| 5.4.1958 | BRSCC Full Sutton [SR/R] | 79 | | David Howard | | 6th |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 95 | T33 | Colin Murray | | 5th |
| 7.4.1958 | National Brands Hatch [Formula Libre] | 1 | Norton | Alan Cowley | Alan Cowley | raced |
| 7.4.1958 | National Brands Hatch [S1.1] | 45 | T39 | Godfrey Lambert | Godfrey Lambert | raced |
| 7.4.1958 | National Brands Hatch [S1.1] | 46 | T39 | Don Rickman | Don Rickman | 2nd |
| 7.4.1958 | National Brands Hatch [Formula Libre] | 102 | | J. Turner | A. Brown | raced |
| 12.4.1958 | Grand Central [R+1.4] | 1 | | Dick Gibson | | raced |
| 12.4.1958 | Grand Central [1820 Settlers] | 1 | | Dick Gibson | | 1st |
| 12.4.1958 | Grand Central [R+1.4] | 9 | | Ian Fraser Jones | | 5th |
| 12.4.1958 | Grand Central [1820 Settlers] | 9 | | Ian Fraser Jones | | 4th |
| 12.4.1958 | British Empire Trophy | 63 | T33 | Colin Murray | Colin Murray | DNQ |
| 12.4.1958 | British Empire Trophy | 67 | T38 | Peter Mould | Peter Mould | DNQ |
| 13.4.1958 | SCCA Regional Palm Springs [FM+GM+HM] | 4 | | Reventlow | Lance Reventlow | 2nd |
| 13.4.1958 | SCCA Regional Palm Springs [FM+GM+HM] | 136 | | John Biehl | John Biehl | 9th |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 188 | | Jack McAfee | Stan Sugarman | 7th |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 221 | | Ron Ellico | | 13th |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 221 | | Ron Ellico | | DNA |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 510 | 500 | Jean Geslin | Joe Lubin | 1st |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 512 | 500 | Jack Brink | | 3rd |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 521 | 500 | Rolf Roth | | DNF |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 525 | 500 | Robert Myers | | 11th |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 538 | 500 | Bill Love | Joe Lubin | DNA |
| 19.4.1958 | Aintree 200 [S+1.1] | 81 | T38 | Peter Mould | Peter Mould | DNF |
| 20.4.1958 | Preliminary Galveston [FM+GM+HM] | 52 | | Jack Martin | | 5th |
| 20.4.1958 | BRSCC Brands Hatch [S1.1] | | T39 | Tony Hegbourne | | 1st |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 0 | 500 | P. Dermott | | 18th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 19 | 500 | Jim Haynes | | 3rd |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 24 | 1100 | Paul Bleustein | | 17th |
| 27.4.1958 | WJC Charterhall [R/S+500] | 56 | | Philip Dann | P. B. Dann | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 56 | | Philip Dann | P. B. Dann | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 69 | 500 | James Stevens | | DNF |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 77 | 500 Mark XI | Mike Wood | | 8th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 114 | 500 | Paul Richards | | 5th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 153 | 500 | Lex duPont | | 9th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 159 | 500 | | | 10th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 174 | 500 | George Alderman | | 19th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 176 | 500 | Harry Whitney | | 7th |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 711 | 500 | John Briggs | | DNF |
| 27.4.1958 | SCCA Regional Louisville [MGA+GP+HM+Sedan] | | 500 | Gene Cates | | 3rd |
| 27.4.1958 | BARC Goodwood [S1.5] | | | Chris Bristow | | raced |
| 27.4.1958 | WJC Charterhall [R/S+500] | | | Norman Barclay | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 55 | T39 | Fred Sclavi | | DNA |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 55 | T39 | Fred Sclavi | | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 116 | | Lance Reventlow | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 116 | | Lance Reventlow | | DNA |
| 11.5.1958 | Hawaii [S1.6] | 6 | | Richie Ginther | Scuderia Encina | 3rd |
| 11.5.1958 | Hawaii [Match] | 6 | | Bill Woodward | Scuderia Encina | DNA |
| 11.5.1958 | Hawaii [Locals] | 6 | | Bill Woodward | Scuderia Encina | 5th |
| 11.5.1958 | Hawaii [S1.6] | 39 | | Ron Elico | Ron Elico | DNA |
| 11.5.1958 | Hawaii [Match] | 39 | | Ron Elico | Ron Elico | DNA |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 85 | 500 | Leon Becker | Dr. Leon Becker | DNA |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 98 | 500 | Bob Korst | Bob Korst | 2nd |
