| 22.6.1958 | Vallelunga [GT1.3] | | | "Galeno" | | 5th |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 82 | | Beulah Bailey | Barry Budlong, Jr. | 3rd |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 6 | | David Schiff | David T. Schiff | 3rd |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 14 | | David Elder | David Elder | 8th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 15 | | Norman Webb | Norman H. Webb | 7th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 22 | | Ken Long | Kenneth P. Long | 13th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 40 | | Ray Bloomer | Raymond Bloomer | 5th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 69 | | Ernst Scheeder | Ernst W. Scheeder | 9th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 82 | | Barry Budlong | Barry Budlong, Jr. | 2nd |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 106 | | Ernest Browning | | 19th |
| 29.6.1958 | Riverside [FP+GP] | 63 | | Willie West | | 9th |
| 29.6.1958 | Riverside [FP+GP] | 115 | | Frank Aldhous | | 5th |
| 29.6.1958 | Riverside [FP+GP] | 120 | | Klaus Bythiner | | 10th |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 9 | | Bob Grossman | | 4th |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 21 | | Allen Markelson | | 6th |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 32 | | Ray Anderson | | 1st |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 40 | | Ray Bloomer | | DNF |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 41 | | Ed Crooks | Ed Crooks | DNA |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 47 | | Hal Dougherty | | 15th |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 71 | | John Clapp | | 2nd |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 78 | | Norman Webb | | DNF |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 82 | | Barry Budlong | | 5th |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 83 | | Malcolm Donaldson | | 12th |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 114 | | Wyn Robertson | Robert Lyons | DNA |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 137 | | Stuart Shepp | | 8th |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 148 | | Steve Froines | Steve Froines | DNA |
| 5.7.1958 | SCCA National Lime Rock [GP+HP+HM] | 161 | | Jim Silberman | | 7th |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 166 | | Willam Cook | Willam Cook | DNA |
| 6.7.1958 | Västkustloppet [GT1.6] | 7 | | Bo Elmhorn | | 6th |
| 6.7.1958 | Västkustloppet [GT1.6] | 8 | | Olle Rehnvall | | 8th |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 41 | | Ed Crooks | Ed Crooks | 10th |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 148 | | Steve Froines | Steve Froines | 22nd |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 166 | | Willam Cook | Willam Cook | DNA |
| 12.7.1958 | Preliminary Traverse City [Novice 1.5] | | | Bill Tuttle | | 2nd |
| 13.7.1958 | Vila Real [GT] | | | Manuel Nogueira Pinto | | 2nd |
| 13.7.1958 | Traverse City [small cars] | | | Bill Tuttle | | 1st |
| 13.7.1958 | Traverse City [DP+EP+Veloce] | | | Doug Elzinga | Al Allin | 2nd |
| 19.7.1958 | Berwick [GP+HP] | 20 | | Jim Fitzgerald | | 1st |
| 19.7.1958 | Berwick [GP+HP] | | | Collier Miller | | ?th |
| 19.7.1958 | Berwick [Novice] | | | Collier Miller | | 1st |
| 20.7.1958 | SCCA Regional Thompson [GP] | 6 | | Jim Silberman | | 4th |
| 20.7.1958 | SCCA Regional Thompson [Production] | 32 | | Ray Anderson | | raced |
| 20.7.1958 | SCCA Regional Thompson [GP] | 32 | | Ray Anderson | | 2nd |
| 20.7.1958 | SCCA Regional Thompson [GP] | 57 | | David Schiff | | raced |
| 20.7.1958 | SCCA Regional Thompson [GP] | 71 | | John Clapp | | 3rd |
| 20.7.1958 | SCCA Regional Thompson [GP] | 83 | | Herbert Klay | | raced |
| 20.7.1958 | SCCA Regional Thompson [GP] | 141 | | Allan Lance | | raced |
| 20.7.1958 | SCCA Regional Thompson [GP] | 144 | | Ed Mowle | | raced |
| 20.7.1958 | SCCA Regional Thompson [GP] | 192 | | V. Biondo | | raced |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 81 | | Rudolf Wilhelm Moser | | 3rd |
