| 27.4.1958 | WJC Charterhall [R/S+500] | 21 | | Malcolm Templeton | M. Templeton | 3rd |
| 27.4.1958 | WJC Charterhall [R/S+500] | 23 | | Jimmy Steele | J. Steele | DNA |
| 27.4.1958 | WJC Charterhall [R/S+500] | 35 | | John Higham | J. Higham | raced |
| 27.4.1958 | WJC Charterhall [R/S+500] | 69 | #325 | Jimmy Blumer | J. Blumer | 2nd |
| 3.5.1958 | Daily Express Silverstone [S1.5] | 22 | #345 | Keith Hall | | 3rd |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | #307 | Tony Marsh | | 6th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | #321 | Henry Taylor | John Green | 7th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | | Ivor Bueb | | 12th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | #347 | Alan Stacey | | 2nd |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | | Peter Arundell | | 13th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | | Jimmy Blumer | | 10th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | | Keith Greene | | 9th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | | Bob Hicks | | DNF |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | #328 | Innes Ireland | | 8th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | #349 | Peter Ashdown | Team Lotus | DNF |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | #311 | John Campbell-Jones | | 4th |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 2 | #323 | M. R. J. Wyllie | | 2nd |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 2 | #323 | M. R. J. Wyllie | | ?th |
| 10.5.1958 | Novice Tracy [Modified] | | | Bill Olson | | 2nd |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 16 | | Charlotte Duncan | John D. Miller | 2nd |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 16 | | John Miller | John D. Miller | 8th |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 35 | | John P. Young | John P. Young | DNA |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 39 | | James Lowe | James R. Lowe | DNA |
| 11.5.1958 | Hawaii [Match] | 44 | | Frank Monise | Frank Monise | DNA |
| 11.5.1958 | Hawaii [S1.6] | 44 | | Frank Monise | Frank Monise | DNA |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 46 | | Jim Hughes | James C. McCandless | 6th |
| 11.5.1958 | Hawaii [Match] | 52 | | John Hoogs | John Hoogs | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 52 | | Cal Niday | John Hoogs | 17th |
| 11.5.1958 | Hawaii [Locals] | 52 | | Cal Niday | John Hoogs | 11th |
| 11.5.1958 | Hawaii [S1.6] | 52 | | Cal Niday | John Hoogs | 10th |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 87 | | Paul Nau | Paul Nau | 4th |
| 11.5.1958 | Hawaii [Locals] | 171 | | Gino Wojciechowski | Gino Wojciechowski | 3rd |
| 11.5.1958 | Hawaii [S1.6] | 171 | | Gino Wojciechowski | Gino Wojciechowski | 4th |
| 11.5.1958 | Hawaii [Match] | 171 | | Gino Wojciechowski | Gino Wojciechowski | DNA |
| 11.5.1958 | Hawaii [Match] | 177 | | | Scuderia Encina | DNA |
| 11.5.1958 | Hawaii [S1.6] | 177 | | | Scuderia Encina | DNA |
| 15.5.1958 | Eläintarhanajo | 1 | | Holger Laine | | 11th |
| 15.5.1958 | Eläintarhanajo | 2 | | David Piper | | 8th |
| 15.5.1958 | Aspern [S1.5] | 22 | | John Campbell-Jones | Dan Margulies | DNF |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 2 | #323 | M. R. J. Wyllie | Margaret J. Wyllie | ?th |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 2 | #323 | Margaret Wyllie | Margaret J. Wyllie | 2nd |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 35 | | Frank Baptista | Continental Motors, Ltd. | 1st |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 45 | | Gilbert Geitner | Major Gil Geitner | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 54 | | Robert Weiler | Robert Weiler | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 116 | | Floyd Aaskov | Louis C. Bartol | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 133 | #133 | Tom Gilmour | Thomas Gilmour | raced |
| 18.5.1958 | LISCA Lime Rock [GM+HM+EP] | | | Thomas Scatchard | | ?th |
| 18.5.1958 | LISCA Lime Rock [GM+HM+EP] | | | Sy Kaback | | ?th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 22 | | Tom Dickson | | 1st |
| 24.5.1958 | BRSCC Full Sutton [SR/R] | 22 | | Tom Dickson | | 2nd |