| 11.5.1958 | Hawaii [S1.6] | 221 | | Ron Ellico | | 2nd |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 36 | | Bark Henry | Mrs. Harry Clark Boden | DNA |
| 24.5.1958 | BRSCC Full Sutton [SR] | 38 | T14 | J. B. Brierley | | 14th |
| 24.5.1958 | BRSCC Full Sutton [SR/R] | 89 | T33 | Colin Murray | | 4th |
| 24.5.1958 | BRSCC Full Sutton [SR] | 89 | T33 | Colin Murray | | 3rd |
| 24.5.1958 | BRSCC Full Sutton [SR] | 91 | T38 | Peter Mould | | 8th |
| 24.5.1958 | BRSCC Full Sutton [SR/R] | 91 | T38 | Peter Mould | | 7th |
| 25.5.1958 | National Open Crystal Palace [S1.1] | | | Ray Thackwell | | 6th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 24 | | Bluebelle Gibbs | Mrs. R. Bluebelle Gibbs | DNA |
| 26.5.1958 | NSCC Mallory Park [S+1.5] | 63 | | John Morris | J. D. H. Morris | DNA |
| 26.5.1958 | NSCC Mallory Park [S+1.5] | 64 | T38 | Peter Mould | P. Mould | DNA |
| 26.5.1958 | NSCC Mallory Park [S+1.5] | 67 | T33 | Colin Murray | Murray Motors | DNA |
| 31.5.1958 | SCCA National Bridgehampton [BP+CP+UR+FIII] | 17 | 500 | James Stevens | | 8th |
| 31.5.1958 | SCCA National Bridgehampton [BP+CP+UR+FIII] | 19 | 500 | Jim Haynes | | 5th |
| 31.5.1958 | ICNSCC Deer Park [Formula Libre] | 122 | | George Keck | | 1st |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 136 | | John Biehl | John Biehl | DNA |
| 31.5.1958 | ICNSCC Deer Park [Modified] | | | Tom Meehan | | 2nd |
| 1.6.1958 | Santa Barbara [FM+GM+HM] | 136 | | John Biehl | John Biehl | DNA |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | | | Roy Winkelmann | | DNS |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 11 | T39 | Tony Hegbourne | Tony Hegbourne | raced |
| 7.6.1958 | LCCC Oulton Park [S1.5] | 11 | T39 | Tony Hegbourne | Tony Hegbourne | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 23 | 500 Mark IX | Derek Phillips | Derek Phillips | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 41 | 500 Mark X | Don Truman | Martin Winn Ltd. | DNA |
| 7.6.1958 | LCCC Oulton Park [1172F/750F] | 91 | T39 | Val Gardner | Val Gardner | 1st |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 91 | T39 | Val Gardner | Val Gardner | 5th |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 107 | 500 Mark X | Scott Bloor | Scott Bloor | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 109 | 500 Mark IX | Norman Bradley | Norman Bradley | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 115 | T45 | Jimmy Stuart | James Stuart | 3rd |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 119 | 500 | F. F. Clarke | F. F. Clarke | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 120 | 500 Mark VII | Reg Spreckley | Reg Spreckley | ?th |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 121 | 500 Mark XI | Teddie Dawson | Reg Spreckley | DNA |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 122 | 500 Mark VIII | Jack Lewis | Jack Lewis | ?th |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 123 | 500 Mark VIII | Geoff Gartside | Geoff Gartside | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 130 | T38 | Peter Mould | Peter Mould | ?th |
| 7.6.1958 | LCCC Oulton Park [FL/F3] | 130 | T38 | Peter Mould | Peter Mould | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 130 | T38 | Peter Mould | Peter Mould | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 132 | | John Morris | John Morris | DNA |
| 8.6.1958 | SCCA Regional Thompson [UR+FIII] | 19 | 500 | Jim Haynes | | DNA |
| 8.6.1958 | SCCA Regional Thompson [UR+FIII] | 24 | 500 | James Stevens | | 5th |
| 8.6.1958 | SCCA Regional Thompson [UR+FIII] | 75 | 500 | Lex duPont | | DNA |
| 8.6.1958 | SCCA Regional Thompson [UR+FIII] | 114 | 500 | Paul Richards | | 2nd |
| 8.6.1958 | SCCA Regional Thompson [UR+FIII] | 176 | 500 | Harry Whitney | | DNA |
| 8.6.1958 | SCCA Regional Thompson [UR+FIII] | 711 | 500 | John Briggs | | DNA |
| 8.6.1958 | SCCA Regional Eagle Mountain [BP+CP+Ace+GM] | | | Hugh Grammer | | 4th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 9] | | | Hugh Grammer | | 2nd |
| 14.6.1958 | SCCA National Lime Rock [FM+GM] | 116 | 1100 | Paul Richards | | 8th |
| 15.6.1958 | SCCA Regional Laguna Seca [FM+GM+FIII] | 222 | 500 Mark V | Tom Meehan | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [FM+GM+FIII] | 524 | 500 Mark VII | Rolf Roth | | ?th |