| 8.2.1958 | Preliminary Pomona [Production 1.5] | 41 | | Bruce Middaugh | Bruce Middaugh | DNA |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 46 | | John Free | A. M. Walker | 13th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 62 | | John Lumkin | J. E. Lumkin | 3rd |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 67 | | Elliot Forbes-Robinson | Ken Swanson | 10th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 77 | | Mark Sanders | Mark Sanders | 9th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 79 | | Vernon Stephan | Vernon Stephan | 16th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 89 | | Ray Pickering | Ray Pickering | 17th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 105 | | Butler | Hal Butler | 11th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 126 | | Ed Stewart | Ed Stewart | 7th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 128 | | Robert Scurlock | Robert Scurlock | 4th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 133 | | Richard Quint | Richard Quint | 15th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 150 | | Robert Parker | Robert Parker | 14th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 169 | | George Demetras | George Demetras | DNA |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 194 | | Frank Nichols | Frank Nichols | 6th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 226 | | John Snider | John Snider | 8th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 251 | | Jim Chaffee | Jim Chaffee | 12th |
| 9.2.1958 | Pomona [Production MG] | 41 | | Bruce Middaugh | Bruce Middaugh | DNA |
| 9.2.1958 | Pomona [Production MG] | 46 | | John Free | A. M. Walker | DNS |
| 9.2.1958 | Pomona [Production MG] | 62 | | John Lumkin | J. E. Lumkin | DNF |
| 9.2.1958 | Pomona [Production MG] | 67 | | Elliot Forbes-Robinson | Ken Swanson | 1st |
| 9.2.1958 | Pomona [Production MG] | 77 | | Mark Sanders | Mark Sanders | 6th |
| 9.2.1958 | Pomona [Production MG] | 79 | | Vernon Stephan | Vernon Stephan | 14th |
| 9.2.1958 | Pomona [Production MG] | 89 | | Ray Pickering | Ray Pickering | 2nd |
| 9.2.1958 | Pomona [Ladies] | 89 | | Ruth Doushkess | Ray Pickering | DNA |
| 9.2.1958 | Pomona [Ladies] | 105 | | Ruth Doushkess | Hal Butler | DNA |
| 9.2.1958 | Pomona [Production MG] | 105 | | Dillaway | Hal Butler | 15th |
| 9.2.1958 | Pomona [Production MG] | 126 | | Ed Stewart | Ed Stewart | 7th |
| 9.2.1958 | Pomona [Production MG] | 128 | | Robert Scurlock | Robert Scurlock | 3rd |
| 9.2.1958 | Pomona [Production MG] | 133 | | Richard Quint | Richard Quint | DNF |
| 9.2.1958 | Pomona [Production MG] | 150 | | Robert Parker | Robert Parker | 9th |
| 9.2.1958 | Pomona [Production MG] | 169 | | George Demetras | George Demetras | DNA |
| 9.2.1958 | Pomona [Production MG] | 194 | | Frank Nichols | Frank Nichols | 8th |
| 9.2.1958 | Pomona [Production MG] | 226 | | John Snider | John Snider | 5th |
| 9.2.1958 | Pomona [Ladies] | 251 | | Dot Chaffee | Jim Chaffee | 6th |
| 9.2.1958 | Pomona [Production MG] | 251 | | Jim Chaffee | Jim Chaffee | 4th |
| 9.2.1958 | Guadalajara [1.5] | | | Amado Pedrero | | 3rd |
| 9.2.1958 | Guadalajara [1.5] | | | Luis Gonzalez Hernandez | | 2nd |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 4 | | Keith Marks | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 4 | | Keith Marks | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 9 | | George Peck | | 7th |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 9 | | George Peck | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 19 | | Ross Durant | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 19 | | Ross Durant | | 5th |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 28 | | Dick Richard | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 28 | | Dick Richard | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 33 | | E. D. Martin | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 33 | | E. D. Martin | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 77 | | Parsons / Hardin | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 77 | | Parsons / Hardin | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 94 | | Arch Means | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 94 | | Arch Means | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [Novice 2] | 601? | | Otis Culbreth | | raced |
| 16.2.1958 | Willow Springs [Ladies] | | | Barbara Scott | | 2nd |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | | | Sheldon Dobkin | | 6th |
| 16.2.1958 | Willow Springs [Production 1.6] | | | Don Stewart | | 2nd |
| 16.2.1958 | Willow Springs [Production 1.6] | | | Bill Hunt | | DNF |
| 16.2.1958 | Willow Springs [Production 1.6] | | | Jon Van Rhyn | | 3rd |
| 16.2.1958 | Willow Springs [Production 1.6] | | | Fred Heffington | | 1st |
| 1.3.1958 | Preliminary Phoenix [Novice] | 29 | | Melvin Davis | | 20th |
| 1.3.1958 | Preliminary Phoenix [Novice] | 33 | | Ed Crooks | | 21st |
| 2.3.1958 | SCCA Regional Phoenix [FP+GP+HP+HM] | 29 | | Melvin Davis | | 12th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 29 | | Melvin Davis | | 22nd |
| 2.3.1958 | SCCA Regional Phoenix [FP+GP+HP+HM] | 33 | | Ed Crooks | | 14th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 33 | | Jack Dalton | | 19th |
| 8.3.1958 | Novice Mansfield [S1.6] | 38 | | Harold Kreech | | 3rd |
| 8.3.1958 | Novice Mansfield [S1.6] | 77 | | J. B. Richard | | 2nd |
| 8.3.1958 | Novice Mansfield [S1.6] | 265 | | R. O. Biesel | | 4th |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 8 | | Sheldon Dobkin | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 9 | | David Marks | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 13 | | M. Gartland | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 14 | | Rich Morton | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 19 | | Ross Durant | | raced |
| 9.3.1958 | SCCA Regional Boca Raton [FP+GP+HP+KP+HM] | 19 | | Ross Durant | | 6th |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 21 | | George Lacy | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 25 | | V. Lamb | | raced |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 27 | | Frank Folbre | | 5th |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 27 | | Frank Folbre | | DNF |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 33 | | Tom Gerber | | 3rd |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 33 | | Keith Marks | | raced |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 33 | | Tom Gerber | | 3rd |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 36 | | Jim Fritz | | raced |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 38 | | Harold Krech | | 10th |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 38 | | Harold Krech | | DNS |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 40 | | Louis Heuss | | 2nd |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 40 | | Louis Heuss | | 2nd |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 43 | | Ed Wilson | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 48 | | W. Garrington | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 51 | | James Kent | | raced |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 57 | | Bob Nation | | 1st |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 57 | | Bob Nation | | 1st |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 60 | | Phil Godwin | | DNF |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 60 | | Phil Godwin | | 6th |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 77 | | J. B. Richard | | 9th |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 77 | | J. B. Richard | | 6th |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 82 | | Peter Hall | | raced |
| 9.3.1958 | Preliminary Boca Raton [FP+GP+HP+KP+HM] | 91 | | George Peck | | raced |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 101 | | J. A. Douglas | | 7th |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 101 | | J. A. Douglas | | 5th |
| 9.3.1958 | SCCA Regional Mansfield [MGA+GP+KP+HM] | 265 | | R. O. Bisel | | DNS |
| 9.3.1958 | Preliminary Mansfield [MGA+GP+KP] | 265 | | R. O. Bisel | | DNF |