| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 23 | | Roy Winkelmann | | DNF |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 188 | | Jack McAfee | Stan Sugarman | 2nd |
| 15.6.1958 | SCCA Regional Laguna Seca [Ladies+FIII] | 222 | 500 Mark V | Tom Meehan | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [FM+GM+FIII] | 512 | 500 Mark VIII | Jack Brink | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [FM+GM+FIII] | 530 | 500 Mark VI | Bob Wenz | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [FM+GM+FIII] | 551 | 500 Mark X | John Fox | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [Ladies+FIII] | | 500 | Rolf Roth | | ?th |
| 21.6.1958 | ADMC Crimond [Sports] | 27 | | Philip Dann | C. Murray | DNA |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 29 | T39 | Charles Cox | Charles Cox | 18th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 177 | 500 Mark XI | Mike Wood | Mike Wood | DNF |
| 28.6.1958 | Preliminary Riverside [Modified 1.5] | 160 | | Chuck Daigh | | 2nd |
| 28.6.1958 | Preliminary Riverside [Modified 1.5] | 221 | | John McLaughlin | | ?th |
| 29.6.1958 | WJC Charterhall [Racing] | 1 | 500 | Gordon Chippindale | G. F. Chippindale | DNA |
| 29.6.1958 | WJC Charterhall [Racing] | 3 | 500 | J. F. R. Verel | J. F. R. Verel | ?th |
| 29.6.1958 | WJC Charterhall [Racing] | 4 | 500 | Reg Spreckley | R. T. Spreckley | ?th |
| 29.6.1958 | WJC Charterhall [Racing] | 5 | Special | H. Stilborn | H. Stilborn | DNA |
| 29.6.1958 | WJC Charterhall [Racing] | 8 | | Norman Barclay | N. Barclay | ?th |
| 29.6.1958 | WJC Charterhall [Racing] | 45 | T33 | Colin Murray | C. Murray | DNA |
| 29.6.1958 | WJC Charterhall [S+1.5] | 45 | | Philip Dann | C. Murray | 4th |
| 29.6.1958 | Riverside [FM+GM+HM] | 136 | | John Biehl | | 6th |
| 29.6.1958 | Riverside [FM+GM+HM] | 160 | | Chuck Daigh | | DNF |
| 29.6.1958 | Riverside [FM+GM+HM] | 221 | | John McLaughlin | | DNF |
| 29.6.1958 | BARC Mallory Park [S1.1] | | T39 | Tony Hegbourne | | 5th |
| 5.7.1958 | National Open Crystal Palace | 45 | T38 | Peter Mould | P. Mould | raced |
| 5.7.1958 | SCCA National Lime Rock [DP+GM] | 113 | 1100 | Paul Richards | | 14th |
| 6.7.1958 | BMRC Charterhall [Racing Handicap] | 2 | 500 | Guy Wilson | T. G. F. Wilson | raced |
| 6.7.1958 | BMRC Charterhall [Racing Handicap] | 29 | 500 | M. Graham | M. Graham | raced |
| 6.7.1958 | BMRC Charterhall [Racing Handicap] | 30 | | Norman Barclay | N. V. L. Barclay | DNF |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 51 | | Philip Dann | C. Murray | DNA |
| 6.7.1958 | BMRC Charterhall [Racing Handicap] | 51 | | Philip Dann | C. Murray | DNS |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 138 | | Chuck Howard | Chuck Howard | 4th |
| 6.7.1958 | Hawaii [S1.6 Heat 1] | | | Bill Woodward | | 3rd |
| 6.7.1958 | SCCA Regional Minneapolis [Modified 1.6] | | T39 | Charles Cox | | 1st |
| 6.7.1958 | Hawaii [Main] | | | Bill Woodward | | 3rd |
| 6.7.1958 | Hawaii [S1.6 Heat 2] | | | Bill Woodward | | 2nd |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 18 | 500 Mark X | P. Proctor | | 11th |
| 12.7.1958 | BRSCC Full Sutton [SR] | 74 | | Philip Dann | | 5th |
| 12.7.1958 | BRSCC Full Sutton [SR] | 77 | | J. G. Allison | | 4th |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 77 | | J. G. Allison | | 5th |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 78 | | Norman Barclay | | 4th |
| 13.7.1958 | Vila Real | 28 | | Carlos Faustino | | DNF |
| 13.7.1958 | Pomona [S1.5] | | | Biehl | | 1st |
| 19.7.1958 | Berwick [Open] | 76 | 500 | Harry Whitney | | 3rd |
| 19.7.1958 | BEMC Harewood Acres [Formula Libre] | | 500 | Bill Brunt | Ecurie Volante | 3rd |
| 20.7.1958 | SCCA Regional Thompson [GM+HM+HP] | 113 | 1100 | Paul Bleustein | | 4th |
| 26.7.1958 | MCMC Oulton Park [S1.35] | 45 | T39 | Tony Hegbourne | Tony Hegbourne | 4th |
| 26.7.1958 | MCMC Oulton Park [Sports] | 45 | T39 | Tony Hegbourne | Tony Hegbourne | 3rd |
| 26.7.1958 | MCMC Oulton Park [S1.5] | 45 | T39 | Tony Hegbourne | Tony Hegbourne | 3rd |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 83 | 500 Mark X | Scott Bloor | Scott Bloor | DNA |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 85 | T45 | Jimmy Stuart | James Stuart | 1st |
| 27.7.1958 | Clermont-Ferrand [F2] | 2 | T43 | Maurice Trintignant | Rob Walker Racing | 1st |
| 27.7.1958 | Clermont-Ferrand [F2] | 4 | T45 | Tony Marsh | Tony Marsh | 4th |
