| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 1 | XK120 | Robert Beale | Robert Beale, Jr. | DNA |
| 5.7.1958 | National Open Crystal Palace | 42 | D-type | Reg Harris | J. C. Broadhead | raced |
| 5.7.1958 | National Open Crystal Palace | 43 | D-type | Jonathan Sieff | J. Sieff | raced |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 109 | | Frank Morrill | Frank Morrill | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 146 | XK120 M | Dave Ridenour | Dave Ridenour | DNA |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 185 | XK140 MC | Floyd Shannon | Floyd Shannon | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 1 | | Larry Albedi | Larry Albedi | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 1 | | Larry Albedi | Robert Beale | DNA |
| 6.7.1958 | Hammond [Main] | 12 | C-type | Mason O'Keiff | | DNF |
| 6.7.1958 | Hammond [BM+CM+DM+EM] | 12 | C-type | Mason O'Keiff | | DNF |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 26 | XK120 | R. T. Fawdington | R. T. Fawdington | raced |
| 6.7.1958 | BMRC Charterhall [BMRC Trophy Handicap] | 38 | D-type | Jim Clark | Border Reivers | 2nd |
| 6.7.1958 | BMRC Charterhall [Racing Handicap] | 38 | D-type | Jim Clark | Border Reivers | 1st |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 38 | D-type | Jimmy Somervail | Border Reivers | raced |
| 6.7.1958 | BMRC Charterhall [BMRC Trophy Handicap] | 62 | C-type | Gil Tyrer | G. Tyrer | 4th |
| 6.7.1958 | BMRC Charterhall [Racing Handicap] | 62 | C-type | Gil Tyrer | G. Tyrer | 3rd |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 62 | C-type | Gil Tyrer | G. Tyrer | 4th |
| 6.7.1958 | BMRC Charterhall [BMRC Trophy Handicap] | 65 | XK150 | Charles Ramsay | C. A. Ramsay | DNE |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 72 | XK120 | D. Ramsay | G. L. Crozier | DNA |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 72 | XK120 | Gordon Crozier | G. L. Crozier | DNA |
| 6.7.1958 | Hammond [Main] | 77 | D-type | C. K. Thompson | | 2nd |
| 6.7.1958 | Hammond [BM+CM+DM+EM] | 77 | D-type | C. K. Thompson | | 2nd |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 77 | XK140 | Andy Nielsen | Andy Nielsen | 4th |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 77 | | Andy Nielsen | Andy Nielsen | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 146 | XK120 M | Dave Ridenour | Dave Ridenour | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 185 | XK140 MC | Floyd Shannon | Floyd Shannon | 19th |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 194 | | Lawrence Hagin | Larry Hagin | DNA |
| 6.7.1958 | Baden Rock | | | Flaerti | | 3rd |
| 6.7.1958 | Preliminary Minneapolis [S+1.6] | | D-type | Don Skogmo | Don Skogmo | 1st |
| 6.7.1958 | Preliminary Minneapolis [Novice] | | D-type | John Barlass | Don Skogmo | 1st |
| 6.7.1958 | SCCA Regional Minneapolis [Main] | | D-type | Don Skogmo | Don Skogmo | 1st |
| 6.7.1958 | Baden Rock | | | Vilmor | | 5th |
| 12.7.1958 | BRSCC Full Sutton [SR] | 71 | D-type | Reg Harris | | 6th |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 71 | D-type | Reg Harris | | 8th |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 72 | C-type | Gil Tyrer | | 9th |
| 12.7.1958 | BRSCC Full Sutton [SR] | 72 | C-type | Gil Tyrer | | 7th |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 73 | D-type | Jim Clark | Border Reivers | 1st |
| 12.7.1958 | BRSCC Full Sutton [SR] | 73 | D-type | Jim Clark | Border Reivers | 1st |
| 12.7.1958 | BRSCC Full Sutton [SR] | 75 | D-type | Jonathan Sieff | | 2nd |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 75 | D-type | Jonathan Sieff | | 2nd |
| 12.7.1958 | BRSCC Full Sutton [SR] | 76 | C-type | B. Green | | 8th |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 76 | C-type | B. Green | | 6th |
| 12.7.1958 | AMOC Silverstone [S+1.5] | | C-type | Mike Salmon | | 6th |
| 13.7.1958 | LISCA Lime Rock [BP+CP] | 30 | XK140 MC | Bob Otten | | ?th |
| 13.7.1958 | LISCA Lime Rock [UR] | 62 | Special | Gerry Georgi | | 1st |
| 13.7.1958 | LISCA Lime Rock [BP+CP] | 97 | XK150 S | Bob Grossman | | raced |
| 19.7.1958 | GP Silverstone | 25 | D-type | Innes Ireland | Ecurie Ecosse | 9th |
| 19.7.1958 | 1 h Harewood Acres | | XK150 S | Ray Carter | Carter's British Cars | 2nd |
| 19.7.1958 | 1 h Harewood Acres | | XKSS | Don Stewart | | 3rd |
| 19.7.1958 | BEMC Harewood Acres [Modified +1.5] | | XKSS | Don Stewart | | raced |
| 19.7.1958 | BEMC Harewood Acres [Modified +1.5] | | XK150 S | Ray Carter | Carter's British Cars | ?th |
