| 2.3.1958 | Preliminary Phoenix [Ladies] | 16 | | Charlotte Duncan | | 1st |
| 8.3.1958 | Preliminary Boca Raton [Novice] | | | J. J. Packo | | 2nd |
| 9.3.1958 | Preliminary Boca Raton [CM+DM+EM+FM+GM] | 20 | | Bill Bowman | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [CM+DM+EM+FM+GM+BP+CP+DP] | 20 | | Bill Bowman | | raced |
| 9.3.1958 | Preliminary Mansfield [FM+GM+HM] | 21 | | Robin Benson | | 1st |
| 9.3.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM] | 121 | #150 | Bob Aylward | | 5th |
| 9.3.1958 | Preliminary Mansfield [FM+GM+HM] | 121 | #150 | Bob Aylward | | 2nd |
| 9.3.1958 | SCCA Regional Boca Raton [CM+DM+EM+FM+GM+BP+CP+DP] | | | Roy Schecter | | DNA |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 16 | | Charlotte Duncan | | - |
| 22.3.1958 | 12 h Sebring | 49 | #275 | Moran / Ceresole | Charles Moran, Jr. | 38th |
| 22.3.1958 | 12 h Sebring | 54 | #503 | Chamberlain / Frost | Team Lotus | 9th |
| 22.3.1958 | 12 h Sebring | 55 | #504 | Chapman / Allison | Team Lotus | 6th |
| 22.3.1958 | 12 h Sebring | 56 | #339 | Weiss / Tallaksen | Team Lotus | 4th |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | | | Marion Lowe | | - |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | 16 | | John Miller | | 10th |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | 29 | | Dan Hernandez | | 13th |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | 35 | | John P. Young | | 7th |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | 87 | | Paul Nau | | 5th |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | | | James Lowe | | DNF |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | 17 | | Keith Greene | S. G. Greene | 3rd |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 17 | | Keith Greene | S. G. Greene | 3rd |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 18 | | Alex McMillan | Alex McMillan | DNA |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 19 | | Tom Dickson | Tommy Dickson | 2nd |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | 19 | | Tom Dickson | Tommy Dickson | 1st |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 20 | | Donald Mathieson | D. B. Mathieson | 9th |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | 20 | | Donald Mathieson | D. B. Mathieson | 6th |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 21 | | David Brough | D. J. Brough | 4th |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 22 | | John Campbell-Jones | John Campbell-Jones | 6th |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | 22 | | John Campbell-Jones | John Campbell-Jones | 4th |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 23 | | Jimmy Blumer | Jimmy Blumer | 1st |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | 24 | | Gordon Jones | Gordon Jones | 2nd |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 24 | | Gordon Jones | Gordon Jones | 5th |
| 29.3.1958 | BARC Mallory Park [Handicap B] | 25 | #330 | Dick Prior | Dick Prior | 1st |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 25 | #330 | Dick Prior | Dick Prior | 7th |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 26 | | Bruno Ferrari | Scuderia Madunina | DNS |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 26 | | Bruno Ferrari | Scuderia Madunina | DNS |
| 29.3.1958 | BARC Mallory Park [Handicap B] | 27 | | Christopher Martyn | Chris Martyn | 3rd |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 27 | | Christopher Martyn | Chris Martyn | 10th |
| 29.3.1958 | BARC Mallory Park [S1.1 A] | 28 | #316 | Douglas Graham | Doug Graham | 8th |
| 29.3.1958 | BARC Mallory Park [Handicap B] | 28 | #316 | Douglas Graham | Doug Graham | 5th |
| 29.3.1958 | BARC Mallory Park [S1.1 B] | 29 | | Mike Taylor | Michael Taylor | 2nd |
| 29.3.1958 | BARC Mallory Park [Handicap B] | 29 | | Mike Taylor | Michael Taylor | 2nd |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 31 | | Don Iszatt | D. Iszatt | 4th |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 32 | | Peter Arundell | Peter Arundell | 1st |
| 29.3.1958 | BARC Mallory Park [S1.1 B] | 32 | | Peter Arundell | Peter Arundell | 1st |
| 29.3.1958 | BARC Mallory Park [S1.1 B] | 33 | | Barry Harpin | B. Harpin | 3rd |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 33 | | Barry Harpin | B. Harpin | 3rd |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 34 | | F. Massey-Dawson | F. Massey-Dawson | 5th |