| 3.8.1958 | SCCA Regional Shelton [PS1.5] | 82 | | Don Tindall | | 1st |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 82 | | Denise McCluggage | | 7th |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 84 | | Marcel Stern | | 2nd |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 89 | | Kurt Ahrens | | 4th |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 90 | | Horst Estler | | 6th |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 91 | | Hans-Helmuth Hespen | | 8th |
| 3.8.1958 | Rheinland Nürburgring [GT1.3] | 93 | | Herbert Schultze | | 1st |
| 3.8.1958 | SCCA Regional Shelton [PS1.5] | 141 | | Ed Crooks | | 3rd |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 148 | | Steve Froines | Steve Froines | 8th |
| 3.8.1958 | Preliminary Minden [MGA+AH+Super+Veloce] | 263 | | Willie West | Willie West | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 263 | | Willie West | Willie West | DNA |
| 3.8.1958 | Preliminary Minden [MGA+AH+Super+Veloce] | 297 | | Mike Roetnor | Michael Roetnor | ?th |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 297 | | Mike Roetnor | Michael Roetnor | DNA |
| 3.8.1958 | Giro delle Calabria | | | Carlo Mario Abate | | 4th |
| 3.8.1958 | Giro delle Calabria | | | Casimiro Toselli | | 3rd |
| 10.8.1958 | Kanonloppet [GT2.0] | 7 | | Carl Lohmander | | 13th |
| 10.8.1958 | Kanonloppet [GT2.0] | 11 | | Renvall / Rehnvall | | 9th |
| 16.8.1958 | SCCA National Milwaukee [FP+GP+HM] | 8 | | Jim Kaser | | 3rd |
| 16.8.1958 | SCCA National Milwaukee [FP+GP+HM] | 35 | | Clint Lindburg | | 4th |
| 16.8.1958 | Preliminary Montgomery [GT] | 43 | | John Willock | | 8th |
| 16.8.1958 | SCCA National Milwaukee [FP+GP+HM] | 80 | | Lee Hall | | 10th |
| 16.8.1958 | SCCA National Milwaukee [FP+GP+HM] | 111 | | Rudy Woller | | 7th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 37 | | Norman Webb | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 41 | | Allan Lance | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 43 | | John Willock | | 10th |
| 17.8.1958 | Zeltweg [GT1.3] | 73 | | Ernst Schmid | Ernst Schmid | DNA |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 82 | | Barry Budlong | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 83 | | Herbert Klay | | 3rd |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 122 | | Louis Comito | | 4th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 177 | | William Krause | | 13th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 211 | | Allen Markelson | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 237 | | Stuart Shepp | | 7th |
| 30.8.1958 | Preliminary Santa Barbara [FP] | 197 | | Mike Roetnor | | 2nd |
| 31.8.1958 | Preliminary Mansfield [GP+HP+IP+JP+KP] | 5 | | Jerry Morton | Jerry Morton | DNA |
| 31.8.1958 | SCCA Regional Mansfield [GP+HP+IP+JP+KP] | 5 | | Jerry Morton | Jerry Morton | DNA |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 6 | | Jim Silberman | | 1st |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 50 | | George Fogg | | 3rd |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 71 | | John Clapp | | 2nd |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 83 | | Herbert Klay | | DNF |
| 31.8.1958 | Santa Barbara [FP] | 87 | | Dean Patterson | | 9th |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 90 | | Bob Grossman | | 4th |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 96 | | Ed Mowle | | DNF |
| 31.8.1958 | Preliminary Mansfield [GP+HP+IP+JP+KP] | 100 | | Hugh Fallis | Hugh Fallis | DNA |
| 31.8.1958 | SCCA Regional Mansfield [GP+HP+IP+JP+KP] | 100 | | Hugh Fallis | Hugh Fallis | DNA |
| 31.8.1958 | Santa Barbara [FP] | 114 | | Tom Handley | | 8th |
| 31.8.1958 | Santa Barbara [FP] | 115 | | Frank Aldhous | | 1st |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 141 | | Allan Lance | | 6th |
| 31.8.1958 | Santa Barbara [FP] | 197 | | Mike Roetnor | | 3rd |
| 31.8.1958 | Santa Barbara [FP] | 241 | | Eugene Lee | | 5th |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 6 | | Jim Silberman | | 6th |