| 16.8.1958 | Harewood Acres [SR] | 16 | | Bob Hanna | Thomas R. Gilmour | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 16 | | Bob Hanna | Thomas R. Gilmour | DNA |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 214 | | J. C. Kilburn | | 4th |
| 16.8.1958 | Roskilde Ring [S1.1] | | #180 | Frede Andersen | | raced |
| 16.8.1958 | Roskilde Ring [S1.1] | | | Mike Anthony | | 1st |
| 17.8.1958 | SCCA National Montgomery [FM+GM] | 2 | | Floyd Aaskov | | 5th |
| 17.8.1958 | Zeltweg [GT1.3] | 67 | | Charles Vögele | Charles Vögele | 1st |
| 17.8.1958 | Zeltweg [Sports] | 109 | | John Campbell-Jones | Dan Margulies | DNA |
| 17.8.1958 | Zeltweg [Sports] | 119 | | Colin Murray | Colin Murray | DNA |
| 17.8.1958 | SCCA National Montgomery [FM+GM] | 121 | | Warren Rohlfs | | 8th |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 133 | | Jerry Polivka | Terry Polivka | DNA |
| 23.8.1958 | LASC Green Acres [?] | 133 | | Jerry Polivka | Terry Polivka | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 133 | | Jerry Polivka | Terry Polivka | DNA |
| 23.8.1958 | BARC Goodwood [S1.1] | | | Peter Arundell | | raced |
| 23.8.1958 | BARC Goodwood [S1.5] | | | Mike Taylor | Innes Ireland | 1st |
| 23.8.1958 | BARC Goodwood [S1.1] | | | Jack Westcott | | raced |
| 23.8.1958 | BARC Goodwood [S1.1] | | | Keith Greene | Gilby Engineering | 2nd |
| 23.8.1958 | BARC Goodwood [S1.5] | | | Keith Greene | Gilby Engineering | 2nd |
| 23.8.1958 | BARC Goodwood [S1.5] | | | Peter Arundell | | 3rd |
| 23.8.1958 | BARC Goodwood [Handicap D] | | | Fred Warnell | | 3rd |
| 23.8.1958 | BARC Goodwood [S1.1] | | | Mike Taylor | Innes Ireland | 1st |
| 23.8.1958 | BARC Goodwood [S1.1] | | | John Campbell-Jones | | 3rd |
| 23.8.1958 | BARC Goodwood [S1.5] | | | John Campbell-Jones | | 6th |
| 24.8.1958 | Hourglass Field [Unlimited] | | #263 | Don Maslin | Wotus Bwossom | 3rd |
| 24.8.1958 | Hourglass Field [S1.5] | | #263 | Don Maslin | Wotus Bwossom | 2nd |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 10 | | A. P. Belcher | A. P. Belcher | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 10 | | A. P. Belcher | A. P. Belcher | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 11 | | J. van Vlymen | J. Van Vlymen | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 11 | | J. van Vlymen | J. Van Vlymen | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 12 | | Francis Francis | F. Francis | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 17 | | Stuart Dodd | S. Dodd | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 19 | | David Brough | Team Sapphire | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 19 | | David Brough | Team Sapphire | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 20 | | Len Gibbs | L. Gibbs | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 20 | | Len Gibbs | L. Gibbs | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 22 | | Keith Ralphs | K. Ralphs | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 22 | | Keith Ralphs | K. Ralphs | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 23 | | George Ralphs | G. Ralphs | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 23 | | George Ralphs | G. Ralphs | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 26 | | E. G. Manton | Dr. E. G. Manton | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 26 | | E. G. Manton | Dr. E. G. Manton | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 29 | #151 | Mark Fitzalan Howard | M. Fitzalan Howard | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 29 | #151 | Mark Fitzalan Howard | M. Fitzalan Howard | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 30 | | Bill Allen | Curtis Smith Racing Team | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 30 | | Bill Allen | Curtis Smith Racing Team | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 32 | #522 | Peter Heath | E. P. Heath | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 32 | #522 | Peter Heath | E. P. Heath | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 33 | | Ralph Walker | R. Walker | DNA |
| 30.8.1958 | NSCC Silverstone [S1.5] | 33 | | Ralph Walker | R. Walker | DNA |
