| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 1 | XK120 M | Richard Perrin | | 1st |
| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 49 | XK120 M | George Constantine | | 2nd |
| 29.5.1955 | SCCA Regional Thompson [FM+CP] | 73 | XK120 | Gordon MacKenzie | | 2nd |
| 29.5.1955 | SCCA Regional Thompson [FM+CP] | 77 | XK120 | Don McComb | | 6th |
| 29.5.1955 | SCCA Regional Thompson [FM+CP] | 79 | XK120 | P. Turchen | | 7th |
| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 85 | XK120 M | John B. Mull | | 5th |
| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 86 | XK120 M | Ed Droesch | | 9th |
| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 93 | XK140 MC | Keene Annis | | 6th |
| 29.5.1955 | Santa Barbara [S+1.5] | 119 | XK120 | Kudler | | raced |
| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 143 | XK120 M | Richard Kessler | | 4th |
| 29.5.1955 | SCCA Regional Thompson [Jaguar] | 148 | XK120 M | Michael Caldwell | | 10th |
| 29.5.1955 | Santa Barbara [S+1.5] | | XK120 M | Barry Monaghan | | ?th |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 11 | XK140 MC | Loyal Katskee | Loyal Katskee | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 12 | C-type | Loyal Katskee | Loyal Katskee | 1st |
| 30.5.1955 | Iowa [Ladies] | 12 | C-type | Virginia Katskee | Loyal Katskee | 2nd |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 15 | XK120 | John A. Weber | Sid Ackerman | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 15 | XK120 | Sid Ackerman | Sid Ackerman | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 15 | XK120 | Sid Ackerman | Sid Ackerman | DNA |
| 30.5.1955 | National Davidstow [Formula Libre Handicap] | 15 | C-type | Gil Tyrer | | 2nd |
| 30.5.1955 | National Davidstow [Production] | 15 | C-type | Gil Tyrer | | 1st |
| 30.5.1955 | National Davidstow [Sports Unlimited] | 15 | C-type | Gil Tyrer | | 3rd |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 17 | XK120 | Clifford Brenna | Cliff Brenna | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 17 | XK120 | Clifford Brenna | Cliff Brenna | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 23 | XK120 M | Jerry Hardesty | Jerry Hardesty | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 23 | XK120 M | Jerry Hardesty | Jerry Hardesty | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 23 | XK120 M | Jerry Hardesty | Jerry Hardesty | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 29 | XK120 M | Howard Andreasen | Howard Andreasen | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 29 | XK120 M | Howard Andreasen | Howard Andreasen | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 29 | XK120 M | Howard Andreasen | Howard Andreasen | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 33 | XK120 M | John Kilborn | John Kilborn | raced |
| 30.5.1955 | Iowa [Ladies] | 33 | XK120 M | Jean Kilborn | John Kilborn | raced |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 33 | XK120 M | John Kilborn | John Kilborn | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 50 | XK120 M | Karl Kopplin | Karl Kopplin | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 50 | XK120 M | Karl Kopplin | Karl Kopplin | DNA |
| 30.5.1955 | Whitsun Goodwood [Sports] | 55 | D-type | Duncan Hamilton | Duncan Hamilton | 1st |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 55 | D-type | Duncan Hamilton | Duncan Hamilton | 1st |
| 30.5.1955 | Iowa [Novice +1.5] | 56 | XK120 M | Eugene Kent | Eugene Kent | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 56 | XK120 M | Eugene Kent | Eugene Kent | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 56 | XK120 M | Eugene Kent | Eugene Kent | DNA |
| 30.5.1955 | Whitsun Goodwood [Sports] | 56 | D-type | Bob Berry | Jack Broadhead | 2nd |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 56 | D-type | Bob Berry | Jack Broadhead | 2nd |
| 30.5.1955 | Whitsun Goodwood [Sports] | 57 | C-type | Michael Head | M. Head | DNS |
| 30.5.1955 | Iowa [Novice +1.5] | 57 | XK120 M | Jack Boone | Jack Boone | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 57 | XK120 M | Jack Boone | Jack Boone | DNA |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 57 | C-type | Michael Head | M. Head | 6th |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 57 | XK120 M | Jack Boone | Jack Boone | DNA |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 58 | C-type | Dick Protheroe | D. S. Boston | 3rd |
| 30.5.1955 | Whitsun Goodwood [Sports] | 58 | C-type | Dick Protheroe | D. S. Boston | raced |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 59 | XK120 M | Harry Lydick, Jr. | Harry Lydick, Jr. | DNA |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 59 | C-type | Peter Blond | P. Blond | 4th |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 59 | XK120 M | Harry Lydick, Jr. | Harry Lydick, Jr. | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 59 | XK120 M | Harry Lydick, Jr. | Harry Lydick, Jr. | DNA |
