| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 8 | | Sheldon Dobkin | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 9 | | David Marks | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 13 | | M. Gartland | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 14 | | Rich Morton | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 21 | | George Lacy | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 25 | | V. Lamb | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 33 | | Keith Marks | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 36 | | Jim Fritz | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 43 | | Ed Wilson | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 48 | | W. Garrington | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 51 | | James Kent | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 82 | | Peter Hall | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 91 | | George Peck | | raced |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 28 | | Ray De Costa | | 20th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 40 | | Jack Dalton | | 14th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 40 | | Leon Mandel | | 11th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 62 | | Lee Talbot | | 7th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 75 | | Dan-San Abbott | | 20th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 92 | | James Moran | | 16th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 109 | | Bob Glaeser | | 18th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 140 | | Charley Monte | | 17th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 142 | | LeRon Jensen | | 14th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 148 | | Rick Hilgers | | 5th |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 152 | | Ed Leslie | | 13th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 152 | | Ed Leslie | | 3rd |
| 23.3.1958 | Preliminary Stockton [Novice Sports] | 158 | | Eugene Smith | | 13th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 179 | | Ed La Mantia | | 22nd |
| 23.3.1958 | SCCA Regional Stockton [Production 1.6] | 183 | | Jim Hughes | | 12th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 183 | | Ed Crooks | | 19th |
| 23.3.1958 | Preliminary Stockton [Novice Production 1.6] | 193 | | Scott Krag | | 6th |
| 29.3.1958 | BARC Mallory Park [Marque] | 63 | | I. McCulloch | I. McCulloch | 4th |
| 29.3.1958 | BARC Mallory Park [Marque] | 68 | | Ken Mackenzie | K. Mackenzie | 2nd |
| 29.3.1958 | BARC Mallory Park [Handicap A] | 68 | | Ken Mackenzie | K. Mackenzie | 1st |
| 29.3.1958 | BARC Mallory Park [Handicap A] | 69 | | Tommy Entwistle | Tommy Entwistle | 5th |
| 30.3.1958 | Willow Springs [Main] | 46 | | Bill Swarts | Bill Swarts | DNA |
| 30.3.1958 | Willow Springs [Production 1.6] | 46 | | Bill Swarts | Bill Swarts | DNA |
| 30.3.1958 | Willow Springs [Production 1.6] | 48 | | Don Stewart | Don Stewart | raced |
| 30.3.1958 | Willow Springs [Main] | 48 | | Don Stewart | Don Stewart | DNF |
| 30.3.1958 | SCC-BC Abbotsford [Race 1] | 74 | | Al Doyan | | 2nd |
| 30.3.1958 | Willow Springs [Main] | 104 | | Foross / Foross | Bill Foross | DNA |
| 30.3.1958 | Willow Springs [Ladies] | 104 | | Irma Foross | Irma Foross | DNA |
| 30.3.1958 | Willow Springs [Production 1.6] | 104 | | Bill Foross | Irma Foross | DNA |
| 30.3.1958 | Willow Springs [Novice] | 104 | | Bill Foross | Bill Foross | DNA |
| 30.3.1958 | Willow Springs [Ladies] | | | Barb Nieland | | 1st |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 23 | | T. L. A. Burgess | | 2nd |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 26 | | Tommy Entwistle | | 4th |
| 5.4.1958 | BRSCC Full Sutton [PS1.5] | 43 | | J. H. V. Cross | | 3rd |
| 7.4.1958 | National Brands Hatch [Production] | 86 | | D. J. Hayles | John Hayles | 3rd |
| 12.4.1958 | Grand Central [Sports] | 2 | | Leonard Sacke | | raced |
| 12.4.1958 | Grand Central [Sports] | 5 | | R. Rosen | | DNA |
| 12.4.1958 | Grand Central [Sports] | 6 | | Ian Fraser Jones | | DNA |
| 12.4.1958 | Grand Central [1820 Settlers] | 6 | | Leonard Sacke | | raced |
| 13.4.1958 | SCCA Regional Palm Springs [FP+GP+KP] | 1 | | John Free | John Free | DNF |
| 13.4.1958 | SCCA Regional Palm Springs [FP+GP+KP] | 31 | | George Schillreff | | 13th |
| 13.4.1958 | SCCA Regional Palm Springs [FP+GP+KP] | 33 | | Robert Allen | Robert Allen | DNA |
| 13.4.1958 | SCCA Regional Palm Springs [FP+GP+KP] | 77 | | Elliot Forbes-Robinson | Ken Swanson | 7th |
| 13.4.1958 | SCCA Regional Palm Springs [FP+GP+KP] | 128 | | Robert Scurlock | Robert Scurlock | DNS |
| 13.4.1958 | SCCA Regional Palm Springs [FP+GP+KP] | 130 | | Robert Parker | Robert Parker | 12th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 6 | | Jim Robinson | | 7th |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 6 | | Stephen Spitler | | 5th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 12 | | Robert Botkin | | 10th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 12 | | Robert Botkin | | 22nd |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | 14 | | Louis Heuss | | 5th |
| 20.4.1958 | Preliminary Galveston [FP+GP] | 14 | | Louis Heuss | | 5th |
| 20.4.1958 | San Salvador | 18 | | Mario Párraga | Mario Párraga | raced |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 65 | | Robert McCallum | | DNF |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 65 | | Robert McCallum | | 12th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 80 | | Don Urian | | 3rd |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 81 | | Brad Howes | | 2nd |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 81 | | Brad Howes | | 16th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 94 | | Roger Walker | | DNF |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 94 | | Jim Robinson | | DNF |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 120 | | Pat Patterson | | 9th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 120 | | Pat Patterson | | 5th |
| 20.4.1958 | SCCA National Marlboro [BM+CM+DM+EM+FM] | 133 | | David Muir | | 14th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 133 | | David Muir | | 6th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 143 | | Ben Fowke | | 1st |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 143 | | Ben Fowke | | 12th |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 143 | | Ben Fowke | | 8th |
| 20.4.1958 | SCCA National Marlboro [FP+HP] | 181 | | Dan Donoghue | | 11th |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | | | Tom Gerber | | raced |
| 20.4.1958 | Preliminary Galveston [FP+GP] | | | Geno Balducci | | 7th |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | | | Louis Heuss | | raced |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | | | Geno Balducci | | raced |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | | | Harold Krech | | DNF |
| 20.4.1958 | Preliminary Galveston [FP+GP] | | | Tom Gerber | | 6th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 6 | | George Schaab | | 18th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 17 | | George Valentine | | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 20 | | Sherman Decker | | 5th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 21 | | Henry Van Deusen | | 11th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 30 | | Millard Ripley | | 9th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 42 | | Don Urian | | 8th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 54 | | James Stevens | | 12th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 118 | | Wain Donoghue | | 15th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 158 | | Davis | | 24th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 160 | | Dennis Miller | | 19th |
| 27.4.1958 | SCCA Regional Louisville [MGA+GP+HM+Sedan] | | | Dudley Deimel | | ?th |
| 27.4.1958 | SCCA Regional Louisville [MGA+GP+HM+Sedan] | | | Denny Cornett | | ?th |
| 27.4.1958 | Preliminary Louisville [MGA+GP] | | | Allen | | ?th |
| 27.4.1958 | Preliminary Louisville [MGA+GP] | | | Dudley Deimel | | ?th |