| 30.8.1958 | NSCC Silverstone [S1.5] | 35 | #268 | Peter Anders | P. D. Anders | DNA |
| 30.8.1958 | Brands Hatch [S1.5] | 41 | | John Wagstaff | J. B. Wagstaff | DNQ |
| 30.8.1958 | Brands Hatch [S1.5] | 42 | | Graham Hill | Chequered Flag | 2nd |
| 30.8.1958 | Brands Hatch [S1.5] | 44 | | David Shale | M. Trimble | DNQ |
| 30.8.1958 | Preliminary Santa Barbara [GM+HM] | 44 | | Frank Monise | | DNF |
| 30.8.1958 | NSCC Silverstone [S1.5] | 44 | | Mike Dickens | Team Sapphire | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 44 | | Mike Dickens | Team Sapphire | DNA |
| 30.8.1958 | Brands Hatch [S1.5] | 45 | | Gordon Jones | G. M. Jones | DNF |
| 30.8.1958 | Brands Hatch [S1.5] | 46 | | Peter Ashdown | Team Lotus | DNS |
| 30.8.1958 | Brands Hatch [S1.5] | 47 | | Alan Stacey | Team Lotus | 1st |
| 30.8.1958 | Brands Hatch [S1.5] | 48 | | Bill Frost | Bill Frost | DNA |
| 30.8.1958 | Brands Hatch [S1.5] | 49 | | Keith Greene | Gilby Eng | DNQ |
| 30.8.1958 | Brands Hatch [S1.5] | 50 | | Jimmy Blumer | J. Blumer | 5th |
| 30.8.1958 | Brands Hatch [S1.5] | 51 | | Bob Hicks | N. R. Hicks | DNF |
| 30.8.1958 | Brands Hatch [S1.5] | 52 | | Tom Dickson | Dickson Motors | 4th |
| 30.8.1958 | Brands Hatch [S1.5] | 53 | | Les Leston | J. Fisher | 3rd |
| 30.8.1958 | Brands Hatch [S1.5] | 54 | | John Campbell-Jones | J. Campbell-Jones | DNQ |
| 30.8.1958 | Brands Hatch [S1.5] | 55 | | Peter Tomei | J. Hine Cars | DNQ |
| 30.8.1958 | Brands Hatch [S1.5] | 56 | | David Piper | D. Piper | DNQ |
| 30.8.1958 | Brands Hatch [S1.5] | 57 | | Jack Westcott | I. Ireland Ltd. | DNQ |
| 30.8.1958 | Brands Hatch [S1.5] | 58 | #506 | Mike Taylor | I. Ireland Ltd. | DNF |
| 30.8.1958 | Brands Hatch [S1.5] | 59 | #329 | Douglas Graham | I. Ireland Ltd. | 6th |
| 30.8.1958 | Brands Hatch [S1.5] | 60 | | Pat Massey-Dawson | Pat Massey-Dawson | DNQ |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 64 | | David Buxton | Peveril Equipe | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 64 | | David Buxton | Peveril Equipe | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 65 | | Lewis Bramley | L. Bramley | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 65 | | Lewis Bramley | L. Bramley | DNA |
| 30.8.1958 | Brands Hatch [S1.5] | 69 | #168 | Peter Arundell | Cranham Service St | DNF |
| 30.8.1958 | Brands Hatch [S1.5] | 70 | | Peter Riley | Peter Riley | 7th |
| 30.8.1958 | Brands Hatch [S1.5] | 71 | | Don Iszatt | D. F. Iszatt | DNA |
| 30.8.1958 | Preliminary Santa Barbara [GM+HM] | 116 | | Chuck Schroeder | | 2nd |
| 30.8.1958 | Preliminary Santa Barbara [GM+HM] | | | Skip Conklin | | 1st |
| 30.8.1958 | Preliminary Santa Barbara [Novice] | | | Jack Reddish | | ?th |
| 31.8.1958 | Preliminary Mansfield [FM+GM+HM+FIII] | 12 | | Todd Aikens | Todd Aikens | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 12 | | Todd Aikens | Todd Aikens | DNA |
| 31.8.1958 | Preliminary Thompson [FM+GM] | 14 | | Floyd Aaskov | | 3rd |
| 31.8.1958 | Preliminary Mansfield [FM+GM+HM+FIII] | 31 | | John Goans | Dave Kiser | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 31 | | John Goans | Dave Kiser | DNA |
| 31.8.1958 | Preliminary Thompson [FM+GM] | 41 | | Bill Schade | | 5th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 44 | | Frank Monise | | 8th |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 54 | | Dave Tallaksen | Dave Tallaksen | DNA |
| 31.8.1958 | Preliminary Mansfield [FM+GM+HM+FIII] | 54 | | Dave Tallaksen | Dave Tallaksen | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 99 | | Tom Newcomer | E. Tom Newcomer | DNA |
| 31.8.1958 | Preliminary Mansfield [FM+GM+HM+FIII] | 99 | | Tom Newcomer | E. Tom Newcomer | DNA |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 116 | | Chuck Schroeder | | 6th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 151 | #263 | Don Maslin | | 22nd |
| 31.8.1958 | Courtland [GM+FP+GP+HP] | | | Jim Hunt | | 1st |
| 31.8.1958 | Deer Park [FM+GM+HM] | | | Pat Pigott | | 2nd |
| 31.8.1958 | Courtland [GM+FP+GP+HP] | | | Robert McKaughn | | 3rd |
| 31.8.1958 | Deer Park [FM+GM+HM] | | | Pierre Phillips | | 3rd |
| 1.9.1958 | St. Eugene [S1.6] | | | Jerry Polivka | | 1st |