| 10.5.1958 | Novice Tracy [Modified] | 10 | | John Aramino, Jr. | John Aramino, Jr. | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 25C | 100 M | J. R. Flach | Ecurie Pegasus | 14th |
| 10.5.1958 | Novice Tracy [Production +1.6] | 74 | | Fred Wood | Frederick E. Wood | DNA |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 130 | 100 M | Merle Runolfson | Merle L. Runolfson | DNA |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 130 | 100 | Ronnie Berryman | Ronnie Berryman | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 206 | 100 S | Bert Smeeden | Bert Smeeden | DNA |
| 11.5.1958 | Hawaii [Match] | 1 | 100-6 MM | Dexter Whitten | Dexter Whitten | ?th |
| 11.5.1958 | Hawaii [Production +1.6] | 1 | 100-6 MM | Dexter Whitten | Dexter Whitten | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 1 | 100-6 MM | Dexter Whitten | Dexter Whitten | DNF |
| 11.5.1958 | Hawaii [Locals] | 1A | | Norman Gedge | Norman Gedge | 15th |
| 11.5.1958 | Hawaii [S+1.6] | 1A | | Norman Gedge | Norman Gedge | 16th |
| 11.5.1958 | Hawaii [Match] | 1A | | Dan Vida | Norman Gedge | DNA |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 2 | | Chuck Parsons | | 6th |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 10 | Special | John Armanino | | raced |
| 11.5.1958 | Hawaii [S+1.6] | 12 | | Pete Wilson | Peter Wilson | DNA |
| 11.5.1958 | Hawaii [Match] | 12 | | Pete Wilson | Peter Wilson | DNA |
| 11.5.1958 | Hawaii [Production +1.6] | 12 | | Pete Wilson | Peter Wilson | DNA |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 42 | 100 Special | Mick Marston | Mick Marston | 9th |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 48 | | Prudence Baxter | G. Scott Baxter | DNA |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 48 | | Scott Baxter | G. Scott Baxter | DNA |
| 11.5.1958 | Hawaii [Locals] | 82 | | Bob Burns | | 18th |
| 11.5.1958 | Hawaii [S+1.6] | 82 | | Bob Burns | | 21st |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 130 | 100 M | Merle Runolfson | Merle L. Runolfson | 5th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 130 | 100 M | Ronnie Berryman | Ronnie Berryman | 10th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 144 | 100 M | George Snively | Dr. George Snively | DNA |
| 11.5.1958 | Hawaii [Locals] | 150 | | Henk Schiller | Henry M. Schiller | 12th |
| 11.5.1958 | Hawaii [S+1.6] | 150 | | Henk Schiller | Henry M. Schiller | 19th |
| 11.5.1958 | Hawaii [Match] | 150 | | Henk Schiller | Henry M. Schiller | DNA |
| 11.5.1958 | Hawaii [Production +1.6] | 150 | | Henk Schiller | Henry M. Schiller | DNA |
| 11.5.1958 | Hawaii [Locals] | 158 | | F. Murakami | | 25th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 206 | 100 S | Bert Smeeden | | 11th |
| 15.5.1958 | Aspern [GT+1.6] | 38 | | Adolph C. Rosner | A. C. Rosner | raced |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 17 | 100-6 | Dick Thompson | David L. Herson | ?th |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 34 | 100 | Robert Bochroch | Robert L. Bochrock | DNA |
| 18.5.1958 | GP Spa | 40 | | Hirson | | DNF |
| 18.5.1958 | SCCA National Cumberland [BM+CM+DM] | 42 | 100 | Dick Stockton | Richard S. Stockton | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 50 | | Richard Cosgrove | Richard D. Cosgrove | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 66 | 100-6 | Ralph Durbin | Ralph L. Durbin | ?th |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 72 | | John Holmes | John W. Holmes | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 73 | 100-6 | Fred Moore | Col. Frederick L. Moore | ?th |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 86 | 100 | Bob Hathaway | Robert L. Hathaway | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 122 | | Mike Rothschild | Michael G. Rothschild | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 162 | | Charles Byerly | Charles H. Byerly | DNA |
| 18.5.1958 | LISCA Lime Rock [DP] | | 100 | Len Franke | | 3rd |
| 18.5.1958 | LISCA Lime Rock [DP] | | 100 M | Bob Thomas | | 1st |
| 18.5.1958 | LISCA Lime Rock [DP] | | 100 | G. Smith | | 2nd |
| 24.5.1958 | BRSCC Full Sutton [PS] | 72 | 100 | I. Banks | | 10th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 73 | 100 S | A. H. Field | | 2nd |
| 24.5.1958 | BRSCC Full Sutton [PS] | 77 | 100 S | Michael Kellett | | raced |
| 24.5.1958 | BRSCC Full Sutton [PS] | 78 | 100 | M. L. Bailey | | 13th |
| 26.5.1958 | Autosport Mallory Park [PS+1.6/PS1.0] | 48 | 100 S | C. Hanson | Team Triple 'S' | DNA |
