| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 9 | Giulietta Spider Veloce | Bob Grossman | | 2nd |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 10 | Giulietta Sprint Veloce | George Fogg | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 37 | Giulietta Veloce | Norman Webb | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 40 | Giulietta Spider Veloce | Ray Bloomer | | 5th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 41 | Giulietta Veloce | Allan Lance | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 43 | Giulietta Veloce | John Willock | | 10th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 82 | Giulietta Veloce | Barry Budlong | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 83 | Giulietta Veloce | Herbert Klay | | 3rd |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 122 | Giulietta Veloce | Louis Comito | | 4th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 170 | Giulietta Spider Veloce | John Guthrie | | 1st |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 177 | Giulietta Veloce | William Krause | | 13th |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 211 | Giulietta Veloce | Allen Markelson | | DNF |
| 17.8.1958 | SCCA National Montgomery [GP+HP+HM] | 237 | Giulietta Veloce | Stuart Shepp | | 7th |
| 23.8.1958 | LASC Green Acres [S1.6] | 15 | | Santo Irlandi | Lt. Santo A. Irlandi | DNA |
| 23.8.1958 | LASC Green Acres [S1.6] | 19 | Giulietta Sprint | L. D. Morrisett | Lt. L. D. Morrisett, Jr. | DNA |
| 23.8.1958 | LASC Green Acres [Touring] | 19 | Giulietta Sprint | L. D. Morrisett | Lt. L. D. Morrisett, Jr. | DNA |
| 23.8.1958 | LASC Green Acres [S1.6] | 33 | Giulietta | William Bradley | William E. Bradley | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 33 | Giulietta | William Bradley | William E. Bradley | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 35 | Giulietta Spider | Nick Hartman | Nick Hartman | DNA |
| 23.8.1958 | LASC Green Acres [S1.6] | 35 | Giulietta Spider | Nick Hartman | Nick Hartman | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 36 | Giulietta Spider | Joe Diamond | Joe Diamond | DNA |
| 23.8.1958 | LASC Green Acres [S1.6] | 36 | Giulietta Spider | Joe Diamond | Joe Diamond | DNA |
| 30.8.1958 | Preliminary Santa Barbara [FP] | 197 | Giulietta Veloce | Mike Roetnor | | 2nd |
| 31.8.1958 | Preliminary Mansfield [GP+HP+IP+JP+KP] | 5 | Giulietta Veloce | Jerry Morton | Jerry Morton | DNA |
| 31.8.1958 | SCCA Regional Mansfield [GP+HP+IP+JP+KP] | 5 | Giulietta Veloce | Jerry Morton | Jerry Morton | DNA |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 6 | Giulietta Veloce | Jim Silberman | | 1st |
| 31.8.1958 | Santa Barbara [GP+HP] | 14 | Giulietta Spider | Robert Patton | | 3rd |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 50 | Giulietta Veloce | George Fogg | | 3rd |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 71 | Giulietta Veloce | John Clapp | | 2nd |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 83 | Giulietta Veloce | Herbert Klay | | DNF |
| 31.8.1958 | Santa Barbara [FP] | 87 | Giulietta Veloce | Dean Patterson | | 9th |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 90 | Giulietta Veloce | Bob Grossman | | 4th |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 96 | Giulietta Veloce | Ed Mowle | | DNF |
| 31.8.1958 | Preliminary Mansfield [GP+HP+IP+JP+KP] | 100 | Giulietta Veloce | Hugh Fallis | Hugh Fallis | DNA |
| 31.8.1958 | SCCA Regional Mansfield [GP+HP+IP+JP+KP] | 100 | Giulietta Veloce | Hugh Fallis | Hugh Fallis | DNA |
| 31.8.1958 | Santa Barbara [FP] | 111 | Giulietta Spider Veloce | Gerald Lehrer | | 10th |
| 31.8.1958 | Santa Barbara [FP] | 114 | Giulietta Veloce | Tom Handley | | 8th |
| 31.8.1958 | Santa Barbara [FP] | 115 | Giulietta Veloce | Frank Aldhous | | 1st |
| 31.8.1958 | Preliminary Thompson [GP+HP+HM] | 141 | Giulietta Veloce | Allan Lance | | 6th |
| 31.8.1958 | SCCA Regional Mansfield [GP+HP+IP+JP+KP] | 171 | Giulietta Spider Veloce | Bill Hughes | Maj. William T. Hughes | DNA |
| 31.8.1958 | Preliminary Mansfield [GP+HP+IP+JP+KP] | 171 | Giulietta Spider Veloce | Bill Hughes | Maj. William T. Hughes | DNA |
| 31.8.1958 | Santa Barbara [FP] | 197 | Giulietta Veloce | Mike Roetnor | | 3rd |
| 31.8.1958 | Santa Barbara [FP] | 241 | Giulietta Veloce | Eugene Lee | | 5th |
| 31.8.1958 | Santa Barbara [GP+HP] | 333 | Coupe | Chuck Nelson | | 10th |
| 31.8.1958 | Courtland Trophy | | Super | Dan Clippenger | | DNA |
| 31.8.1958 | Courtland [Ladies+Sedan 1.6] | | Super Sprint Veloce | Mike Rahal | | 3rd |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 6 | Giulietta Veloce | Jim Silberman | | 6th |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 50 | Giulietta Veloce | George Fogg | | 8th |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 71 | Giulietta Veloce | John Clapp | | 7th |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 83 | Giulietta Veloce | Herbert Klay | | 9th |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 90 | Giulietta Veloce | Bob Grossman | | DNF |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 96 | Giulietta Veloce | Ed Mowle | | DNF |
