| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 4 | Eleven | Bill Allen | Curtis-Smith Racing Team | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 8 | Eleven | Peter Arundell | Cranham Service Station | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 8 | Eleven | Peter Arundell | Cranham Service Station | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 17 | | A. Brooke | A. Brooke | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 19 | | Tim Parnell | R. H. H. Parnell | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 21 | Eleven | David Buxton | Peveril Equipe | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 21 | Eleven | David Buxton | Peveril Equipe | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 22 | Eleven | John Higham | Ecurie White Rose | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 24 | Eleven Series 2 | Jimmy Blumer | J. Blumer | 3rd |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 25 | Eleven | Lionel Mayman | Kay Garages | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 31 | | M. V. Mackie | M. V. Mackie | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 33 | Eleven | Len Gibbs | L. Gibbs | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 34 | Eleven | Lewis Bramley | L. Bramley | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 35 | Eleven | A. P. Belcher | North Star Engineering Co. Ltd. | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 39 | | John Mitchell | E. J. B. Mitchell | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 41 | Eleven Sport | Bob Staples | Ecurie Gnuts | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 44 | Eleven Le Mans | David Brough | Team Sapphire | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 45 | Eleven | John Campbell-Jones | J. Campbell Jones | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 46 | | Colin Escott | C. G. Escott | DNA |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 48 | Eleven | Bob Hicks | Car Exchange | DNQ |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 49 | | J. L. King | J. L. King | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 50 | Eleven Series 2 | John Burgess | Ecurie White Rose | DNA |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 50 | Eleven | Peter Ashdown | Team Lotus | 3rd |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 51 | Eleven | Alan Stacey | Team Lotus | 1st |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 52 | Eleven | Keith Greene | Gilby Eng. | DNF |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 53 | Eleven | Bruce Halford | J. Fisher | 5th |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 55 | Eleven | Jack Westcott | I. Ireland Ltd. | DNQ |
| 4.8.1958 | BRSCC Brands Hatch [S1.5] | 56 | Eleven | Mike Taylor | I. Ireland Ltd. | 5th |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 57 | Eleven Series 2 | Christopher Martyn | I. Ireland Ltd. | 7th |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 58 | Eleven Le Mans Series 2 | Douglas Graham | I. Ireland Ltd. | DNQ |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 59 | Eleven | F. Massey-Dawson | F. P. Massey-Dawson | 6th |
| 4.8.1958 | Autosport Mallory Park [PS+1.0] | 60 | Elite | John Lawry | Equipe Arden | DNA |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 60 | Eleven | Fred Warnell | F. Warnell | DNF |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 62 | Eleven | Albert Zains | G. M. Jones | 8th |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 63 | Eleven | Don Iszatt | Don Iszatt | DNQ |
| 4.8.1958 | BRSCC Brands Hatch [S1.1] | 64 | Eleven | R. J. Fletcher | R. J. Fletcher | DNQ |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 74 | 15 | Tom Dickson | Dickson Motors (Perth) Ltd. | 1st |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 75 | Eleven | Jim Mackay | Dickson Motors (Perth) Ltd. | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 76 | | Innes Ireland | Major R. C. Robinson | DNA |
| 4.8.1958 | BRSCC Brands Hatch [S1.5] | 76 | Eleven Hume | Chris Bristow | Bradstock Motors | 1st |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 77 | | Innes Ireland | Major R. C. Robinson | 2nd |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 80 | | Gil Baird | Kieft Sports Car Co. Ltd. | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 80 | | Gil Baird | Kieft Sports Car Co. Ltd. | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 81 | Eleven | Stuart Dodd | C. S. Dodd | DNA |
| 4.8.1958 | BRSCC Brands Hatch [S1.5] | 112 | Eleven | Bill Frost | Car Exchange | DNF |
| 4.8.1958 | NSCC Mallory Park [S1.5] | | 15 | Edward Greenall | | 6th |
