| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 8 | A | Sheldon Dobkin | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 8 | A | Sheldon Dobkin | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 9 | A | David Marks | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 13 | A | M. Gartland | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 14 | A | Rich Morton | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 14 | A | Rich Morton | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 19 | A | Ross Durant | | 6th |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 21 | A | George Lacy | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 21 | A | George Lacy | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 25 | A | V. Lamb | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 33 | A | Keith Marks | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 36 | A | Jim Fritz | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 36 | A | Jim Fritz | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 43 | A | Ed Wilson | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 43 | A | Ed Wilson | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 48 | A | W. Garrington | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 51 | A | James Kent | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 51 | A | James Kent | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 72 | TD | Felix Brunot | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 72 | TD | Felix Brunot | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 82 | A | Peter Hall | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 82 | A | Peter Hall | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 91 | A | George Peck | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 91 | A | George Peck | | raced |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 30 | TD | Keith Bryan | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 31 | TF | Jane Wells | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 33 | TD | Gordon Wilson | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 49 | TC | Morton Gray | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 56 | TD | Marshall Swope | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 84 | TD | Belmont Reid | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 110 | TC | John B. Male | | - |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 137 | TF | John Miller | | - |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 28 | A | Ray De Costa | | 20th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 30 | TD | Keith Abbott | | 21st |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 31 | TF | Randall Cowherd | | 16th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 31 | TF | William T. Ribbs | | 13th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 33 | TD | Gordon Wilson | | 18th |
| 23.3.1958 | Preliminary Stockton [Novice Sports] | 37 | Special | Phil Washburn | | 5th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 40 | A | Leon Mandel | | 11th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 40 | A | Jack Dalton | | 14th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 49 | TC | Morton Gray | | 15th |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | 56 | TD | Marshall Swope | | 14th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 62 | A | Lee Talbot | | 7th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 75 | A | Dan-San Abbott | | 20th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 84 | TD | Belmont Reid | | 21st |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 92 | A | James Moran | | 16th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 109 | A | Bob Glaeser | | 18th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 110 | TC | John VanderMale | | 15th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 110 | TC | Bob Winkelmann | | 9th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 140 | A | Charley Monte | | 17th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 142 | A | LeRon Jensen | | 14th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 148 | A | Rick Hilgers | | 5th |
| 23.3.1958 | Preliminary Stockton [Novice Sports] | 149 | Special | Jerry Lewis | | 2nd |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | 149 | Special | Jerry Lewis | | 3rd |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 152 | A | Ed Leslie | | 3rd |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 152 | A | Ed Leslie | | 13th |
| 23.3.1958 | Preliminary Stockton [Novice Sports] | 158 | A | Eugene Smith | | 13th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 173 | TF | Bob Downing | | 23rd |
| 23.3.1958 | SCCA Regional Stockton [S+1.5] | 178 | TD Special | Wallace Thomas | | 8th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 179 | A | Ed La Mantia | | 22nd |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 183 | A | Ed Crooks | | 19th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 183 | A | Jim Hughes | | 12th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 193 | A | Scott Krag | | 6th |
| 23.3.1958 | Preliminary Stockton [Novice Sports] | 198 | Special | Malcolm Shroyer | | 8th |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | | Simca Special | Stan Peterson | | raced |
| 23.3.1958 | SCCA Regional Stockton [S+1.5] | | Special R2 | Jack Duncan | | DNF |
| 23.3.1958 | SCCA Regional Stockton [S1.5] | | Special R2 | Jack Duncan | | DNF |
| 29.3.1958 | BARC Mallory Park [Marque] | 63 | A | I. W. McCulloch | I. McCulloch | 4th |
| 29.3.1958 | BARC Mallory Park [Handicap A] | 68 | A | Ken MacKenzie | K. Mackenzie | 1st |
| 29.3.1958 | BARC Mallory Park [Marque] | 68 | A | Ken MacKenzie | K. Mackenzie | 2nd |
| 29.3.1958 | BARC Mallory Park [Handicap A] | 69 | A | Tommy Entwistle | Tommy Entwistle | 5th |
| 30.3.1958 | Willow Springs [Production 1.6] | 46 | A | Bill Swarts | Bill Swarts | DNA |
| 30.3.1958 | Willow Springs [Main] | 46 | A | Bill Swarts | Bill Swarts | DNA |
| 30.3.1958 | Willow Springs [Main] | 48 | A | Don Stewart | Don Stewart | DNF |
| 30.3.1958 | Willow Springs [Production 1.6] | 48 | A | Don Stewart | Don Stewart | raced |
| 30.3.1958 | Willow Springs [Modified] | 51 | Special | Yarter / Haskell | Bart Haskell | DNA |
| 30.3.1958 | Willow Springs [Ladies] | 51 | Special | H. C. Hoppe | Bart Haskell | DNA |
| 30.3.1958 | Willow Springs [Main] | 51 | Special | Hoppe / Yarter / Haskell | Bart Haskell | DNA |
| 30.3.1958 | Willow Springs [Modified] | 52 | V8-60 | Russ Martin | Russ Martin | DNA |
| 30.3.1958 | Willow Springs [Main] | 52 | V8-60 | Russ Martin | Russ Martin | DNA |
| 30.3.1958 | SCC-BC Abbotsford [Race 1] | 74 | A | Al Doyan | | 2nd |
| 30.3.1958 | Willow Springs [Novice] | 104 | A | Bill Foross | Bill Foross | DNA |
| 30.3.1958 | Willow Springs [Production 1.6] | 104 | A | Bill Foross | Irma Foross | DNA |
| 30.3.1958 | Willow Springs [Main] | 104 | A | Foross / Foross | Bill Foross | DNA |
| 30.3.1958 | Willow Springs [Ladies] | 104 | A | Irma Foross | Irma Foross | DNA |
| 30.3.1958 | Willow Springs [Production 1.6] | 143 | TC | Chuck Cornett | George Harm - Radio KARM | DNA |
| 30.3.1958 | Willow Springs [Main] | 143 | TC | Chuck Cornett | George Harm - Radio KARM | DNA |
| 30.3.1958 | Willow Springs [Ladies] | | A | Barb Nieland | | 1st |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 23 | A | T. L. A. Burgess | | 2nd |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 26 | A | Tommy Entwistle | | 4th |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 27 | TF 1500 | J. P. Hacking | | 1st |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 30 | TD | Harry Ratcliffe | | 14th |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 34 | Magnette | C. W. Buckley | | DNA |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 38 | Magnette | C. W. Jepson | | DNA |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 43 | A | J. H. V. Cross | | 3rd |
| 7.4.1958 | National Brands Hatch [Production] | 86 | A | D. J. Hayles | John Hayles | 3rd |
| 7.4.1958 | Autosport Mallory Park [Production] | | A | Ken MacKenzie | Ecuire Chiltern | ?th |
| 12.4.1958 | Grand Central [Sports] | 2 | A | Leonard Sacke | | raced |
| 12.4.1958 | Grand Central [Sports] | 5 | A | R. Rosen | | DNA |
| 12.4.1958 | Grand Central [Sports] | 6 | A | Ian Fraser Jones | | DNA |