| 8.6.1958 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+GM] | 7 | 500 TR Scaglietti Spyder | John Quackenbush | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BM+CM+DM+EM+FM+GM] | 7 | 500 TR Scaglietti Spyder | John Quackenbush | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BM+CM+DM+EM+FM+GM] | 15 | 250 TR Scaglietti Spyder 58 | Jim Johnston | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+GM] | 15 | 250 TR Scaglietti Spyder 58 | Jim Johnston | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BM+CM+EM+FM] | 25 | 335 Sport | Gaston Andrey | | 2nd |
| 8.6.1958 | SCCA Regional Thompson [BM+CM+EM+FM] | 41 | 315 Sport | E. D. Martin | | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [BM+CM+DM+EM+FM+GM] | 53 | | Robert Gary | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+GM] | 53 | | Robert Gary | | ?th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 98 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | | 1st |
| 8.6.1958 | SCCA Regional Gainesville | | 315 Sport | E. D. Martin | | 1st |
| 14.6.1958 | Preliminary Lime Rock [GT] | 70 | 250 GT | Tom Fleming | | 6th |
| 14.6.1958 | Preliminary Lime Rock [GT] | 96 | 250 GT LWB Berlinetta TdF | George Reed | | 2nd |
| 14.6.1958 | Preliminary Lime Rock [GT] | 98 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | | 1st |
| 15.6.1958 | Vuelta Aragua-Maracay | 6 | 250 GT LWB | Ettore Chimeri | | 1st |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 11 | 625 TRC | Richie Ginther | John von Neumann | 1st |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 25 | 500 TRC | Gaston Andrey | | 7th |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 41 | 315 Sport | E. D. Martin | | 6th |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 46 | 500 TR | Chester Flynn | | 9th |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 55 | 500 TR | Sam Weiss | | DNF |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 60 | 500 Mondial | T. Robert White | | DNF |
| 15.6.1958 | SCCA National Lime Rock [BP+CP] | 70 | 250 GT TdF | Tom Fleming | | 8th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 71 | 250 GT LWB Berlinetta Scaglietti TdF | Richie Ginther | | 1st |
| 15.6.1958 | Preliminary Laguna Seca [Production III] | 71 | 250 GT LWB Berlinetta Scaglietti TdF | Richie Ginther | | 1st |
| 15.6.1958 | SCCA National Lime Rock [BP+CP] | 96 | 250 GT LWB Berlinetta TdF | George Reed | | 5th |
| 15.6.1958 | SCCA National Lime Rock [BP+CP] | 98 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | | 2nd |
| 15.6.1958 | Prix de Paris [S2.0] | | 500 TRC | Fernand Tavano | | 2nd |
| 15.6.1958 | Francorchamps Handicap | | 250 GT | Wolfgang Seidel | | 1st |
| 15.6.1958 | Prix de Paris [GT3.5+S1.0] | | 250 GT | Jean-Claude Vidilles | | 1st |
| 22.6.1958 | 24 h Le Mans | 1 | 250 TR | | Claude Bourillot | DNA |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 4 | | John Middleton | John Middleton | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 6 | 250 TR | Ed Lunken | E. P. Lunken | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 7 | 625 TR Spyder Scaglietti | Augie Pabst | Augie Pabst | 7th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 10 | 750 Monza | John Kilborn | John Kilborn | DNA |
| 22.6.1958 | 24 h Le Mans | 12 | 250 TR Scaglietti Spyder 58 | Hawthorn / Collins | Scuderia Ferrari | DNF |
| 22.6.1958 | Interlagos | 12 | 225 S Vignale Spyder | Álvaro Varanda | | 2nd |
| 22.6.1958 | 24 h Le Mans | 14 | 250 TR | | Jacques Swaters | DNA |
| 22.6.1958 | 24 h Le Mans | 14 | 250 TR Scaglietti Spyder | Gendebien / Hill | Scuderia Ferrari | 1st |
