| 1.6.1958 | SCCA Regional Dunkirk [MG] | 1 | A | Bernard Groh | | 6th |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | 4 | TD | W. A. Tapscott | | 26th |
| 1.6.1958 | SCCA Regional Dunkirk [Ladies] | 5 | A | Joyce Botkin | | 9th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 5 | A | Robert Botkin | | DNF |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 13 | A | Robert Soch | | 3rd |
| 1.6.1958 | GP Dunkirk | 15 | TF | E. Vollard | | 21st |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 15 | TF | E. Vollard | | 14th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 17 | A | Fred Reynolds | | 5th |
| 1.6.1958 | Santa Barbara [MG] | 25 | A | Jim Chaffee | Jim Chaffee | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 31 | A | Richard Soulsby | | DNF |
| 1.6.1958 | Santa Barbara [MG] | 34 | TD | Doug Sharman | Doug Sharman | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 34 | TD | John Voss | | DNF |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 35 | A | Art Smith | | 9th |
| 1.6.1958 | Santa Barbara [MG] | 42 | TC | T. C. Teague | T. C. Teague | DNA |
| 1.6.1958 | Santa Barbara [MG] | 43 | TD | Tom Yearian | Tom Yearian | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 52 | A | William Block | | DNS |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 54 | A | Richard A. Smith | | 11th |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | 55 | A | Joe Lenker | | 25th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 56 | A | Dudley Deimel | | 10th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 60 | TC | Eric O. Pettit | | 19th |
| 1.6.1958 | Santa Barbara [MG] | 61 | TD | Phil Carter | Phil Carter | DNA |
| 1.6.1958 | Santa Barbara [MG] | 62 | A | John Lumkin | John Lumkin | 3rd |
| 1.6.1958 | Santa Barbara [MG] | 67 | A | Elliot Forbes-Robinson | Ken Swanson | 2nd |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 70 | TC | Charles Henry | | 13th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 74 | A | Richard Kinsey | | 7th |
| 1.6.1958 | GP Dunkirk | 76 | A | Millard Ripley | | 18th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 76 | A | Millard Ripley | | 2nd |
| 1.6.1958 | Santa Barbara [MG] | 79 | A | Vernon Stephan | Vernon Stephan | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 79 | A | Phil Forsyth | | DQ |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 80 | A | Arch Means | | 4th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 84 | A | Jack Terhaar | | 12th |
| 1.6.1958 | Santa Barbara [MG] | 89 | A | Ray Pickering | Ray Pickering | 1st |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 90 | TC | D. Stewart | | 18th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 91 | TD | E. H. Clapham | | DNF |
| 1.6.1958 | Santa Barbara [MG] | 92 | TD Mk II | Jack Cleghorn | Jack Cleghorn | DNA |
| 1.6.1958 | Santa Barbara [MG] | 93 | A | Charley Monte | Charley Monte | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 97 | TF | John Tame | | 16th |
| 1.6.1958 | Santa Barbara [MG] | 98 | A | Richard Quint | Richard Quint | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 100 | A | John McFarland | | 8th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 111 | A | George Valentine | | 1st |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | 114 | A | Louis Heuss | | 11th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 121 | A | Laura Dasey | | 17th |
| 1.6.1958 | SCCA Regional Dunkirk [MG] | 214 | A | Stuart Northrup | | 15th |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | | A | Donald Lummis | | 18th |
| 7.6.1958 | Put-In-Bay [GP+HP] | 3 | TD | William Staufer | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 3 | TD | William Staufer | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 4 | TC | Ralph Cadwallader | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 7 | TF | John Tame | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 7 | TD | Harry Ratcliffe | Harry Ratcliffe | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 10 | TC | Ted Ley | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 11 | TD | Charles Tipton | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 11 | TF | Ralph Durbin | | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 15 | A | Terry Edmeston | Terry Edmeston | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 15 | A | Terry Edmeston | Terry Edmeston | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 15 | A | Bud Pell | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 16 | TC | Martin Alperstein | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 17 | TC | Charles Henry | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 20 | A | Roland Payne | | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 26 | A | Denise Woolley | Miss Denise Woolley | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 30 | A | | | raced |
| 7.6.1958 | Put-In-Bay [MG] | 44 | TD | Ronald Kehl | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 47 | TF | Al Weaver | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 49 | TD | Bill Henry | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 53 | A | Robert Wheaton | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 58 | | F. W. H. Booth | Scuderia Cascara | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 61 | A | | | raced |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 64 | A | Bob Dack | Bob Dack | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 69 | A | Hank Handley | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 74 | TD | Allen Hess | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 76 | A | Clement Mendham | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 79 | A | Howard Johnson | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 80 | TC | Willard Whisler | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 82 | TD | Tom Kersey | | DNA |
| 7.6.1958 | LCCC Oulton Park [S1.5] | 85 | A | J. Carefoot | R. J. Carefoot | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 85 | A | Del Lance | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 85 | A | J. Carefoot | J. Carefoot | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 85 | A | J. Carefoot | J. Carefoot | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 86 | TD | Jack Hargreaves | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 87 | TF | J. P. Hacking | J. P. Hacking | raced |
| 7.6.1958 | Put-In-Bay [FP] | 88 | A | Barnie Burnett | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 90 | A | Robert Floeck | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 91 | TD | Bill Malion | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 93 | A | Bill Malion | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 93 | A | Tommy Entwistle | Tom Entwistle | 2nd |
| 7.6.1958 | Put-In-Bay [FP] | 97 | A | Phil Forsyth | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 98 | TD | B. A. Miske | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 101 | TC | Elvadore Cranage, Jr. | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 102 | TF | Richard Reihm | | DNA |
| 7.6.1958 | Put-In-Bay [MG] | 103 | TF | John Bernard | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 104 | A | Dudley Deimel | | DNA |
| 7.6.1958 | Put-In-Bay [FP] | 121 | A | Homer Dasey | | DNA |
| 7.6.1958 | LCCC Oulton Park [S1.5] | 142 | A | Doreen Harris | Mrs. Doreen Harris | DNA |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 6 | A | George Schaab | | DNA |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 24 | A | James Stevens | | 10th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 53 | A | Dick Malone | | 7th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 56 | A | John Hunter | | DNF |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 69 | A | Dan Donoghue | | DNA |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 80 | A | Don Urian | | 5th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 86 | A | Kerr / Stores | | DNA |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 90 | A | Alan Dillenberg | | 9th |