| 8.2.1958 | Preliminary Pomona [Modified 1.5] | 8 | Special | Dusty Miller | Dusty Miller | DNS |
| 8.2.1958 | Preliminary Pomona [Modified 1.5] | 25 | Special | Jim Chaffee | Jim Chaffee | 15th |
| 8.2.1958 | Preliminary Pomona [Modified 1.5] | 26 | Special | Alan Kerns | Bud Hand | 12th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 28 | TD | George Lachman | Georges Lachman | 13th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 32 | TD | Cliff Hensley | Cliff Hensley | DNA |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 39 | TF | Greg Krem | Greg Krem | 14th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 46 | A | John Free | A. M. Walker | 13th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 61 | TD | Phil Carter | Phil Carter | 11th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 67 | A | Elliot Forbes-Robinson | Ken Swanson | 10th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 92 | TD Mk II | Jack Gleghorn | Jack Gleghorn | 7th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 101 | TF | Jack Bleak | Jack Bleak | 8th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 103 | TD | Ken Roehr | Ken Roehr | 9th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 105 | A | Butler | Hal Butler | 11th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 133 | A | Richard Quint | Richard Quint | 15th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 135 | TD | William Steube | William Steube | 15th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 143 | TD | Pat Fahey | Patrick Fahey | 4th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 150 | A | Robert Parker | Robert Parker | 14th |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 155 | TC Special | Harold Erb | | 3rd |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 159 | TF | Bob Newman | Bob Newman | 16th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 169 | A | George Demetras | George Demetras | DNA |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 170 | TD | Nick Jay | Nick Jay | DNA |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 218 | TD Mk II | Caselton | Harold Armes | 12th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 237 | TD Mk II | Sam Taylor | Sam Taylor | 5th |
| 8.2.1958 | Preliminary Pomona [Production 1.5] | 251 | A | Jim Chaffee | Jim Chaffee | 12th |
| 8.2.1958 | Preliminary Pomona [Production 1.3] | 710 | TF | Harold Dixon | Harold Dixon | DNA |
| 9.2.1958 | Pomona [S1.5] | 8 | Special | Dusty Miller | Dusty Miller | 8th |
| 9.2.1958 | Consolation Pomona [Modified] | 8 | Special | Dusty Miller | Dusty Miller | 6th |
| 9.2.1958 | Pomona [S1.5] | 25 | Special | Jim Chaffee | Jim Chaffee | DNF |
| 9.2.1958 | Pomona [Ladies] | 25 | Special | Dot Chaffee | Jim Chaffee | DNA |
| 9.2.1958 | Pomona [S1.5] | 26 | Special | Alan Kerns | Bud Hand | 15th |
| 9.2.1958 | Pomona [Ladies] | 28 | TD | | Georges Lachman | DNA |
| 9.2.1958 | Pomona [Production MG] | 28 | TD | George Lachman | Georges Lachman | 18th |
| 9.2.1958 | Pomona [Ladies] | 32 | TD | | Cliff Hensley | DNA |
| 9.2.1958 | Pomona [Production MG] | 32 | TD | Cliff Hensley | Cliff Hensley | DNA |
| 9.2.1958 | Pomona [Production MG] | 39 | TF | Greg Krem | Greg Krem | 20th |
| 9.2.1958 | Pomona [Ladies] | 39 | TF | | Greg Krem | DNA |
| 9.2.1958 | Pomona [Production MG] | 41 | A | Bruce Middaugh | Bruce Middaugh | DNA |
| 9.2.1958 | Pomona [Production MG] | 46 | A | John Free | A. M. Walker | DNS |
| 9.2.1958 | Pomona [Production MG] | 61 | TD | Phil Carter | Phil Carter | 16th |
| 9.2.1958 | Pomona [Ladies] | 61 | TD | | Phil Carter | DNA |
| 9.2.1958 | Pomona [Production MG] | 62 | A | John Lumkin | J. E. Lumkin | DNF |
| 9.2.1958 | Pomona [Production MG] | 67 | A | Elliot Forbes-Robinson | Ken Swanson | 1st |
| 9.2.1958 | Pomona [Production MG] | 77 | A | Mark Sanders | Mark Sanders | 6th |
| 9.2.1958 | Pomona [Production MG] | 79 | A | Vernon Stephan | Vernon Stephan | 14th |
| 9.2.1958 | Pomona [Ladies] | 89 | A | Ruth Doushkess | Ray Pickering | DNA |
| 9.2.1958 | Pomona [Production MG] | 89 | A | Ray Pickering | Ray Pickering | 2nd |
| 9.2.1958 | Pomona [Ladies] | 92 | TD Mk II | | Jack Cleghorn | DNA |