| 29.3.1958 | BARC Mallory Park [S1.1 B] | 35 | | Lewis Bramley | Lewis Bramley | 6th |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 35 | | Lewis Bramley | Lewis Bramley | DNF |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 36 | | Jim Mackay | Jimmy Mackay | 6th |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 37 | | Colin Escott | Colin Escott | 2nd |
| 29.3.1958 | BARC Mallory Park [S1.1 B] | 37 | | Colin Escott | Colin Escott | 4th |
| 29.3.1958 | BARC Mallory Park [S+1.1] | 51 | | John Wagstaff | John Wagstaff | DNA |
| 29.3.1958 | BARC Mallory Park [S+1.1] | 52 | | Mike Dickens | M. Dickens | 1st |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | 52 | | Mike Dickens | M. Dickens | 5th |
| 29.3.1958 | BARC Mallory Park [S+1.1] | 53 | | Bob Waters | Bob Waters | DNS |
| 29.3.1958 | BARC Mallory Park [Handicap B] | 82 | | Bob Staples | Ecurie Gnuts | 6th |
| 29.3.1958 | BARC Mallory Park [Unlimited A] | | | David Brough | D. J. Brough | DNF |
| 30.3.1958 | SCC-BC Abbotsford [Main] | 11 | | Harry Cross | | 2nd |
| 30.3.1958 | SCC-BC Abbotsford [Race 3] | 11 | | Harry Cross | | 1st |
| 30.3.1958 | SCC-BC Abbotsford [Race 3] | 129 | #217 | Pat Pigott | | 2nd |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | 63 | | John Mitchell | | 10th |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | 70 | | Stuart Dodd | C. S. Dodd | DNA |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | 80 | #268 | Peter Anders | | 8th |
| 5.4.1958 | BRSCC Full Sutton [Formula Libre] | 85 | | Jimmy Blumer | | 2nd |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | 85 | | Jimmy Steele | | 5th |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 85 | | Jimmy Steele | | 4th |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | 90 | | Bill Allen | | 3rd |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 90 | | Bill Allen | | 2nd |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | | | Harpin | | DNF |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | | | John Burgess | | raced |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | | | John Higham | | raced |
| 7.4.1958 | National Brands Hatch [S1.1] | 13 | | Don Iszatt | D. Iszatt | raced |
| 7.4.1958 | National Brands Hatch [S1.1] | 32 | | Alan Stacey | Alan Stacey | 1st |
| 7.4.1958 | National Brands Hatch [S1.1] | 36 | | Fred Warnell | F. Warnell | raced |
| 7.4.1958 | National Brands Hatch [S1.1] | 39 | #330 | Dick Prior | Richard Prior | raced |
| 7.4.1958 | National Brands Hatch [S1.1] | 43 | | Len Gibbs | Len Gibbs | 5th |
| 7.4.1958 | Goodwood [S1.1] | | | Keith Greene | | raced |
| 7.4.1958 | Goodwood [S1.1] | | | John Campbell-Jones | | 1st |
| 7.4.1958 | Goodwood [S1.1] | | | Peter Ashdown | | raced |
| 7.4.1958 | Goodwood [S1.1] | | | Keith Hall | | 4th |
| 7.4.1958 | Goodwood [S1.1] | | | Innes Ireland | | 5th |
| 7.4.1958 | Goodwood [S1.1] | | | Roy Salvadori | | 3rd |
| 7.4.1958 | Goodwood [S1.1] | | | Tom Dickson | | 2nd |
| 7.4.1958 | Goodwood [S1.1] | | | Gordon Fowell | | raced |
| 7.4.1958 | Goodwood [S1.1] | | | Ron Flockhart | | raced |
| 12.4.1958 | British Empire Trophy | 2 | #510 | Keith Greene | Gilby Engineering | 8th |
| 12.4.1958 | British Empire Trophy | 4 | #347 | Alan Stacey | Team Lotus | DNF |
| 12.4.1958 | British Empire Trophy | 5 | #349 | Peter Ashdown | Team Lotus | DNS |
| 12.4.1958 | British Empire Trophy | 6 | #345 | Keith Hall | Team Lotus | DNF |
| 12.4.1958 | British Empire Trophy | 7 | #506 | Mike Taylor | Innes Ireland Ltd. | 10th |
| 12.4.1958 | Grand Central [Sports] | 32 | | Denis Davis | | ?th |
| 12.4.1958 | Grand Central [1820 Settlers] | 32 | | Denis Davis | | raced |
| 12.4.1958 | British Empire Trophy | 44 | #307 | | J. M. Trimble | DNS |
| 12.4.1958 | British Empire Trophy | 47 | #178 | John Higham | Ecurie White Rose | DNQ |
| 12.4.1958 | British Empire Trophy | 49 | | Bill Frost | Car Exchange | DNA |
| 12.4.1958 | British Empire Trophy | 51 | #319 | Mike Dickens | Team Sapphire | DNQ |
| 12.4.1958 | British Empire Trophy | 52 | #269 | Geoff Williamson | G. H. Williamson | DNQ |
| 12.4.1958 | British Empire Trophy | 57 | #328 | Gordon Jones | E. Payne | 6th |