| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 15 | | Terry Edmeston | Terry Edmeston | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 15 | | Terry Edmeston | Terry Edmeston | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 26 | | Denise Woolley | Miss Denise Woolley | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 64 | | Bob Dack | Bob Dack | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 85 | | J. Carefoot | J. Carefoot | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 85 | | J. Carefoot | J. Carefoot | DNA |
| 7.6.1958 | LCCC Oulton Park [S1.5] | 85 | | J. Carefoot | R. J. Carefoot | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap A] | 93 | | Tommy Entwistle | Tom Entwistle | 2nd |
| 7.6.1958 | LCCC Oulton Park [S1.5] | 142 | | Doreen Harris | Mrs. Doreen Harris | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 1 | | Otto Klein | | 4th |
| 8.6.1958 | Preliminary Lawrenceville [FP+GP+HM] | 1 | | Otto Klein | | 5th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 6 | | George Schaab | | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 13 | | C. William Allen | | 5th |
| 8.6.1958 | Preliminary Lawrenceville [FP+GP+HM] | 13 | | C. William Allen | | 6th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 24 | | James Stevens | | 10th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | 49 | | Tom Gerber | | raced |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 53 | | Dick Malone | | 7th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 56 | | John Hunter | | DNF |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | 59 | | Allan Crawford | | raced |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | 60 | | Harold Krech | | raced |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 69 | | Dan Donoghue | | DNA |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 80 | | Don Urian | | 5th |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 86 | | Kerr / Stores | | DNA |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 90 | | Alan Dillenberg | | 9th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | 101 | | Bob Jones | | raced |
| 8.6.1958 | SCCA Regional Thompson [FP+GP+HM+Sedan] | 127 | | Dennis Miller | | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 177 | | Ron Letellier | | 6th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | | | Bob Nation | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | | | James Binford | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 7] | | | Louis Heuss | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 4] | | | Bob Nation | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 4] | | | Louis Heuss | | ?th |
| 14.6.1958 | Preliminary Lime Rock [GT] | 90 | | Alan Dillenberg | | 14th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 6 | | Sherman Decker | | 3rd |
| 15.6.1958 | SCCA National Lime Rock [FP] | 18 | | Dan Donoghue | | 8th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 27 | | Don Miller | | 7th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 51 | | James Stevens | | 9th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 78 | | George Schaab | | 10th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 81 | | John Jordan | | 25th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 90 | | Alan Dillenberg | | 11th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 114 | | Huntley Perry | | 13th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 157 | | George Schillreff | | 19th |
| 15.6.1958 | Preliminary Laguna Seca [HM+Production I] | 157 | | George Schillreff | | 3rd |
| 15.6.1958 | SCCA Regional Laguna Seca [FM+GM+FIII] | 158 | | Dennis Riley | | 10th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 180 | | Don Urian | | 6th |
| 15.6.1958 | Preliminary Laguna Seca [HM+Production I] | | | Ed Leslie | | 2nd |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 5 | | Grant Crenshaw | Grant Crenshaw | 19th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 27 | | Peter Hall | Peter Hall | DNA |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 55 | | Roger Simonetti | Roger Simonetti | 14th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 73 | | Ron Letellier | | 11th |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 20 | | Joyce Botkin | Robert F. Botkin | 8th |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 212 | | Laura Dasey | Homer Daisey | 7th |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 5 | | Henry Van Deusen | Henry Van Deusen | 3rd |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 5 | | Henry Van Deusen | Henry Van Deusen | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 12 | | John Hunter | John Hunter, Jr. | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 20 | | Robert Botkin | Robert F. Botkin | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 20 | | Robert Botkin | Robert Botkin | DNF |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 26 | | Fred Reynolds | Fred Reynolds | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 26 | | Fred Reynolds | Fred Reynolds | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 31 | | Richard Soulsby | Dick Soulsby | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 38 | | Sherman Decker | Sherman Decker | 1st |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 38 | | Sherman Decker | Sherman L. Decker | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 42 | | Monty Allen | Monty Allen | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 42 | | Monty Allen | Monty Allen | DNF |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 50 | | Edward Richard, Jr. | Ed Richard Jr. | 8th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 51 | | Ronald Ference | Ronald F. Ference | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 51 | | Ronald Ference | Ronald Ference | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 56 | | Jack Paveling | Jack Paveling | 14th |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 56 | | Jack Paveling | Jack Paveling | 4th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 59 | | Johnny Boyd | Johnny Boyd | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 59 | | Johnny Boyd | Johnny Boyd | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 80 | | Dennis Miller | | 7th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 80 | | Dennis Miller | | 16th |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 83 | | Jack Terhaar | Jack TerHaar | 5th |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 86 | | Art Smith | Arthur Smith, Jr. | 9th |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 89 | | Richard Kinsey | Richard Kinsey | 10th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 98 | | Richard A. Smith | Richard A. Smith | DNA |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 114 | | George Valentine | Ecurio-Gonzales | 2nd |
| 27.6.1958 | Preliminary Watkins Glen [MG] | 212 | | Laura Dasey | Homer Daisey | 11th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 212 | | Homer Dasey | Homer Dasey | DNA |
| 28.6.1958 | Preliminary Riverside [MG] | 67 | | Elliot Forbes-Robinson | Ken Swanson | 3rd |
| 28.6.1958 | Preliminary Riverside [MG] | 79 | | Vernon Stephan | | DNF |
| 28.6.1958 | Preliminary Riverside [MG] | 89 | | Ray Pickering | Ray Pickering | 2nd |
| 28.6.1958 | Preliminary Riverside [MG] | 128 | | Robert Scurlock | | 1st |
| 28.6.1958 | Preliminary Riverside [MG] | | | Loyal Davies | Long Beach MG Car Club Racing Team | ?th |
| 29.6.1958 | Riverside [FP+GP] | 4 | | Mark Sanders | | DNF |
| 29.6.1958 | Riverside [FP+GP] | 15 | | Harold Greenberg | | DNF |
| 29.6.1958 | Riverside [FP+GP] | 22 | | Charles Berg | | DNF |
| 29.6.1958 | WJC Charterhall [S1.5] | 27 | | Jack Richmond | J. M. Richmond | DNA |
| 29.6.1958 | Riverside [FP+GP] | 64 | | Richard Quint | | 11th |
| 29.6.1958 | Riverside [FP+GP] | 67 | | Elliot Forbes-Robinson | Long Beach MG Car Club Racing Team (Ken Swanson) | 8th |
| 29.6.1958 | Riverside [Ladies] | 89 | | Ruth Doushkess | Ray Pickering | DNS |
| 29.6.1958 | Riverside [FP+GP] | 89 | | Ray Pickering | | DNF |
| 29.6.1958 | Riverside [FP+GP] | 100 | | Art Greycloud | | 13th |
| 29.6.1958 | Riverside [FP+GP] | 125 | | Jim Chaffee | | DNS |
| 29.6.1958 | Riverside [FP+GP] | 128 | | Robert Scurlock | | 7th |
| 29.6.1958 | St. Eugene [S1.6] | | | Ross de St. Croix | | 2nd |
| 4.7.1958 | Orange County [Production 1.6] | | | Jim Nieland | | 3rd |
| 4.7.1958 | Orange County [Ladies] | | | Barbara Scott | | 2nd |
| 5.7.1958 | LASC Green Acres [S1.5] | 100 | | Jack Paveling | | 2nd |