| 30.5.1955 | Whitsun Goodwood [Sports] | 59 | C-type | Peter Blond | P. Blond | 6th |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 60 | XK120 | Earl of Northesk | | DNF |
| 30.5.1955 | Whitsun Goodwood [S+2.0] | 61 | XK120 | R. H. R. Thomas | R. H. R. Thomas | 14th |
| 30.5.1955 | Whitsun Goodwood [Sports] | 61 | XK120 | R. H. R. Thomas | R. H. R. Thomas | raced |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 72 | XK140 | William Peters | William Peters | DNA |
| 30.5.1955 | Iowa [Ladies] | 72 | XK140 | Monica Peters | William Peters | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 72 | XK140 | William Peters | William Peters | 3rd |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 73 | XK120 M | Bill Larson | William Larson | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 73 | XK120 M | Bill Larson | William Larson | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 77 | XK120 M | Bruce Carson | Bruce Carson | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 77 | XK120 M | Bruce Carson | Bruce Carson | DNA |
| 30.5.1955 | Iowa [Ladies] | 82 | XK120 M | Carol Komisar | Carol Komisar | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 85 | XK120 M | Jack Kisner | Jack Kisner | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 85 | XK120 M | Jack Kisner | Jack Kisner | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 85 | XK120 M | Jack Kisner | Jack Kisner | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 86 | XK140 MC | Jack Furst | Jack Furst | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 86 | XK140 MC | Jack Furst | Jack Furst | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 86 | XK140 MC | Jack Furst | Jack Furst | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 91 | XK120 M | Dean Kemmerer | Dean Kemmerer | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 91 | XK120 M | Dean Kemmerer | Dean Kemmerer | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 91 | XK120 M | Dean Kemmerer | Dean Kemmerer | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 95 | XK140 MC | Jim Jeffords | James Jeffords | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 95 | XK140 MC | Jim Jeffords | James Jeffords | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 100 | XK120 M | Ruth Levy | Ruth Levy (Chris Tanida) | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 100 | XK120 M | Ruth Levy | Ruth Levy (Chris Tanida) | DNA |
| 30.5.1955 | Iowa [Ladies] | 100 | XK120 M | Ruth Levy | Ruth Levy (Chris Tanida) | 1st |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 102 | XK120 | Herman Guttman | Herman Guttman | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 102 | XK120 | Herman Guttman | Herman Guttman | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 113 | XK120 M | David Mott | Dave Mott | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 113 | XK120 M | David Mott | Dave Mott | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 115 | XK120 M | B. D. Super | B. D. Super | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 115 | XK120 M | B. D. Super | B. D. Super | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 115 | XK120 M | B. D. Super | B. D. Super | DNA |
| 30.5.1955 | Iowa [Ladies] | 118 | XK120 | Mrs. A. J. Roy | Mrs. A. J. Roy | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 141 | XK140 MC | John Collins | John Collins | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 141 | XK140 MC | John Collins | John Collins | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 144 | XK120 | Daniel Lang | Daniel Lang | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 144 | XK120 | Daniel Lang | Daniel Lang | DNA |
| 30.5.1955 | Iowa [BM+CM+DM+EM+CP+DP+EP] | 171 | XK140 MC | Ralph Miller | Ralph Miller | DNA |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 171 | XK140 MC | Ralph Miller | Ralph Miller | DNA |
| 30.5.1955 | Iowa [Novice +1.5] | 171 | XK140 MC | Ralph Miller | Ralph Miller | 1st |
| 5.6.1955 | Novice Santa Rosa [S+1.5] | 59 | XK120 | L. Bamert | | 8th |
| 5.6.1955 | Santa Rosa [S+1.5] | 70 | XK120 | Fred Block | | 18th |
| 5.6.1955 | Santa Rosa [Production +3.0] | 82 | XK120 | Greg Teaby | | 4th |
| 5.6.1955 | Novice Santa Rosa [S+1.5] | 105 | XK120 M | George Heaney | | 10th |
| 5.6.1955 | Santa Rosa [Production +3.0] | 147 | XK140 MC | Don Levinson | | 5th |
| 5.6.1955 | Santa Rosa [S+1.5] | 147 | XK140 MC | Don Levinson | | 15th |
| 5.6.1955 | Santa Rosa [S+1.5] | 150 | C-type | Jack Douglas | | 11th |