob Menefee | | 12th |
| 27.5.1951 | SCCA National Pebble Beach Cup | 23 | XK120 | Bob Menefee | | 34th |
| 27.5.1951 | Preliminary Pebble Beach [Novice] | 23 | XK120 | Bob Menefee | | 4th |
| 27.5.1951 | SCCA National Pebble Beach [Handicap] | 60 | XK120 | Don Parkinson | | DNS |
| 27.5.1951 | SCCA National Pebble Beach Cup | 60 | XK120 | Don Parkinson | | DNS |
| 27.5.1951 | SCCA National Pebble Beach Cup | 89 | XK120 | Jackie Cooper | | 6th |
| 27.5.1951 | SCCA National Pebble Beach [Handicap] | 89 | XK120 | Jackie Cooper | | 26th |
| 2.6.1951 | Ulster Trophy [Formula Libre Handicap] | 60 | XK120 | Louis Chiron | W. Tinsley | raced |
| 2.6.1951 | Ulster Trophy [Formula Libre Handicap] | 68 | XK120 | A. E. Macgregor | | DNA |
| 2.6.1951 | 8 Clubs Silverstone [Handicap] | | XK120 | Hugh Howorth | | 3rd |
| 2.6.1951 | 8 Clubs Silverstone [Scratch] | | XK120 | Hugh Howorth | | 1st |
| 3.6.1951 | Coppa della Toscana | | | Clemente Biondetti | | 4th |
| 9.6.1951 | 100 mile Bridgehampton | 86 | XK120 | Logan Hill | | DNF |