| 24.5.1958 | BRSCC Full Sutton [SR] | 22 | | Tom Dickson | | 2nd |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 23 | | Stuart Dodd | | 3rd |
| 24.5.1958 | BRSCC Full Sutton [SR] | 23 | | Stuart Dodd | | 11th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 29 | | Lewis Bramley | | 6th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 30 | | Bill Allen | | 4th |
| 24.5.1958 | BRSCC Full Sutton [SR] | 30 | | Bill Allen | | 12th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 31 | | B. R. Potter | | 11th |
| 24.5.1958 | BRSCC Full Sutton [SR] | 32 | | Ralph Walker | | 13th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 32 | | Ralph Walker | | 9th |
| 24.5.1958 | BRSCC Full Sutton [SR] | 34 | | Greg Wood | | 16th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 37 | #268 | Peter Anders | | 10th |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 39 | | John Wagstaff | | 7th |
| 24.5.1958 | Whitsun Goodwood | | | Bill Frost | | 6th |
| 24.5.1958 | Whitsun Goodwood | | | Bob Hicks | | 5th |
| 25.5.1958 | GP des Frontières | 8 | #192 | André Wicky | | DNF |
| 25.5.1958 | GP des Frontières | 22 | | David Piper | | 8th |
| 25.5.1958 | GP des Frontières | 28 | #311 | John Campbell-Jones | | 5th |
| 25.5.1958 | GP des Frontières | 34 | #182? | Gordon Fowell | | 6th |
| 25.5.1958 | GP des Frontières | 36 | #290=>184 | Jimmy Blumer | | 3rd |
| 25.5.1958 | National Open Crystal Palace [S1.1] | | | Innes Ireland | | 2nd |
| 25.5.1958 | National Open Crystal Palace [S1.1] | | | Alan Stacey | | 1st |
| 25.5.1958 | Hourglass Field [Modified] | | | Eugene Scholl | | 3rd |
| 25.5.1958 | National Open Crystal Palace [S1.1] | | #506 | Mike Taylor | | 3rd |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 1 | | Stuart Dodd | C. S. Dodd | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 4 | | Lewis Bramley | L. I. Bramley | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 6 | | Tom Dickson | Dickson Motors (Perth) Ltd. | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 8 | | Len Gibbs | L. Gibbs | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 9 | | Barry Harpin | B. Harpin | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 10 | | Bill Allen | W. E. J. Allen | DNA |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 12 | | John Burgess | Ecurie White Rose | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 14 | | Colin Escott | C. G. Escott | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 15 | | Peter Arundell | Cranham Service Station | DNA |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 17 | | John Mitchell | E. J. B. Mitchell | DNA |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 28 | | David Brough | Team Sapphire | ?th |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 29 | | Mike Dickens | Team Sapphire | DNA |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 30 | | Bob Staples | Ecurie Gnuts | DNA |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 69 | | Lionel Mayman | Kay Garages | ?th |
| 31.5.1958 | Preliminary La Junta [BM+CM+DM+EM+FM+GM] | 2 | | Todd Aikens | | 7th |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 8 | #275 | Charles Moran | | 10th |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 12 | | Floyd Aaskov | | 4th |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 21 | | Warren Rohlfs | | 8th |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 21 | | Byron J. Snow, Jr. | Daniel Hernandez | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 27 | | Skip Conklin | Skip Conklin | DNA |
| 31.5.1958 | Preliminary La Junta [BM+CM+DM+EM+FM+GM] | 29 | | Robin Benson | | 8th |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 35 | | Frank Baptista | | DNF |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 39 | | James Lowe | James Rowland Lowe | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 44 | | Frank Monise | Frank Monise | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 102 | | Jack Nethercutt | Jack Nethercutt | DNA |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 136 | | Sy Kaback | | 12th |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 141 | | Joe Helweg | | DNF |