| 4.7.1955 | Preliminary Beverly [CP+DP+EP] | | | | | raced |
| 9.7.1955 | Leinster Trophy | | | Bradshaw | | raced |
| 9.7.1955 | Leinster Trophy | | D-type | Desmond Titterington | Ecurie Ecosse | 9th |
| 9.7.1955 | Leinster Trophy | | | | Ecurie Ecosse | DNA |
| 9.7.1955 | Leinster Trophy | | C-type | Bill Smith | | DNF |
| 9.7.1955 | 6 h Relay Silverstone [Handicap] | | C-type | Dick Protheroe | Scratch Team | ?th |
| 9.7.1955 | Leinster Trophy | | XK120 | Mike Heather | | 5th |
| 9.7.1955 | Leinster Trophy | | XK120 | John Garvey | | raced |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 3 | XK120 M | Jerry Borden | Dr. Jerry Borden | DNA |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 3 | XK120 M | Jerry Borden | Dr. Jerry Borden | DNA |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 5 | XK120 M | Ned Yarter | Dr. H. C. Hoppe | 5th |
| 10.7.1955 | Preliminary Torrey Pines [Ladies+FIII] | 5 | XK120 M | H. C. Hoppe | Dr. H. C. Hoppe | 3rd |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 5 | XK120 M | Ned Yarter | Dr. H. C. Hoppe | 12th |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 18 | C-type | Tom Groskritz | Tom Groskritz, Jr. | DNF |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 44 | XK140 MC | Harry Garlick | Harry A. Garlick | 13th |
| 10.7.1955 | WJC Charterhall [Racing Handicap] | 47 | C-type | John Barber | J. Barber | DNA |
| 10.7.1955 | WJC Charterhall [Sports Handicap] | 47 | C-type | Rosemary Vickers | Mrs. A. D. N. Vickers | raced |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 54 | C-type | Jack Douglas | Jack Douglas | 11th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 60 | XK120 M | Hank Montonen | Henry J. Montonen | 12th |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 60 | XK120 M | Hank Montonen | Henry J. Montonen | 17th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 63 | XK120 M | Ignacio Lozano | Ignacio E. Lozano | DNA |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 63 | XK120 M | Ignacio Lozano | Ignacio E. Lozano | DNA |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 64 | XK120 M | Dick Figueroa | Dick Figueroa | 25th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 67 | XK120 | Howard Campbell | Howard Campbell | DNA |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 70 | C-type | Pete Woods | Pearce Woods | DNF |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 72 | XK140 MC | Rick Hey | | 4th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 94 | XK120 M | Robert Dikson, Jr. | Robert Dikson, Jr. | 9th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 99 | XK120 M | Ralph E. Phillips, Jr. | Ralph E. Phillips, Jr. | 23rd |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 102 | XK120 M | Dale Furlong | Dale A. Furlong, Jr. | 7th |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 102 | XK120 M | Dale Furlong | Dale Furlong, Jr. | DNA |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 105 | XK120 M | Howard Swift | | 21st |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 133 | XK140 MC | Jerry Austin | Jerry Austin | 7th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 133 | XK140 MC | Jerry Austin | Jerry Austin | 2nd |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 179 | XK120 M | Barry Monaghan | Pfc. Barry Monaghan | 15th |
| 10.7.1955 | Preliminary Torrey Pines [CP+DP+EP] | 189 | XK140 MC | Bob Weller | Bob Weller | 3rd |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 189 | XK140 MC | Bob Weller | Bob Weller | 8th |
| 16.7.1955 | British GP | 9 | D-type | Mike Hawthorn | Jaguar Cars Ltd. | 5th |
| 16.7.1955 | British GP | 11 | D-type | Duncan Hamilton | J. D. Hamilton | DNA |
| 16.7.1955 | British GP | 15 | D-type | Ninian Sanderson | Ec. Ecosse | 6th |
| 16.7.1955 | British GP | 17 | D-type | Ninian Sanderson | Ec. Ecosse | DNA |
| 16.7.1955 | British GP | 19 | D-type | Bob Berry | Jack Broadhead | 7th |
| 16.7.1955 | Munster [Formula Libre Handicap] | | XK120 | Mike Heather | | 1st |
| 24.7.1955 | Circuito de Lisboa | 6 | D-type | Duncan Hamilton | Duncan Hamilton | DNF |
| 24.7.1955 | 10 h Messina | | C-type | Margulies / Hill | Dan Margulies | DNF |
| 30.7.1955 | Crystal Palace International [Sports] | 83 | C-type | Boston / Protheroe | D. S. Boston | raced |
| 30.7.1955 | Crystal Palace International [Sports] | 84 | C-type | Peter Blond | P. Blond | 4th |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 54 | C-type | Jack Douglas | Jack Douglas | 6th |
| 31.7.1955 | SCCA National Seafair [CP+DP+EP] | 66 | XK120 M | Lou Skala | Lou W. Skala | DNA |