| 1.9.1958 | SCCA National Thompson [GM+HM+GP+HP] | 141 | Giulietta Veloce | Allan Lance | | 10th |
| 1.9.1958 | St. Eugene [Formula Libre] | | Giulietta | Alvin Morrison | | 3rd |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 2 | Giulietta Spider Veloce | Ted Baumgartner | | 4th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 3 | Giulietta | Ready Davis | | DNS |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 4 | Giulietta | Santo Irlandi | | 19th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 6 | Giulietta Veloce | David Schiff | | DNS |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 7 | Giulietta Veloce | Harold Kihn | | 28th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 8 | Giulietta | Jim Kaser | | DNF |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 15 | Giulietta | Bob Lyon | | 12th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 17 | Giulietta Veloce | George Ranney | | 7th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 21 | Giulietta | Ron Hunter | | 34th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 37 | Giulietta Spider Veloce | Richard Gaard | | 8th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 74 | Giulietta Veloce | Paul Leland | | 6th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 81 | Giulietta Veloce | Lee Hall | | 11th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 84 | Giulietta Veloce | George Cheyne | | 5th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 91 | Giulietta | Robert McNeal | | 25th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 98 | Giulietta | Andy Rosenberger | | 20th |
| 7.9.1958 | GP Leopoldville | 11 | Giulietta | Eddy Schmidt | | 6th |
| 7.9.1958 | 500 mile Road America | 44 | Giulietta Veloce | Furey / Lapine | | DNS |
| 7.9.1958 | USAC Lime Rock | 50 | 6C 3000 CM | Rodger Ward | | 10th |
| 7.9.1958 | Coppa Inter-Europa [GT1.3] | | Giulietta Veloce | Ettore Marconi | | 3rd |
| 7.9.1958 | Coppa Inter-Europa [GT1.3] | | Giulietta Veloce | Aristide Molteni | | 2nd |
| 7.9.1958 | Coppa Inter-Europa [GT1.3] | | Giulietta Sprint Veloce Zagato | Vladimiro Toselli | | 1st |
| 7.9.1958 | Coppa Inter-Europa [GT1.3] | | Giulietta Veloce | Piera Bertoletti | | 6th |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 7 | Giulietta | Ed Mowle | | 4th |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 27 | Giulietta | W. Riley | | 10th |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 41 | Giulietta Veloce | Allan Lance | | 1st |
| 13.9.1958 | Preliminary Bridgehampton [GT] | 44 | Giulietta Veloce | John Willock | | 5th |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 44 | Giulietta Veloce | John Willock | | 8th |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 55 | Giulietta Veloce | Bob Rubin | | 6th |
| 13.9.1958 | Preliminary Bridgehampton [GT] | 61 | Giulietta Veloce | Joe Cologero | | 4th |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 83 | Giulietta Veloce | Herbert Klay | | 3rd |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 119 | Giulietta Veloce | David Knott | | 7th |
| 13.9.1958 | Preliminary Bridgehampton [GT] | 119 | Giulietta Veloce | David Knott | | 2nd |
| 13.9.1958 | Preliminary Bridgehampton [GP+HP+HM] | 122 | Giulietta Veloce | Louis Comito | | 2nd |
| 13.9.1958 | Harewood Acres [PS1.5] | | Giulietta | Ernst Scheeder | | 2nd |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 1 | Giulietta Spider | Robert R. Smith | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 3 | SS | Ready Davis | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 7 | Giulietta Spider | Chuck Stoddard | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [Handicap] | 7 | Giulietta | Ed Mowle | | 5th |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 21 | Giulietta | Ron Hunter | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 33 | Giulietta Spider | H. M. Tardif | | DNA |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 41 | Giulietta Veloce | Allan Lance | | 6th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 44 | Giulietta Veloce | John Willock | | DNF |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 61 | Giulietta Veloce | Joe Cologero | | 19th |
| 14.9.1958 | Preliminary Bridgehampton [Handicap] | 61 | Giulietta Veloce | Joe Cologero | | 8th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 83 | Giulietta Veloce | Herbert Klay | | DNF |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 122 | Giulietta Veloce | Louis Comito | | 8th |