| 9.3.1958 | Preliminary Boca Raton [CM+DM+EM+FM+GM] | 17 | #XKD 560 | Jack Ensley | | raced |
| 22.3.1958 | 12 h Sebring | 8 | #XKD 504 | Sanderson / Bueb | Ecurie Ecosse | DNF |
| 22.3.1958 | 12 h Sebring | 9 | #XKD 603 | Flockhart / Gregory | Ecurie Ecosse | DNF |
| 22.3.1958 | 12 h Sebring | 12 | | Cunningham / Hansgen | Alfred Momo | DNF |
| 22.3.1958 | 12 h Sebring | | #XKD 538 | Jack Ensley | Jack Ensley | DNA |
| 30.3.1958 | SCC-BC Abbotsford [Main] | 51 | #XKD 558 | Rattenbury | | 1st |
| 30.3.1958 | SCC-BC Abbotsford [Modified +1.5] | 51 | #XKD 558 | Rattenbury | | 1st |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 92 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 5.4.1958 | BRSCC Full Sutton [Formula Libre] | 92 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 7.4.1958 | Sussex Trophy Goodwood | 69 | #XKD 601 | Duncan Hamilton | | 3rd |
| 7.4.1958 | Sussex Trophy Goodwood | 79 | #XKD 502 | Maurice Charles | | 6th |
| 12.4.1958 | Grand Central [R+1.4] | 3 | #XKD 512 | Jimmy de Villiers | | 1st |
| 12.4.1958 | Grand Central [Sports] | 3 | #XKD 512 | Jimmy de Villiers | | 1st |
| 12.4.1958 | Grand Central [1820 Settlers] | 3 | #XKD 512 | Jimmy de Villiers | | 3rd |
| 12.4.1958 | British Empire Trophy | 60 | #XKC 403 | Peter Blond | J. C. Broadhead | DNF |
| 12.4.1958 | British Empire Trophy | 69 | #XKC 406 | James Forbes Clark | J. F. Clark | DNQ |
| 12.4.1958 | British Empire Trophy | 74 | #XKD 601 | Duncan Hamilton | J. Duncan Hamilton | 4th |
| 12.4.1958 | British Empire Trophy | 75 | #XKD 518 | Jonathan Sieff | J. Sieff | DNQ |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 127 | #XKD 519 | Bill Krause | Bill Krause | 6th |
| 19.4.1958 | Aintree 200 [S+1.1] | 76 | #XKD 606 | Ivor Bueb | Ecurie Ecosse | 4th |
| 19.4.1958 | Aintree 200 [S+1.1] | 77 | #XKD 501 | Jack Fairman | Ecurie Ecosse | 7th |
| 19.4.1958 | Aintree 200 [S+1.1] | 78 | | Duncan Hamilton | Duncan Hamilton | 6th |
| 19.4.1958 | Aintree 200 [S+1.1] | 79 | #XKD 502 | Maurice Charles | Maurice Charles Motors Ltd. | 12th |
| 19.4.1958 | Aintree 200 [S+1.1] | 80 | #XKD 518 | Jonathan Sieff | Jonathan Sieff | 14th |
| 19.4.1958 | Aintree 200 [S+1.1] | 82 | | Jimmy Somervail | Border Reivers | DNA |
| 19.4.1958 | Aintree 200 [S+1.1] | 83 | #XKD 517 | Jim Clark | Border Reivers | DNA |
| 20.4.1958 | San Salvador | 1 | | Mauricio Miranda | Mauricio L. Miranda | DNF |
| 20.4.1958 | SCCA National Marlboro [BM+CM+DM+EM+FM] | 61 | | Ed Crawford | Briggs Cunningham | 4th |
| 20.4.1958 | SCCA National Marlboro [BM+CM+DM+EM+FM] | 189 | | Jim Robinson | | DNF |
| 26.4.1958 | Preliminary Louisville [Novice] | | | | | raced |
| 27.4.1958 | WJC Charterhall [S+1.5] | 41 | #XKD 517 | Jimmy Somervail | Border Reivers | ?th |
| 27.4.1958 | WJC Charterhall [R/S+500] | 41 | #XKD 517 | Jim Clark | Border Reivers | DNF |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 49 | #XKD 545 | George Constantine | | DNA |
| 27.4.1958 | WJC Charterhall [R/S+500] | 57 | #XKC 403 | Reg Harris | J. C. Broadhead | raced |
| 27.4.1958 | WJC Charterhall [S+1.5] | 57 | #XKC 403 | Reg Harris | J. C. Broadhead | ?th |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | | | Jack Ensley | | raced |
| 27.4.1958 | Preliminary Louisville [BM+CM+DM+EM+FM+GM] | | | Jack Ensley | | 4th |
| 3.5.1958 | Daily Express Silverstone [S+1.5] | | #XKD 504 | Jack Fairman | Ecurie Ecosse | raced |
| 3.5.1958 | Daily Express Silverstone [S+1.5] | | | Duncan Hamilton | | 7th |
| 3.5.1958 | Daily Express Silverstone [S+1.5] | | | Innes Ireland | | 8th |
| 3.5.1958 | Daily Express Silverstone [S+1.5] | | | Ivor Bueb | | 6th |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 49 | #XKD 545 | George Constantine | | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 49 | #XKD 545 | George Constantine | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 60 | | Walt Hansgen | Briggs Cunningham | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 60 | | Walt Hansgen | Briggs Cunningham | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 189 | | Jim Robinson | | 8th |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 189 | | Jim Robinson | | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 27 | #XKD 519 | Bill Krause | Arnold Krause | DNS |
| 11.5.1958 | Hawaii [Match] | 27 | #XKD 519 | Bill Krause | Arnold Krause | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 78 | #XKD 528 | Carlyle Blackwell | Carlyle Blackwell | DNA |
| 11.5.1958 | Hawaii [Match] | 78 | #XKD 528 | Carlyle Blackwell | Carlyle Blackwell | DNA |