| 9.2.1958 | Pomona [Production MG] | 92 | TD Mk II | Jack Gleghorn | Jack Gleghorn | DNF |
| 9.2.1958 | Pomona [Production MG] | 101 | TF | Jack Bleak | Jack Bleak | 12th |
| 9.2.1958 | Pomona [Ladies] | 101 | TF | | Jack Bleak | DNA |
| 9.2.1958 | Pomona [Production MG] | 103 | TD | Ken Roehr | Ken Roehr | 13th |
| 9.2.1958 | Pomona [Ladies] | 103 | TD | | Ken Roehr | DNA |
| 9.2.1958 | Pomona [Ladies] | 105 | A | Ruth Doushkess | Hal Butler | DNA |
| 9.2.1958 | Pomona [Production MG] | 105 | A | Dillaway | Hal Butler | 15th |
| 9.2.1958 | Pomona [Production MG] | 126 | A | Ed Stewart | Ed Stewart | 7th |
| 9.2.1958 | Pomona [Production MG] | 128 | A | Robert Scurlock | Robert Scurlock | 3rd |
| 9.2.1958 | Pomona [Production MG] | 133 | A | Richard Quint | Richard Quint | DNF |
| 9.2.1958 | Pomona [Ladies] | 135 | TD | | Wm. Steube | DNA |
| 9.2.1958 | Pomona [Production MG] | 135 | TD | William Steube | William Steube | 19th |
| 9.2.1958 | Pomona [Production MG] | 143 | TD | Pat Fahey | Patrick Fahey | 10th |
| 9.2.1958 | Pomona [Ladies] | 143 | TD | | Patrick Fahey | DNA |
| 9.2.1958 | Pomona [Production MG] | 150 | A | Robert Parker | Robert Parker | 9th |
| 9.2.1958 | Pomona [S+1.5] | 155 | TC Special | Harold Erb | | DNF |
| 9.2.1958 | Pomona [Ladies] | 155 | Special | Caroline Tremaine | | 8th |
| 9.2.1958 | Pomona [Production MG] | 159 | TF | Bob Newman | Bob Newman | DNF |
| 9.2.1958 | Pomona [Ladies] | 159 | TF | Rose Nelson | Bud Newman | 11th |
| 9.2.1958 | Pomona [Production MG] | 169 | A | George Demetras | George Demetras | DNA |
| 9.2.1958 | Pomona [Production MG] | 170 | TD | Nick Jay | Nick Jay | DNA |
| 9.2.1958 | Pomona [Ladies] | 170 | TD | | Nick Jay | DNA |
| 9.2.1958 | Pomona [Production MG] | 194 | A | Frank Nichols | Frank Nichols | 8th |
| 9.2.1958 | Pomona [Ladies] | 218 | TD Mk II | | Harold Armes | DNA |
| 9.2.1958 | Pomona [Production MG] | 218 | TD Mk II | Armes | Harold Armes | 17th |
| 9.2.1958 | Pomona [Production MG] | 226 | A | John Snider | John Snider | 5th |
| 9.2.1958 | Pomona [Ladies] | 237 | TD Mk II | Norah Taylor | Sam Taylor | 7th |
| 9.2.1958 | Pomona [Production MG] | 237 | TD Mk II | Sam Taylor | Sam Taylor | 11th |
| 9.2.1958 | Pomona [Ladies] | 251 | A | Dot Chaffee | Jim Chaffee | 6th |
| 9.2.1958 | Pomona [Production MG] | 251 | A | Jim Chaffee | Jim Chaffee | 4th |
| 9.2.1958 | Pomona [Production MG] | 710 | TF | Harold Dixon | Harold Dixon | DNA |
| 9.2.1958 | Guadalajara [1.5] | | A | Luis Gonzalez Hernandez | | 2nd |
| 9.2.1958 | Guadalajara [1.5] | | A | Amado Pedrero | | 3rd |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 4 | A | Keith Marks | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [FP+GP+HP+HM] | 4 | A | Keith Marks | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 9 | A | George Peck | | 7th |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 19 | A | Ross Durant | | 5th |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 28 | A | Dick Richard | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 33 | A | E. D. Martin | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 72 | TD | Felix Brunot | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 77 | A | Parsons / Hardin | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | 94 | A | Arch Means | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [Novice 2] | 601? | A | Otis Culbreth | | raced |
| 16.2.1958 | Willow Springs [Production 1.6] | | A | Fred Heffington | | 1st |
| 16.2.1958 | Willow Springs [Modified] | | Special | Barton Haskell | | 2nd |
| 16.2.1958 | Willow Springs [Ladies] | | Special | H. C. Hoppe | | 3rd |
| 16.2.1958 | Willow Springs [Ladies] | | A | Barbara Scott | | 2nd |
| 16.2.1958 | Willow Springs [Production 1.6] | | A | Don Stewart | | 2nd |
| 16.2.1958 | Willow Springs [Production 1.6] | | A | Bill Hunt | | DNF |
| 16.2.1958 | SCCA Regional New Smyrna Beach [FP+GP+HP+HM] | | A | Sheldon Dobkin | | 6th |
| 16.2.1958 | Willow Springs [Production 1.6] | | | Don Lowe | | DNF |
| 16.2.1958 | Willow Springs [Production 1.6] | | A | Jon Van Rhyn | | 3rd |
| 16.2.1958 | Willow Springs [Main] | | Special | Barton Haskell | | ?th |