| 27.7.1958 | Clermont-Ferrand [F2] | 6 | T45 | Stuart Lewis-Evans | British Racing Partnership | 3rd |
| 27.7.1958 | Clermont-Ferrand [F2] | 12 | T45 | Norman Barclay | Norman Barclay | 11th |
| 27.7.1958 | Clermont-Ferrand [F2] | 14 | T45 | Tim Parnell | Tim Parnell | 9th |
| 27.7.1958 | Clermont-Ferrand [F2] | 16 | T43 | Christian Goethals | Ecurie Eperon d'Or | 10th |
| 27.7.1958 | Clermont-Ferrand [F2] | 22 | T45 | Brian Naylor | JB Naylor | 6th |
| 27.7.1958 | Clermont-Ferrand [F2] | 28 | T43 | George Wicken | George Wicken | DNF |
| 27.7.1958 | Clermont-Ferrand [F2] | 32 | T43 | John Campbell-Jones | John Campbell-Jones | DNF |
| 27.7.1958 | Clermont-Ferrand [F2] | 36 | T45 | Alan MacKay | Alan MacKay | DNF |
| 27.7.1958 | Clermont-Ferrand [F2] | 38 | T43 | Dick Gibson | Dick Gibson | 8th |
| 27.7.1958 | Clermont-Ferrand [F2] | 40 | T45 | Harry Zweifel | Harry Zweifel | 7th |
| 3.8.1958 | SCCA Regional Shelton [S1.5] | 122 | | Tom Meehan | | 2nd |
| 3.8.1958 | SCCA Regional Shelton [S1.5] | 143 | Mk V | Bill Toews | | DNA |
| 3.8.1958 | Preliminary Minden [Ladies+FIII+MG+Novice] | 218 | 500 Mark X | Bob Korst | Bob Korst | DNA |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 236 | | John Biehl | John Biehl | DNA |
| 3.8.1958 | Preliminary Minden [Ladies+FIII+MG+Novice] | 515 | 500 Mark III | Bob Wenz | Robert Wenz | DNA |
| 3.8.1958 | SCCA Regional Shelton [S+1.5] | | | Tom Meehan | | 3rd |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 6 | | Norman Barclay | N. Barclay | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 7 | T45 | Jimmy Stuart | J. T. Stuart | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 9 | | Henry Taylor | George Nixon | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 11 | | John Campbell-Jones | J. Campbell Jones | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 12 | | Bob Gerard | Bob Gerard Cars | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 14 | | John D. Lewis | J. D. Lewis | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 18 | | Tim Parnell | R. H. H. Parnell | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 20 | T38 | Peter Mould | P. Mould | DNA |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 20 | T38 | Peter Mould | P. Mould | 2nd |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 32 | | Bluebelle Gibbs | R. Bluebelle Gibbs (Mrs.) | DNA |
| 4.8.1958 | NSCC Mallory Park [S1.5] | 47 | T39 | Averil Scott-Moncrieff | Mrs. A. Scott-Moncrieff | DNA |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 29 | T39 | Charles Cox | | 19th |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 55 | T39 | Fred Sclavi | | DNF |
| 16.8.1958 | Harewood Acres [Le Mans] | 69 | 500 | Bill Brunt | Bill Brunt, Jr. | DNA |
| 16.8.1958 | Harewood Acres [SR] | 69 | 500 | Bill Brunt | Bill Brunt, Jr. | DNA |
| 17.8.1958 | SCCA National Montgomery [FM+GM] | 116 | 1100 | Gerry Georgi | | DNF |
| 23.8.1958 | BARC Goodwood [Handicap C] | | | Chris Steele | | 2nd |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 3 | 500 | John Barnett | J. Barnett | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 4 | | J. M. Humphrey | J. M. Humphrey | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 14 | T39 | Godfrey Lambert | G. K. Lambert | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 14 | T39 | Godfrey Lambert | G. K. Lambert | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 21 | | Bluebelle Gibbs | Mrs. R. Bluebelle Gibbs | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 1] | 21 | | Bluebelle Gibbs | Mrs. R. Bluebelle Gibbs | DNA |
| 30.8.1958 | NSCC Silverstone [S1.1 Heat 2] | 27 | T39 | Brian Spicer | B. P. Spicer | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 1] | 27 | T39 | Brian Spicer | B. P. Spicer | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 42 | T45 | Jimmy Stuart | J. T. Stuart | DNA |
| 30.8.1958 | Preliminary Santa Barbara [EM+FM] | 49 | T39 | Bob Drake | | 1st |
| 30.8.1958 | NSCC Silverstone [S+2.7] | 56 | T38 | Peter Mould | P. Mould | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 56 | T38 | Peter Mould | P. Mould | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 71 | | Tim Parnell | R. H. H. Parnell | DNA |
| 30.8.1958 | Preliminary Santa Barbara [Novice] | 138 | | Chuck Howard | | DQ |
| 30.8.1958 | Preliminary Santa Barbara [EM+FM] | 138 | | Chuck Howard | | ?th |