| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 25 | #0650MDTR | Pete Lovely | | 6th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 74 | #0634MDTR | John Quackenbush | | 11th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 25 | #0650MDTR | Pete Lovely | | 4th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 74 | #0634MDTR | John Quackenbush | | 8th |
| 26.1.1958 | 1000 km Buenos Aires | 34 | #0620MDTR | Munaron / Mantovani | priv. | 6th |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 211 | #0636MDTR | Richie Ginther | John von Neumann | 1st |
| 9.2.1958 | Pomona [S+1.5] | 211 | #0636MDTR | Richie Ginther | John von Neumann | 1st |
| 9.2.1958 | Guadalajara | | #0636MDTR | Richie Ginther | | DNA |
| 16.2.1958 | SCCA Regional New Smyrna Beach [Modified+BP+CP+DP+EP] | 333 | #0642MDTR | Lloyd Casner | | 2nd |
| 16.2.1958 | Preliminary New Smyrna Beach [Modified] | 333 | #0642MDTR | Lloyd Casner | | 2nd |
| 24.2.1958 | GP Cuba | 46 | #0652MDTR | Chester Flynn | | 24th |
| 24.2.1958 | GP Cuba | | | Bruce Kessler | | 14th |
| 2.3.1958 | SCCA Regional Phoenix [S+1.5] | 21 | | Bob Oker | | 11th |
| 2.3.1958 | SCCA Regional Phoenix [S+1.5] | 211 | #0636MDTR | Richie Ginther | | 2nd |
| 2.3.1958 | SCCA Regional Phoenix [Main] | 211 | #0636MDTR | Richie Ginther | | 1st |
| 9.3.1958 | SCCA Regional Boca Raton [CM+DM+EM+FM+GM+BP+CP+DP] | 34 | #0642MDTR | Lloyd Casner | | 3rd |
| 9.3.1958 | Preliminary Boca Raton [CM+DM+EM+FM+GM] | 34 | #0642MDTR | Lloyd Casner | | 3rd |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 12 | #0650MDTR | Willie Daetwyler | John von Neumann | DNF |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 211 | #0636MDTR | Weiss | John von Neumann | 5th |
| 13.4.1958 | Coppa Shell Monza | | #0640MDTR | Franco Cortese | Franco Cortese | 5th |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | 7 | #0634MDTR | John Quackenbush | | 7th |
| 27.4.1958 | GP Napoli | | #0608MDTR | Gino Munaron | | 3rd |
| 27.4.1958 | GP Napoli | | | Franco Cortese | | 6th |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 55 | #0636MDTR | Sam Weiss | Sam Weiss | 2nd |
| 11.5.1958 | Targa Florio | 86 | | Pandolfo / Faranda / Pandolfo | | DNS |
| 11.5.1958 | Targa Florio | 88 | #0620MDTR | Peduzzi / Siracusa | | DNF |
| 11.5.1958 | Hawaii [Match] | 211 | #0650MDTR | Richie Ginther | John von Neumann | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 211 | #0650MDTR | Richie Ginther | John von Neumann | 3rd |
| 15.5.1958 | Eläintarhanajo | 4 | #0610MDTR | Fred Geitel | | 10th |
| 15.5.1958 | Aspern [S+1.5] | 11 | #0608MDTR | Gino Munaron | Gino Munaron | raced |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 7 | #0634MDTR | John Quackenbush | J. V. Quackenbush | 2nd |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 112 | #0680MDTR | John von Neumann | John von Neumann | 2nd |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 112 | | Josie von Neumann | John von Neumann | DNA |
| 1.6.1958 | Santa Barbara [BM+CM+DM+EM] | 112 | #0680MDTR | John von Neumann | John von Neumann | DNA |
| 1.6.1958 | Santa Barbara [Ladies] | 112 | | Josie von Neumann | John von Neumann | 1st |
| 8.6.1958 | SCCA Regional Lawrenceville [BM+CM+DM+EM+FM+GM] | 7 | #0634MDTR | John Quackenbush | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+GM] | 7 | #0634MDTR | John Quackenbush | | ?th |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 46 | #0652MDTR | Chester Flynn | | 9th |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 55 | #0636MDTR | Sam Weiss | | DNF |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 17 | #0634MDTR | John Quackenbush | J. V. Quackenbush | 7th |
| 22.6.1958 | 24 h Le Mans | 25 | #0600MDTR | Rodriguez / Behra | North American Racing Team | DNF |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 34 | | Bob Walker | Bob Walker | 14th |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 42 | #0622MDTR | J. Robert Schroeder | | 21st |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 146 | #0652MDTR | Frank Baptista | | 8th |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 33 | #0650MDTR | Gordon Glyer | Gordon Glyer | 5th |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 55 | #0636MDTR | Sam Weiss | Sam Weiss | 3rd |
| 6.7.1958 | Baden Rock | | | Alfonso Catella | | 1st |
| 6.7.1958 | Circuito di Sassari | | | Franco Cortese | | 4th |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 26 | #0650MDTR | Gordon Glyer | Gordon Glyer | ?th |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 55 | | Sam Weiss | Sam Weiss | DNA |
| 10.8.1958 | Kanonloppet [Sports] | 10 | #0610MDTR | Bjarne Rehn | Scuderia Askolin | DNF |
| 16.8.1958 | Roskilde Ring [S+1.5] | 29 | #0610MDTR | Geitel | Scuderia Askolin | DNF |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 42 | #0622MDTR | J. Robert Schroeder | | 13th |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 46 | #0652MDTR | Ed Hugus | Ed Hugus | 3rd |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 43 | | Bob Walker | Bob Walker | DNA |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 43 | | Bob Walker | Bob Walker | DNA |
| 31.8.1958 | Courtland Trophy | | | William Kimberly | | 3rd |
| 7.9.1958 | 500 mile Road America | 13 | #0614MDTR | Place / Neill | | 5th |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 31 | #0614MDTR | James Place | | 3rd |
| 14.9.1958 | SCCA Regional Meadowdale [BM+CM+DM+BP] | 42 | #0622MDTR | J. Robert Schroeder | | raced |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 42 | #0622MDTR | J. Robert Schroeder | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 71 | #0634MDTR | John Quackenbush | | 2nd |
| 21.9.1958 | GP Angola | | | Maximino Correira | | raced |
| 28.9.1958 | ICNSCC Ellensburg [Modified] | 31 | | Frank Becker | | DNF |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 26 | #0650MDTR | Gordon Glyer | | 7th |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 55 | #0636MDTR | Sam Weiss | | 4th |
| 12.10.1958 | USAC Riverside | 26 | #0650MDTR | Gordon Glyer | Gordon Glyer | 12th |
| 12.10.1958 | SCCA Regional Wilmot [BM+CM+DM+EM+FM+GM] | 31 | #0614MDTR | James Place | | 3rd |
| 12.10.1958 | SCCA Regional Wilmot [BM+CM+DM+EM+FM+GM] | 42 | #0622MDTR | J. Robert Schroeder | | 8th |
| 12.10.1958 | USAC Riverside | 155 | #0636MDTR | Sam Weiss | Sam Weiss | DNF |
| 26.10.1958 | Minden [BM+CM+DM+EM] | 26 | #0650MDTR | Gordon Glyer | | 6th |
| 26.10.1958 | SCCA Regional Dothan [Main] | | | | | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [EM+FM] | 226 | #0650MDTR | Gordon Glyer | Gordie Glyer | 5th |
| 30.11.1958 | Hammond [Main] | | | William Kimberly | | raced |