| 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 [SR] | 69 | 500 | Bill Brunt | Bill Brunt, Jr. | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 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 [S1.1 Heat 1] | 14 | T39 | Godfrey Lambert | G. K. Lambert | 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] | 21 | | Bluebelle Gibbs | Mrs. R. Bluebelle Gibbs | 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 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 [Formula Libre Heat 2] | 56 | T38 | Peter Mould | P. Mould | DNA |
| 30.8.1958 | NSCC Silverstone [S+2.7] | 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 |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 43 | | Jock Ross | | 19th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 49 | T39 | Bob Drake | | 4th |
| 31.8.1958 | Preliminary Mansfield [FM+GM+HM+FIII] | 52 | | Hugh Grammer | Hugh Grammer | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 52 | | Hugh Grammer | Hugh Grammer | DNA |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 138 | | Chuck Howard | | 3rd |
| 31.8.1958 | Preliminary Thompson [FM+GM] | 161 | 1100 | Paul Bleustein | Paul Bleustein | 4th |
| 31.8.1958 | Deer Park [CM+DM+EM] | | | Tom Meehan | | DNF |
| 31.8.1958 | Deer Park [FM+GM+HM] | | | Tom Meehan | | 1st |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 161 | 1100 | Paul Richards | Paul Bleustein | 3rd |
| 6.9.1958 | Sunbac Silverstone [Formula Libre Handicap] | | T45 | Jimmy Stuart | | 3rd |
| 6.9.1958 | Sunbac Silverstone [Hadicap 2] | | T45 | Jimmy Stuart | | raced |
| 6.9.1958 | Sunbac Silverstone [Hadicap 1] | | T38 | Peter Mould | | DNS |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S1.1] | 31 | T39 | Averil Scott-Moncrieff | Mrs. Avril Scott Moncreiff | 19th |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S1.1] | 32 | T39 | Godfrey Lambert | Godfrey Lambert | DNF |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S1.1] | 33 | T39 | M. Kaye | Jim Russell School | DNA |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S1.1] | 34 | T39 | G. Smith | J. Russell School | 14th |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S1.1] | 35 | T39 | R. York | Jim Russell School | 15th |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S1.1] | 37 | T39 | Brian Spicer | B. Spicer | DNA |
| 7.9.1958 | Scott-Brown Memorial Snetterton [S+1.1] | 57 | T38 | Peter Mould | Peter Mould | DNA |
| 14.9.1958 | Circuito di Salerno | | | Savenier | | 3rd |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 19 | 500 Mark II | Jim Haynes | James E. Haynes | 7th |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 75 | 500 | Jacques DuPont | | 5th |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 77 | 500 Mark XI | Mike Wood | | DNF |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 77 | 500 Mark XI | Mike Wood | Mike Wood | DNA |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 87 | 500 Mark XI | John Gadwa | John W. Gadwa | 12th |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 88 | 500 Mark II | Albert N. Luther | Albert N. Luther | DNA |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 114 | 500 | Paul Richards | Paul Richards | 6th |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 150 | 500 | John Anderegg | | 10th |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 163 | 500 | Robert Kahmer | | 8th |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 169 | 500 Mark VIII | W. R. Brunt, Jr. | W. R. Brunt, Jr. | DNA |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 174 | 500 | George Alderman | | DNF |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 180 | 500 Mark V | Richard Cornman | | DNF |
| 20.9.1958 | Preliminary Watkins Glen [UR+FIII] | 180 | 500 Mark V | Richard Cornman | Richard W. Cornman | DNA |
| 20.9.1958 | Taça Cidade de Luanda | | | Rui Marinho de Lemos | | raced |
| 21.9.1958 | GP Berlin | 1 | T45 | Tony Marsh | Tony Marsh | 10th |
| 21.9.1958 | GP Berlin | 2 | T45 | Bruce McLaren | Tommy Atkins | raced |
| 21.9.1958 | GP Berlin | 3 | T43 | Ian Burgess | Tommy Atkins | raced |
| 21.9.1958 | GP Berlin | 6 | T45 | Jack Brabham | Jack Brabham | 7th |
| 21.9.1958 | GP Berlin | 8 | T45 | Jim Russell | Jim Russell | 6th |
| 21.9.1958 | GP Berlin | 10 | T43 | George Wicken | George Wicken | raced |
| 21.9.1958 | GP Berlin | 11 | T45 | Harry Zweifel | Scuderia Glarona | DNA |
| 21.9.1958 | GP Berlin | 12 | T45 | Mike Taylor | Alan Brown Equipe | 9th |
| 21.9.1958 | LISCA Lime Rock [CM+BP+CP] | | 500 | | | raced |
| 21.9.1958 | Preliminary Galveston [BP+CP+DP+EP+GM] | | | Hugh Grammer | | 6th |
| 28.9.1958 | WJC Charterhall [Racing] | 9 | 500 | Gordon Chippindale | G. F. Chippindale | DNA |
| 28.9.1958 | WJC Charterhall [Racing] | 10 | | Norman Barclay | N. Barclay | 3rd |
| 28.9.1958 | ICNSCC Ellensburg [Modified] | 43 | Special | Bill Toews | | DNF |
| 28.9.1958 | Hourglass Field [Ladies+FIII] | | 500 | Ken Nichols | | ?th |
| 28.9.1958 | Hourglass Field [Ladies+FIII] | | 500 | Jack Brink | | ?th |
| 28.9.1958 | Hourglass Field [FM+GM+HM] | | | Jock Ross | | ?th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 19 | 500 | Jim Haynes | James Haynes | 7th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 73 | 500 | Richard Hagy | C. Richard Hagy | 9th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 75 | 500 | Jacques DuPont | | 14th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 76 | 500 | Harry Whitney | | DNF |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 77 | 500 Mark XI | Mike Wood | | 10th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 114 | 500 | Paul Richards | | 12th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 150 | 500 | John Anderegg | | 11th |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 238 | | Chuck Howard | | 3rd |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 500 | 500 | James Stevens | | DNF |
| 5.10.1958 | Australian TT | | T38 | Phillips | | 3rd |
| 11.10.1958 | LCCC Oulton Park [Sports] | 8 | T39 | Tony Hegbourne | Tony Hegbourne | 6th |
| 11.10.1958 | LCCC Oulton Park [1172F/750F] | 94 | T39 | Val Gardner | Val Gardner | 3rd |