| 26.5.1958 | Autosport Mallory Park [PS+1.6/PS1.0] | 49 | 100 S | Michael Kellett | Team Triple 'S' | DNA |
| 26.5.1958 | Autosport Mallory Park [PS+1.6/PS1.0] | 52 | 100 S | Dick Protheroe | E. Protheroe | DNA |
| 26.5.1958 | Autosport Mallory Park [PS+1.6/PS1.0] | 53 | 100 | W. A. Bemrose | W. A. W. Bemrose | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Novice] | 2 | 100 | Max Gordon | Maxwell Gordon | raced |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 2 | 100 | Gordon / Patterson | Maxwell Gordon | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 9 | 100 S | Bill Friedauer | Bill Friedauer | DNA |
| 31.5.1958 | Novice Dunkirk [CM+EM+GM+HM+BP+CP+DP] | 10 | 100-6 MM | Dick Ecklund | | 7th |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 22 | 100 S | Ben Bloemendaal | Ben Bloemendaal | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 35 | 100 | Frank Latta | Frank M. Latta | DNA |
| 31.5.1958 | Preliminary La Junta [Production+HM] | 46 | | Gordon Gresham | | 23rd |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 55 | 100 S | Roland Berry | Roland Berry | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 74 | 100 | Earl Drew | Earl Drew | DNA |
| 31.5.1958 | Novice Dunkirk [CM+EM+GM+HM+BP+CP+DP] | 75 | 100 | Gary Morgan | | 11th |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 94 | 100 | Bob Young | Robert J. Young | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 95 | 100-6 | Thomas O'Neill | Thomas O'Neill | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 99 | 100 M | George Hively | George Hively | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 130 | 100-6 MM | Chuck Parsons | Chuck Parsons | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 163 | 100 S | Jack Breskovich | Jack Breskovich | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 164 | 100 S | Robert Windhorst | Robert Windhorst | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 164 | 100 S | Barbara Windhorst | Robert Windhorst | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 180 | 100 | Bill Atkins | Charles Colwell | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 252 | 100 | James Coffin | James Coffin | DNA |
| 31.5.1958 | LASC Green Acres [S/GT2.7] | | | Stan Ward | | 2nd |
| 31.5.1958 | LASC Green Acres [S/GT2.7] | | | Dave Hennessey | | 3rd |
| 31.5.1958 | ICNSCC Deer Park [Production +1.5] | | 100 | Dwight Goffinet | | ?th |
| 31.5.1958 | ICNSCC Deer Park [Formula Libre] | | 100 | Dwight Goffinet | | 5th |
| 31.5.1958 | LASC Green Acres [S/GT+2.6] | | 100-6 | Durbin | | 3rd |
| 31.5.1958 | LASC Green Acres [S/GT2.7] | | 100-6 | Ralph Durbin | | 1st |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 2 | 100 | Max Gordon | Maxwell Gordon | DNF |
| 1.6.1958 | Santa Barbara [BM+CM+DM+EM] | 9 | 100 S | Bill Friedauer | Bill Friedauer | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 10 | 100-6 MM | Dick Ecklund | | 2nd |
| 1.6.1958 | GP Dunkirk | 10 | 100-6 MM | Dick Ecklund | | 9th |
| 1.6.1958 | SCCA Regional Dunkirk [Ladies] | 10 | 100 M | Ellen Schaefer | | 7th |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | 17 | | Bruce Harlow | | 12th |
| 1.6.1958 | GP Dunkirk | 18 | 100-6 | Norman Webb | | 16th |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 18 | 100 | Norman Webb | | 7th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 22 | 100 S | Ben Bloemendaal | Ben Bloemendaal | DNS |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 35 | 100 | Frank Latta | Frank M. Latta | 22nd |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | 46 | | Gordon Gresham | | 10th |
| 1.6.1958 | Santa Barbara [BM+CM+DM+EM] | 55 | 100 S | Roland Berry | Roland Berry | DNA |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 74 | 100 | Earl Drew | Earl Drew | 23rd |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 75 | 100 | Gary Morgan | | 10th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 94 | 100 | Bob Young | Robert J. Young | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 95 | | Walter McCartney | | DNF |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 95 | 100-6 | Thomas O'Neill | Thomas O'Neill | 21st |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 99 | 100 | Irwin Buxbaum | | DNF |
| 1.6.1958 | SCCA Regional Dunkirk [Ladies] | 99 | 100 | Ruth Luedeke | | 5th |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | 122 | | Robert Terrill | | 11th |
| 1.6.1958 | Santa Barbara [Ladies] | 164 | 100 S | Barbara Windhorst | Robert Windhorst | DNA |