| 20.7.1958 | SCCA Regional Thompson [Modified+UR] | 7 | Special | Gerry Georgi | | 3rd |
| 20.7.1958 | SCCA Regional Thompson [BP+CP] | 13 | XK140 MC | Robert Ryan | | 6th |
| 20.7.1958 | SCCA Regional Thompson [BP+CP] | 19 | XK150 S | Bob Grossman | | raced |
| 20.7.1958 | SCCA Regional Thompson [Production] | 19 | XK150 S | Bob Grossman | | raced |
| 20.7.1958 | SCCA Regional Thompson [BP+CP] | 20 | XK120 | Bruce Cargill | | raced |
| 20.7.1958 | SCCA Regional Thompson [BP+CP] | 21 | XK140 MC | D. Smollen | | raced |
| 20.7.1958 | SCCA Regional Thompson [GT] | 41 | XK120 | Roly Heacox | | 9th |
| 20.7.1958 | SCCA Regional Thompson [Modified+UR] | 52 | C-type | Gordon MacKenzie | | ?th |
| 20.7.1958 | SCCA Regional Thompson [BP+CP] | 60 | XK150 S | Harry Carter | | 4th |
| 26.7.1958 | MCMC Oulton Park [Closed] | 2 | | Bill Allen | Bill Allen | DNA |
| 26.7.1958 | MCMC Oulton Park [Sports] | 20 | D-type | Reg Harris | J. C. Broadhead | 2nd |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 20 | D-type | Reg Harris | J. C. Broadhead | 4th |
| 26.7.1958 | MCMC Oulton Park [Closed] | 98 | XK120 | J. M. Bramall | Bramall | 2nd |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 98 | XK120 | J. M. Bramall | Bramall | raced |
| 26.7.1958 | MCMC Oulton Park [Closed] | 104 | XK140 | | | raced |
| 27.7.1958 | Snetterton | 76 | D-type | | | raced |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 1 | XK120 | Robert Beale | Robert Beale, Jr. | DNA |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 29 | | Al Laws | Al Laws | DNA |
| 3.8.1958 | SCCA Regional Shelton [S+1.5] | 51 | D-type | Jim Rattenbury | | DNA |
| 3.8.1958 | Preliminary Minden [Corvette+Porsche+Jaguar] | 100 | D-type | Ray Seher | Ray Seher | ?th |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 100 | D-type | Ray Seher | Ray Seher | DNA |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 105 | XK120 Roadster | George Heaney | George Heaney | 9th |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 185 | XK140 | Floyd Shannon | Floyd Shannon | DNA |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 204 | XK140 M | Clarence Seher | Clarence Seher | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 48 | D-type | Jim Clark | Border Reivers | 2nd |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 48 | D-type | Jim Clark | Border Reivers | 1st |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 52 | XK120 | Peter Sargent | P. J. Sargent | 3rd |
| 4.8.1958 | Autosport Mallory Park [PS+1.0] | 52 | XK120 | Peter Sargent | P. J. Sargent | DNA |
| 4.8.1958 | BRSCC Brands Hatch [S+1.9] | 81 | D-type | Jonathan Sieff | Jonathan Sieff | 6th |
| 4.8.1958 | BRSCC Brands Hatch [S+1.9] | 82 | C-type | Mike Salmon | Mike Salmon | raced |
| 4.8.1958 | BRSCC Brands Hatch [S+1.9] | 83 | C-type | Gordon Lee | Gordon Lee | raced |
| 10.8.1958 | WECC Snetterton | | C-type | Mike Salmon | | ?th |
| 16.8.1958 | Harewood Acres [Le Mans] | 8 | | Arvid J. Bradley | Arvid J. Bradley | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | 8 | | Arvid J. Bradley | Arvid J. Bradley | DNA |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 17 | XK150 S | Howard Quick | | 11th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 22 | XK140 MC | Tom Schelble | | 23rd |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 31 | XK140 MC | Dave Causey | | 14th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 34 | XK150 S | Thurman Smock | | 12th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 43 | XK140 MC | Dick Yoder | | 15th |
| 16.8.1958 | Harewood Acres [Le Mans] | 73 | XKSS | Don Stewart | Donald P. Stewart | 4th |
| 16.8.1958 | Harewood Acres [CP+DP] | 73 | XKSS | Don Stewart | Donald P. Stewart | 1st |
| 16.8.1958 | Harewood Acres [CP+DP] | 84 | XKSS | Ray Carter | Carter British Cars | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 84 | XKSS | Ray Carter | Carter British Cars | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 88 | XK120 | Ken Umpenhour | Astrid Umpenhour | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | 88 | XK120 | Ken Umpenhour | Astrid Umpenhour | ?th |
| 16.8.1958 | Harewood Acres [Le Mans] | 106 | Special | Rodger Dowd | R. Dowd | DNA |
| 16.8.1958 | Harewood Acres [SR] | 106 | Special | Rodger Dowd | R. Dowd | ?th |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 107 | XKSS | Tossie Alex | | 14th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 174 | | Roy Fleischman | | 20th |