| 11.5.1958 | Hawaii [S+1.6] | 8 | Special V8-60 | Gordon Hill | George Reeves | 22nd |
| 11.5.1958 | Hawaii [Match] | 8A | Special V8-60 | Gordon Hill | George Reeves | DNA |
| 11.5.1958 | Hawaii [Match] | 8A | Special | George Reeves | George Reeves | DNA |
| 11.5.1958 | Hawaii [S1.6] | 8A | Special | Gordon Hill | George Reeves | 18th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 53 | A | John Hoogs | John Hoogs | DNA |
| 11.5.1958 | Hawaii [Match] | 53 | A | John Hoogs | John Hoogs | DNA |
| 11.5.1958 | Hawaii [S1.6] | 53 | A | John Hoogs | John Hoogs | 17th |
| 11.5.1958 | Hawaii [S1.6] | 59 | Special | Edith White | Edith White | DNA |
| 11.5.1958 | Hawaii [Match] | 59 | Special | Edith White | Edith White | DNA |
| 11.5.1958 | Hawaii [Match] | 59A | Special | Harry DeCastro | Harry DeCastro | DNA |
| 11.5.1958 | Hawaii [S1.6] | 59A | Special | Harry DeCastro | Harry DeCastro | 7th |
| 11.5.1958 | Targa Florio | 78 | A | Alfredo Fondi | | DNA |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 89 | Special R2 | Jack Duncan | Jack Duncan | DNA |
| 11.5.1958 | Hawaii [S1.6] | 101 | A | Jack Garner | Jack Garner | 12th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 101 | A | Jack Garner | Jack Garner | DNA |
| 11.5.1958 | Hawaii [Match] | 101 | A | Jack Garner | Jack Garner | DNA |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 118 | A | Wallace Whitcomb | Wallace Whitcomb | DNA |
| 11.5.1958 | Hawaii [Match] | 118 | A | Wallace Whitcomb | Wallace Whitcomb | DNA |
| 11.5.1958 | Hawaii [S1.6] | 118 | A | Wallace Whitcomb | Wallace Whitcomb | 16th |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 189 | TD | Malcolm Shroyer | Malcolm C. Shroyer | 11th |
| 15.5.1958 | Aspern [GT1.6] | 67 | A | Peter Hammerschmidt | P. Hammerschmidt | raced |
| 15.5.1958 | Aspern [GT1.6] | 72 | A | Robert Kranz | Robert Kranz | DNA |
| 18.5.1958 | GP Spa [GT2.0] | 28 | A | Romain | | ?th |
| 18.5.1958 | SCCA National Cumberland [FP] | 44 | A | Duncan Black | Duncan Black | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 67 | A | Fred Reynolds | Fred Reynolds | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 68 | A | J. Robb Wilson | J. Robb Wilson | DNA |
| 18.5.1958 | SCCA National Cumberland [GP+HP] | 71 | TC | Charles Henry | Charles A. Henry | raced |
| 18.5.1958 | SCCA National Cumberland [FP] | 79 | A | Phil Forsyth | Philip Forsyth | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 79 | A | Forsyth | Philip Forsyth | DNA |
| 18.5.1958 | SCCA National Cumberland [GP+HP] | 85 | TD | Morrow Decker | Dor S. M. Decker, Jr. | raced |
| 18.5.1958 | SCCA National Cumberland [FP] | 92 | A | Edward A. Patterson | Edward A. Patterson | DNA |
| 18.5.1958 | SCCA National Cumberland [GP+HP] | 97 | TF | John Tame | John S. Tame | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 107 | A | Ben Fowke | Benj. G. S. Fowke, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 109 | A | Walt Hoover | Walter R. Hoover | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 114 | A | Huntley Perry | Huntley H. Perry | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 121 | A | Laura Dasey | Homer H. Dasey | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 121 | A | Homer Dasey | Homer H. Dasey | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 126 | A | Joyce Botkin | Robert F. Botkin, MD. | DNA |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 139 | A | Roger Walker | Roger B. Walker | DNA |
| 18.5.1958 | SCCA National Cumberland [GP+HP] | 142 | TF | Al Weaver | Al Weaver | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 147 | A | Archie Meihls | Archie Meihls | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 158 | A | David Muir | L. E. Robinson | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 174 | A | Gene Parsons | George Eugene Parsons | DNA |
| 18.5.1958 | LISCA Lime Rock [FP] | | A | Paul Romano | | ?th |
| 18.5.1958 | LISCA Lime Rock [FP] | | A | Sherman Decker | | ?th |
| 18.5.1958 | LISCA Lime Rock [GP] | | TC | Bob Muncie | | ?th |
| 18.5.1958 | LISCA Lime Rock [GP] | | TC | Charles Callanan | | ?th |
| 18.5.1958 | LISCA Lime Rock [GP] | | TD | Arch McNeill | | ?th |
| 18.5.1958 | LISCA Lime Rock [FP] | | A | Henry Van Deusen | | ?th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 51 | | Harry Ratcliffe | | 14th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 55 | A | T. L. A. Burgess | | 8th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 57 | A | J. H. V. Cross | | 6th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 59 | A | K. Wilson | | 12th |
