| 12.1.1958 | Preliminary Miami [CP+DP+EP+GM] | 102 | | Charles Kurtz | | 2nd |
| 12.1.1958 | SCCA National Miami [CP+DP+EP+GM] | 102 | | Alan Patterson | | DQ |
| 22.3.1958 | 12 h Sebring | 48 | | Wyllie / Dietrich / Wyllie | Dr. M. R. J. Wyllie | DNS |
| 22.3.1958 | 12 h Sebring | 57 | | Baptista / Martin / Warren | Elva Engineering Co. | DNF |
| 22.3.1958 | 12 h Sebring | 77 | | Kurtz / Kammer / Patterson | Avant Corp. | DNF |
| 22.3.1958 | 12 h Sebring | 78 | | Milliken / Ripley / Argetsinger | Ripley Motor Co. | 28th |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 7 | | Millard Ripley | | 4th |
| 27.4.1958 | WJC Charterhall [R/S+500] | 20 | | Malcolm Wayne | M. J. Wayne | raced |
| 27.4.1958 | WJC Charterhall [S2.0] | 20 | | Malcolm Wayne | M. J. Wayne | raced |
| 27.4.1958 | WJC Charterhall [S1.5] | 20 | | Malcolm Wayne | M. J. Wayne | raced |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 62 | | Allen Doe | | 15th |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | 186 | | Frank Baptista | | 8th |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 35 | | Frank Baptista | | 1st |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 35 | | Frank Baptista | | 1st |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 37 | | Charles Kurtz | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 37 | | Charles Kurtz | | ?th |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 6 | | Chuck Dietrich | Charles H. Dietrich, Jr. | 3rd |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 29 | | Allen Doe | Allen Doe | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 35 | | Frank Baptista | Continental Motors, Ltd. | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 37 | | Charles Kurtz | Charles T. Kurtz III | raced |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 78 | | Millard Ripley | Millard G. Ripley | 2nd |
| 26.5.1958 | NSCC Mallory Park [S1.5] | 23 | | Tom Shaddick | Brimotors | DNA |
| 31.5.1958 | Novice Dunkirk [CM+EM+GM+HM+BP+CP+DP] | 78 | | Donald Peters | | 1st |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 162 | | Allen Doe | | 11th |
| 1.6.1958 | SCCA Regional Dunkirk [Ladies] | 6 | | Suzy Dietrich | | 1st |
| 1.6.1958 | GP Dunkirk | 57 | | Charles Kurtz | | 3rd |
| 1.6.1958 | SCCA Regional Dunkirk [FM+GM+HM] | 57 | | Charles Kurtz | | 2nd |
| 1.6.1958 | SCCA Regional Dunkirk [FM+GM+HM] | 78 | | Millard Ripley | | DNF |
| 1.6.1958 | GP Dunkirk | 171 | #100/27 | Hubert McPhail | | 7th |
| 1.6.1958 | SCCA Regional Dunkirk [FM+GM+HM] | 171 | #100/27 | Hubert McPhail | | 5th |
| 1.6.1958 | La Junta [Ladies] | | | Grace Harris | Bill Ong | DNS |
| 8.6.1958 | SCCA Regional Lawrenceville [BM+CM+DM+EM+FM+GM] | 86 | | Frank Campbell | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+GM] | 86 | | Frank Campbell | | ?th |
| 22.6.1958 | 24 h Le Mans | 55 | | | Elva | DNA |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 57 | | Charles Kurtz | Chas. T. Kurtz | 15th |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 86 | | Frank Campbell | Frank Campbell | 10th |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 96 | | Suzy Dietrich | Suzy Dietrich | 1st |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 96 | | Chuck Dietrich | | 4th |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 178 | | Millard Ripley | | 5th |
| 5.7.1958 | SCCA National Lime Rock [DP+GM] | 57 | | Charles Kurtz | | 3rd |
| 5.7.1958 | LASC Green Acres [S1.5] | 171 | #100/27 | Hubert McPhail | Hubert D. McPhail | 2nd |
| 12.7.1958 | BRSCC Full Sutton [SR/R] | 33 | | Malcolm Wayne | | 12th |
| 12.7.1958 | BRSCC Full Sutton [SR] | 33 | | Malcolm Wayne | | 11th |
| 13.7.1958 | Traverse City [S1.5] | | | Chuck Dietrich | | DNF |
| 19.7.1958 | Berwick [Novice] | 60 | | Alfred Zantzinger | | 1st |
| 19.7.1958 | Berwick [GM+HM] | 97 | | Albert Foster | | 1st |