| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 1 | 100-6 | John Colgate | | 6th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 14 | 100 M | Vin Sardi | | 9th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 16 | 100-6 | Dick Thompson | | 1st |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 42 | Special | Joe Giubardo | | 15th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 72 | | John Holmes | | 5th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 76 | 100-6 | Don Morrison | | 10th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 86 | 100 M | Bob Hathaway | | 11th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 99 | 100 M | George Hively | George Hively | 24th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 130 | 100-6 MM | Chuck Parsons | Chuck Parsons | 20th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 163 | 100 S | Jack Breskovich | Jack Breskovich | 8th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 164 | 100 S | Robert Windhorst | Robert Windhorst | 11th |
| 1.6.1958 | Santa Barbara [BM+CM+DM+EM] | 180 | 100 | Bill Atkins | Charles Colwell | DNF |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 247 | 100-6 | Fred Spross | | 7th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 252 | 100 | James Coffin | James Coffin | 25th |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | | | | | DNF |
| 7.6.1958 | Put-In-Bay [GP+HP] | 23 | Sprite | Ralph Durbin | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 50 | 100 M | Julian Sutton | Julian Sutton | 1st |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 50 | 100 M | Julian Sutton | Julian Sutton | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 57 | 100 | J. Ashton | J. R. Ashton | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 116 | Sprite | K. E. M. Kaye | Soreton Eng. Services | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 125 | 100 | Ken Spellman | Ken Spellman | raced |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 125 | 100 | Ken Spellman | K. L. Spellman | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 133 | 100 | D. F. Clarke | D. F. Clarke | DNA |
| 7.6.1958 | Preliminary Eagle Mountain [race 2] | | 100 M | Laurence Johnson | | ?th |
| 7.6.1958 | Preliminary Eagle Mountain [race 2] | | 100-6 MM | R. L. Crownrich | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 2 | | Merritt Jagger | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 2 | | Merritt Jagger | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 14 | 100-6 | Kenneth Flynn | | DNA |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 18 | 100-6 | Harry Carter | | 3rd |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 40 | 100 | Jerry McDermott | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 44 | | Bob Clifford | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 44 | | Bob Clifford | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 46 | 100 M | Bob Thomas | | DNA |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 50 | 100 M | Candido DaMota | | 8th |
| 8.6.1958 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+GM] | 50 | 100 S | Karl Kopplin | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BM+CM+DM+EM+FM+GM] | 50 | 100 S | Karl Kopplin | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 51 | 100 M | Robert Shirey | | 10th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 72 | | R. E. Scyfried | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 72 | | R. E. Scyfried | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 78 | 100 | Ray Cover | | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 80 | 100-4 | Allan Barker | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 97 | 100 | R. Bachrach | | 11th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 121 | 100 | Pete Harrison | | DNA |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 247 | 100-6 | Fred Spross | | DNA |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 8] | | 100-6 MM | R. L. Crownrich | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 8] | | 100 M | Laurence Johnson | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 7 | Special | John Armanino | | DNF |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 11 | 100-6 | Dick Thompson | | 3rd |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 14 | 100-6 | Vin Sardi | | 8th |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 16 | 100 M | James Jackson | | 13th |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 19 | 100-6 | Robert C. Davidson | | 14th |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 40 | Special | Joe Giubardo | | 12th |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 64 | 100-6 | Mary Flockton | | 13th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 66 | 100-6 | Chuck Parsons | | 16th |
| 15.6.1958 | Preliminary Laguna Seca [Production II] | 66 | 100-6 | Chuck Parsons | | 3rd |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 72 | 100 | John Holmes | | DNF |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 76 | 100 M | Fred Moore | | 6th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 85 | 100-6 | William Kinchloe | | 11th |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 86 | 100 | Bob Hathaway | | 9th |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 117 | 100-6 | John Colgate | | 7th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 133 | 100 M | Dick Newhall | | 28th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 144 | 100 M | George Snively | | 10th |
| 15.6.1958 | Preliminary Laguna Seca [Production II] | 144 | 100 M | George Snively | | 1st |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 206 | 100-6 | Bert Smeeden | | 18th |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 247 | 100-6 | Fred Spross | | 11th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 252 | | James Coffin | | 22nd |
| 15.6.1958 | Prix de Paris [GT3.5+S1.0] | | | Collet | | 8th |
| 21.6.1958 | ADMC Crimond [Production Handicap] | 8 | 100 M | Julian Sutton | J. Sutton | DNA |
| 21.6.1958 | ADMC Crimond [Sports] | 8 | 100 M | Julian Sutton | J. Sutton | raced |
| 21.6.1958 | ADMC Crimond [S2.7] | 8 | 100 M | Julian Sutton | J. Sutton | 2nd |
| 21.6.1958 | ADMC Crimond [S2.7] | 17 | 100 S | W. A. Thompson | W. A. Thompson | 3rd |
| 21.6.1958 | ADMC Crimond [Sports] | 17 | 100 S | W. A. Thompson | W. A. Thompson | raced |
| 21.6.1958 | ADMC Crimond [Fastest Handicap] | 19 | 100 S | Ted Evans | B. L. Carlaw | 2nd |
| 21.6.1958 | ADMC Crimond [Sports] | 19 | 100 S | Ted Evans | B. L. Carlaw | 3rd |
| 21.6.1958 | ADMC Crimond [S2.7] | 19 | 100 S | Ted Evans | B. L. Carlaw | 1st |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 2 | | Don Feidt | Don Feidt | 18th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 14 | 100-6 | Gene Smiley | Gene Smiley | 22nd |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 25 | | David Stewart | | 14th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 41 | 100 M | R. W. Clifford | R. W. Clifford | DNA |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 44 | 100 M | Orlo Koenig | Orlo H. Koenig | DNF |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 46 | 100 M | Gordon Cornwell | Gordon Cornwell | DNF |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 47 | 100 M | John O'Connor | John O'Connor | 12th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 51 | 100 M | Edward Mull | Edward B. Mull, Jr. | 15th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 66 | 100-6 | Ralph Durbin | Ralph L. Durbin | 11th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 77 | 100 | Leonard Janke | Leonard Janke | DNA |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 78 | 100 M | Al Niblack | Albert Niblack | 13th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 86 | 100 M | Bob Hathaway | Robert L. Hathaway | DNF |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 10 | | Mrs. M. Schaffer | Dick Eklun | DNA |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 23 | | Betty McCarthey | Betty McCarthey | 5th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 10 | 100-6 | Dick Ecklund | Dick Ecklund | 4th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 16 | | Norman Webb | Norman Webb, Jr. | 10th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 23 | | Walter McCartney | Betty McCartney | 7th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 24 | 100-4 | Candido DaMota | Candido DaMota | 12th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 27 | | Tom Cullen | Tom Cullen | DNF |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 39 | 100 | Roger Harrison | | 9th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 39 | | Roger Harrison | Roger Harrison | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 62 | 100 S | Irwin Buxbaum | Irwin Buxbaum | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 102 | 100 | Gary Morgan | Gary Morgan | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 120 | 100 | J. O. Berry | James O. Berry, Jr. | DNA |
| 28.6.1958 | Preliminary Riverside [Novice] | 2 | | Max Gordon | | ?th |