| 25.5.1958 | Hourglass Field [Novice] | | Special | Don Shattuck | | 1st |
| 25.5.1958 | GP des Frontières [GT2.0+TS1.0] | | A | Romain | | 4th |
| 25.5.1958 | Hourglass Field [Ladies] | | TD | Bonnie Bosley | | 3rd |
| 25.5.1958 | Hourglass Field [Ladies] | | A | Barb Nieland | | 2nd |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 32 | A | Bill Beedie | Ecurie Midge Racing Team | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 36 | A | Ken Mackenzie | Ecurie Chiltern | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 37 | A | Chris Tooley | C. P. Tooley | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 38 | A | Bob Vincent | R. Vincent | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 39 | A | David Dixon | Ecurie Chiltern | DNA |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 39 | A | David Dixon | Ecurie Chiltern | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 40 | A | Tommy Entwistle | T. Entwistle | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 42 | A | D. J. Hayles | Ecurie Chiltern | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 68 | A | J. A. P. Trafford | J. A. P. Trafford | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 0 | TF | Jim Honeter | Jim Honeter | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 00 | A | Loyal Davies | Loyal Davies | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 1 | A | John Free | A. M. Walker | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 3 | TD | Cliff Hansley | Cliff Hansley | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 4 | A | Mark Sanders | Mark Sanders | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 7 | TD | Watkins / Gruber | Vincent Martinelli | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 25 | A | Dot Chaffee | Jim Chaffee | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 25 | A | Jim Chaffee | Jim Chaffee | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 34 | TD | Doug Sharman | Doug Sharman | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 42 | TC | T. C. Teague | T. C. Teague | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 43 | TD | Tom Yearian | Tom Yearian | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 62 | A | John Lumkin | John Lumkin | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 67 | A | Elliot Forbes-Robinson | Ken Swanson | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 79 | A | Vernon Stephan | Vernon Stephan | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 89 | A | Ray Pickering | Ray Pickering | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 93 | A | Charley Monte | Charley Monte | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 98 | A | Richard Quint | Richard Quint | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 105 | A | Ron O'Dell | Ronald O'Dell | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 108 | TF 1500 | Ann Moore | Gary Moore | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 108 | TF 1500 | Gary Moore | Gary Moore | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 123 | A | Robert Allen | Robert Wm. Allen | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 128 | A | Robert Scurlock | Robert Scurlock | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 143 | TD | Pat Fahey | Pat Fahey | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 150 | A | Robert Parker | Robert Parker | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 153 | TD | Art White | Art White | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 155 | TC Special | Harold Erb | Carl Seidlitz | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 155 | TC | Janet Tremaine | Carl Seidlitz | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 168 | A | George Schillreff | George Schillreff | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 215 | A | Harold Greenberg | Harold Greenberg | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 220 | A | Dave Hetzler | Rick Kohler | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 237 | TD Mk II | Norah Taylor | Sam Taylor | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 269 | A | George Demetras | George Demetras | DNA |
| 31.5.1958 | Preliminary Santa Barbara [GP+HP] | 710 | TF | Harold Dixon | Harold (Phil) Dixon | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 712 | TF 1500 | Bill Dixon | Todd Evans | DNA |