| 15.5.1958 | Aspern [S+1.5] | 2 | #XKD 518 | Jonathan Sieff | Jonathan Sieff | DNF |
| 15.5.1958 | Eläintarhanajo | 13 | #XKD 530 | Bjarne Rehn | Scuderia Askolin | 6th |
| 17.5.1958 | Chester | | | C. K. Thompson | | 2nd |
| 18.5.1958 | GP Spa | 18 | #XKD 606 | Ivor Bueb | Ecurie Ecosse | 4th |
| 18.5.1958 | GP Spa | 19 | #XKD 603 | Jack Fairman | Ecurie Ecosse | 7th |
| 18.5.1958 | GP Spa | 20 | #XKD 517 | Jim Clark | Border Reivers | 8th |
| 18.5.1958 | GP Spa | 21 | #XKD 502 | Maurice Charles | | DNA |
| 18.5.1958 | SCCA National Cumberland [BM+CM+DM] | 49 | #XKD 545 | George Constantine | Roberts Harrison | 4th |
| 18.5.1958 | SCCA National Cumberland [BM+CM+DM] | 62 | | Briggs Cunningham | Briggs S. Cunningham | DNA |
| 18.5.1958 | LISCA Lime Rock [UR+CP] | | | Bruce Boyle | | ?th |
| 24.5.1958 | BRSCC Full Sutton [SR/R] | 92 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 24.5.1958 | BRSCC Full Sutton [SR] | 92 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 24.5.1958 | BRSCC Full Sutton [SR] | 125 | #XKC 403 | Reg Harris | | 4th |
| 24.5.1958 | BRSCC Full Sutton [SR/R] | 125 | #XKC 403 | Reg Harris | | 3rd |
| 24.5.1958 | Whitsun Goodwood | | | Duncan Hamilton | | 2nd |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 18 | #XKD 528 | Carlyle Blackwell | Carlyle Blackwell | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 127 | #XKD 519 | Bill Krause | Bill Krause | DNA |
| 1.6.1958 | 1000 km Nürburgring | 8 | #XKD 504 | Bueb / Sanderson | Ecurie Ecosse | DNF |
| 1.6.1958 | 1000 km Nürburgring | 9 | #XKD 603 | Gregory / Flockhart | Ecurie Ecosse | DNF |
| 1.6.1958 | 1000 km Nürburgring | 10 | #XKD 501 | Fairman / Lawrence | Ecurie Ecosse | 9th |
| 1.6.1958 | Santa Barbara [BM+CM+DM+EM] | 18 | #XKD 528 | Carlyle Blackwell | Carlyle Blackwell | 7th |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 49 | #XKD 545 | George Constantine | George Constantine | DNF |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 62 | | Briggs Cunningham | Briggs Cunningham | 10th |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 80 | #XKD 529 | Harry Carter | | 4th |
| 1.6.1958 | Santa Barbara [BM+CM+DM+EM] | 127 | #XKD 519 | Bill Krause | Bill Krause | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 46 | #XKD 518 | Jonathan Sieff | Jonathan Sieff | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 46 | #XKD 518 | Jonathan Sieff | Jonathan Sieff | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 46 | #XKD 518 | Jonathan Sieff | Jonathan Sieff | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 138 | #XKC 403 | Reg Harris | J. C. Broadhead | 4th |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 138 | #XKC 403 | Reg Harris | J. C. Broadhead | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 138 | #XKC 403 | Reg Harris | J. C. Broadhead | DNF |
| 8.6.1958 | SCCA Regional Thompson [BM+CM+EM+FM] | 49 | #XKD 545 | George Constantine | | 8th |
| 8.6.1958 | SCCA Regional Thompson [BM+CM+EM+FM] | 180 | #XKD 529 | Harry Carter | | 1st |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 49 | #XKD 545 | George Constantine | George Constantine | DNF |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 100 | #XKD 531 | Ray Seher | | 8th |
| 21.6.1958 | ADMC Crimond [Fastest Handicap] | 1 | #XKD 517 | Jim Clark | Border Reivers | raced |
| 21.6.1958 | ADMC Crimond [Sports] | 1 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 3 | #XKD 536 | Don Skogmo | Don R. Skogmo | 10th |
| 22.6.1958 | 24 h Le Mans | 6 | #XKD 603 | Fairman / Gregory | Ecurie Ecosse | DNF |
| 22.6.1958 | 24 h Le Mans | 7 | #XKD 504 | Sanderson / Lawrence | Ecurie Ecosse | DNF |
| 22.6.1958 | 24 h Le Mans | 8 | #XKD 601 | Bueb / Hamilton | J. Duncan Hamilton | DNF |
| 22.6.1958 | 24 h Le Mans | 11 | #XKD 513 | Guelfi / "Mary" | Henri Peignaux | DNF |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 17 | | Jack Ensley | Jack R. Ensley | DNA |
| 22.6.1958 | 24 h Le Mans | 57 | #XKD 502 | Charles / Young | Maurice Charles | DNF |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 53 | | William Kinchloe | | DNF |
| 29.6.1958 | WJC Charterhall [Racing] | 38 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 29.6.1958 | WJC Charterhall [S+1.5] | 38 | #XKD 517 | Jim Clark | Border Reivers | 1st |
| 5.7.1958 | National Open Crystal Palace | 42 | #XKC 403 | Reg Harris | J. C. Broadhead | raced |
| 5.7.1958 | National Open Crystal Palace | 43 | #XKD 518 | Jonathan Sieff | J. Sieff | raced |