| 16.8.1958 | Harewood Acres [SR] | 16 | Eleven | Bob Hanna | Thomas R. Gilmour | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 16 | Eleven | Bob Hanna | Thomas R. Gilmour | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 72 | | Oliver Clubine | Ecurie Grande | DNA |
| 16.8.1958 | Harewood Acres [SR] | 72 | | Oliver Clubine | Ecurie Grande | DNA |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 86 | | John Haas | | DNF |
| 16.8.1958 | Harewood Acres [Le Mans] | 131 | Mark IX | Dennis Coad | D. M. Coad | 1st |
| 16.8.1958 | Harewood Acres [SR] | 131 | Mark IX | Dennis Coad | D. M. Coad | 2nd |
| 16.8.1958 | Harewood Acres [SR] | 142 | Mark IX | Robert E. Davidson | Ecurie Portland | 4th |
| 16.8.1958 | Harewood Acres [Le Mans] | 142 | Mark IX | Robert E. Davidson | Ecurie Portland | raced |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 214 | Eleven | J. C. Kilburn | | 4th |
| 16.8.1958 | 6 h Relay Silverstone [Handicap] | | Eleven | Douglas Graham | Innes Ireland Stable | ?th |
| 16.8.1958 | 6 h Relay Silverstone [Handicap] | | Eleven | F. Massey-Dawson | Innes Ireland Stable | ?th |
| 16.8.1958 | 6 h Relay Silverstone [Handicap] | | Eleven | Peter Heath | Innes Ireland Stable | ?th |
| 16.8.1958 | 6 h Relay Silverstone [Handicap] | | Eleven | Christopher Martyn | Innes Ireland Stable | ?th |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven | Julius Voigt-Nielsen | | 3rd |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven | Mike Anthony | | 1st |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven Le Mans S1 | Frede Andersen | | raced |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven | Joerges Bagger | | raced |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven | Bob Hicks | | raced |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven | Arne Dietlevsen | | 2nd |
| 16.8.1958 | Roskilde Ring [S1.1] | | Eleven | Elo Sørensen | | raced |
| 17.8.1958 | SCCA National Montgomery [FM+GM] | 2 | Eleven | Floyd Aaskov | | 5th |
| 17.8.1958 | SCCA National Montgomery [FM+GM] | 26 | Mark IX | Len Bastrup | | 7th |
| 17.8.1958 | Zeltweg [GT1.3] | 67 | Eleven Le Mans | Charles Vögele | Charles Vögele | 1st |
| 17.8.1958 | Zeltweg [Sports] | 109 | Eleven | John Campbell-Jones | Dan Margulies | DNA |
| 17.8.1958 | Zeltweg [Sports] | 119 | Eleven Le Mans | Colin Murray | Colin Murray | DNA |
| 17.8.1958 | SCCA National Montgomery [FM+GM] | 121 | Eleven | Warren Rohlfs | | 8th |
| 23.8.1958 | LASC Green Acres [S1.6] | 24 | Mark IX | Stan Ward | Stanley E. Ward | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 24 | Mark IX | Stan Ward | Stanley E. Ward | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 24 | Mark IX | Stan Ward | Stanley E. Ward | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 72 | | Oliver Clubine | Ecurie Grandé | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 72 | | Oliver Clubine | Ecurie Grandé | DNA |
| 23.8.1958 | LASC Green Acres [S1.6] | 72 | | Oliver Clubine | Ecurie Grandé | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 131 | Mark IX | Dennis Coad | Dennis M. Coad | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 131 | Mark IX | Dennis Coad | Dennis M. Coad | DNA |
| 23.8.1958 | LASC Green Acres [?] | 131 | Mark IX | Dennis Coad | Dennis M. Coad | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 133 | Eleven | Jerry Polivka | Terry Polivka | DNA |
| 23.8.1958 | LASC Green Acres [?] | 133 | Eleven | Jerry Polivka | Terry Polivka | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 133 | Eleven | Jerry Polivka | Terry Polivka | DNA |
| 23.8.1958 | LASC Green Acres [?] | 142 | Mark IX | Robert E. Davidson | Ecurie Portland | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 142 | Mark IX | Robert E. Davidson | Ecurie Portland | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 142 | Mark IX | Robert E. Davidson | Ecurie Portland | DNA |
| 23.8.1958 | BARC Goodwood [S1.1] | | Eleven | John Campbell-Jones | | 3rd |
| 23.8.1958 | BARC Goodwood [S1.5] | | Eleven | Peter Arundell | | 3rd |
| 23.8.1958 | BARC Goodwood [S1.1] | | | Mike Taylor | | 1st |
| 23.8.1958 | BARC Goodwood [S1.1] | | Eleven | Keith Greene | | 2nd |
| 23.8.1958 | BARC Goodwood [Handicap D] | | Eleven | Fred Warnell | | 3rd |
| 23.8.1958 | BARC Goodwood [S1.5] | | Eleven | Mike Taylor | | 1st |
| 23.8.1958 | BARC Goodwood [S1.5] | | Eleven | Keith Greene | | 2nd |
| 24.8.1958 | Hourglass Field [Unlimited] | | Eleven Club | Don Maslin | Wotus Bwossom | 3rd |
| 24.8.1958 | Hourglass Field [S1.5] | | Eleven Club | Don Maslin | Wotus Bwossom | 2nd |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 20 | Eleven | Len Gibbs | L. Gibbs | DNA |
| 30.8.1958 | Autosport Brands Hatch [Production] | 103 | Elite | Ian Walker | Ian Walker | 1st |
| 30.8.1958 | Autosport Brands Hatch [Production] | 104 | Elite | John Lawry | Equipe Arden | 2nd |