| 31.7.1955 | SCCA National Seafair [CP+DP+EP] | 68 | XK120 M | Jim Woods | James G. Woods | 5th |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 68 | XK120 M | Jim Woods | | 14th |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 69 | XK120 | Jim Clapp | James H. Clapp | DNA |
| 31.7.1955 | SCCA National Seafair [CP+DP+EP] | 81 | XK120 Convertible | Blythe T. Rogers | Blythe T. Rogers | 14th |
| 31.7.1955 | SCCA National Seafair [CP+DP+EP] | 85 | XK120 | Karl Stangl | | 6th |
| 31.7.1955 | SCCA National Seafair [CP+DP+EP] | 96 | XK120 M Coupe | Bob Byrd | Robert W. Byrd | 4th |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 96 | XK120 M Coupe | Bob Byrd | Robert W. Byrd | DNA |
| 31.7.1955 | SCCA National Seafair [CP+DP+EP] | 221 | XK140 M | Randy Francis | Fred W. Aston | DNA |
| 1.8.1955 | Brands Hatch International [S+1.9] | 47 | C-type | Boston / Protheroe | D. S. Boston | DNA |
| 1.8.1955 | Brands Hatch International [S+1.9] | 48 | C-type | Curt Lincoln | C. Lincoln | 3rd |
| 1.8.1955 | Brands Hatch International [S+1.9] | 49 | C-type | John Barber | Mrs. R. Vickers | DNF |
| 6.8.1955 | Charterhall International [Sports] | 74 | C-type | Rosemary Vickers | Mrs. A. D. N. Vickers | raced |
| 6.8.1955 | Charterhall International [Sports] | 75 | C-type | Jock Lawrence | J. K. Hunter | DNA |
| 6.8.1955 | Charterhall International [Sports] | 76 | C-type | Bill Smith | W. T. Smith | 5th |
| 6.8.1955 | Charterhall International [Sports] | 79 | C-type | Peter Blond | Peter Blond | DNA |
| 6.8.1955 | Charterhall International [Sports] | 82 | D-type | Desmond Titterington | Ecurie Ecosse | 1st |
| 6.8.1955 | Charterhall International [Invitation Race] | 82 | D-type | Desmond Titterington | Ecurie Ecosse | 2nd |
| 6.8.1955 | Charterhall International [Sports] | 83 | D-type | Ninian Sanderson | Ecurie Ecosse | 4th |
| 6.8.1955 | Charterhall International [Invitation Race] | 83 | D-type | Ninian Sanderson | Ecurie Ecosse | raced |
| 7.8.1955 | GP Sverige | 5 | D-type | Michael Head | Duncan Hamilton | 6th |
| 7.8.1955 | GP Sverige [Production/GT+2.0] | 23 | C-type | Curt Lincoln | Curt Lincoln | DNF |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 3 | XK120 M | Sid W. Blackman | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 3 | XK120 M | Sid W. Blackman | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 5 | XK120 | Leo Rizzo | | 8th |
| 13.8.1955 | Edenvale [S+3.0] | 5 | XK120 | Leo Rizzo | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 11 | XK140 MC | Richard McConnell | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 11 | XK140 MC | Richard McConnell | | 10th |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 29 | XK140 MC | Bob Bucher | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 29 | XK140 MC | Bob Bucher | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 54 | XK120 M | Don Stewart | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 54 | XK120 M | Don Stewart | | 15th |
| 13.8.1955 | Edenvale [S+3.0] | 58 | XK120 | D. Eckman | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 58 | XK120 | D. Eckman | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 88 | XK120 | Chris Eden | | 4th |
| 13.8.1955 | Edenvale [S+3.0] | 88 | XK120 | Chris Eden | | 2nd |
| 13.8.1955 | Snetterton International [Formula Libre] | 110 | D-type | Desmond Titterington | Ecurie Ecosse | 3rd |
| 13.8.1955 | Edenvale [S+3.0] | 111 | XK120 M | David Deuble | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 111 | XK120 M | David Deuble | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 112 | XK120 | B. A. Miske | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 112 | XK120 | B. A. Miske | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 116 | XK120 M | G. R. Rusznyak | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 116 | XK120 M | G. R. Rusznyak | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 120 | XK120 | | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 120 | XK120 | | | DNA |
| 13.8.1955 | Edenvale [S+3.0] | 124 | XK120 M | Hugh Sutherland | | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 124 | XK120 M | Hugh Sutherland | | 6th |
| 13.8.1955 | BARC Aintree [Closed Car Handicap] | | XK140 | G. Wood | | 2nd |
| 14.8.1955 | Snetterton International [S+1.5] | 85 | C-type | John Barber | Mrs. R. Vickers | raced |
| 14.8.1955 | Snetterton International [S+1.5] | 106 | C-type | Bill Smith | W. T. Smith | 3rd |
| 14.8.1955 | Snetterton International [S+1.5] | 107 | XK120 | John Ogier | J. Ogier | raced |
| 14.8.1955 | Snetterton International [S+1.5] | 108 | C-type | Dick Protheroe | D. Boston | raced |
| 14.8.1955 | Snetterton International [S+1.5] | 114 | C-type | John Hogg | J. Hogg | raced |