| 22.6.1958 | 24 h Le Mans | 15 | 250 GT | Gendebien / von Trips | Scuderia Ferrari | DNA |
| 22.6.1958 | 24 h Le Mans | 15 | 250 TR | | Jo Bonnier | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 15 | 250 TR Scaglietti Spyder 58 | Jim Johnston | Jas. R. Johnson | 11th |
| 22.6.1958 | 24 h Le Mans | 16 | 250 TR | | Francois Picard | DNA |
| 22.6.1958 | 24 h Le Mans | 16 | 250 TR Scaglietti Spyder | von Trips / Seidel | Scuderia Ferrari | DNF |
| 22.6.1958 | 24 h Le Mans | 17 | 250 TR Scaglietti Spyder 58 | Gómez Mena / Drogo | Fernand Tavano | DNF |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 17 | 500 TR Scaglietti Spyder | John Quackenbush | J. V. Quackenbush | 7th |
| 22.6.1958 | 24 h Le Mans | 18 | 250 TR Scaglietti Spyder 58 | Gurney / Kessler | North American Racing Team | DNF |
| 22.6.1958 | 24 h Le Mans | 19 | 250 TR Scaglietti Spyder 58 | Martin / Tavano | North American Racing Team | DNF |
| 22.6.1958 | 24 h Le Mans | 20 | 250 TR Scaglietti Spyder 58 | Picard / Juhan | Equipe Los Amigos | DNF |
| 22.6.1958 | 24 h Le Mans | 21 | 250 TR Scaglietti Spyder 58 | de Changy / "Beurlys" | Equipe Nationale Belge | 6th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 21 | 250 TR Scaglietti Spyder | Dan Collins | C. J. Hughes | 3rd |
| 22.6.1958 | 24 h Le Mans | 22 | 250 TR Scaglietti Spyder 58 | Hugus / Erickson | Ed Hugus | 7th |
| 22.6.1958 | 24 h Le Mans | 25 | 500 TR | Rodriguez / Behra | North American Racing Team | DNF |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 34 | 500 TR | Bob Walker | Bob Walker | 14th |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 42 | 500 TR Scaglietti Spyder | J. Robert Schroeder | | 21st |
| 22.6.1958 | Interlagos | 46 | 250 TR Scaglietti Spyder | Celso Lara Barberis | | 1st |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 53 | 500 Mondial | Robert Gary | Robert J. Gary | 13th |
| 22.6.1958 | 24 h Le Mans | 58 | 250 TR Scaglietti Spyder 58 | Bianchi / Mairesse | Ecurie Francorchamps | DNF |
| 22.6.1958 | Interlagos | 82 | 250 TR Scaglietti Spyder | Landi | | 7th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 95 | 250 GT LWB Berlinetta TdF | George Reed | George Reed | 1st |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 95 | 375 Plus | George Reed | George Reed | DNA |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 96 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | George Arents, Jr. | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 96 | 375 | George Arents | Geo. Arents, Jr. | DNA |
| 22.6.1958 | SCCA National Road America [EM+FM+GM] | 99 | 500 Mondial | T. Robert White | T. Robert White | DNA |
| 22.6.1958 | Circuito di Caserta [S2.0] | | 500 TRC | Gaetano Starrabba | | 4th |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 135 | 750 Monza | Peggy McClure | Edward H. Gelder | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 41 | 315 Sport | E. D. Martin | | 2nd |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 41 | 315 Sport | E. D. Martin | | DNE |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 57 | 500 Mondial | Jack Brewer | | 8th |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 135 | 750 Monza | Ed Gelder | Edward H. Gelder | 10th |
| 28.6.1958 | Preliminary Riverside [Modified +1.5] | 11 | 250 TR Scaglietti Spyder 58 | John von Neumann | | 3rd |
| 28.6.1958 | Preliminary Riverside [Ladies] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 1st |
| 28.6.1958 | Preliminary Riverside [Ladies] | 171 | 250 GT LWB Berlinetta Scaglietti TdF | Mary McGee | | 2nd |
| 28.6.1958 | Preliminary Riverside [BP+CP+DP+EP] | 171 | 250 GT LWB Berlinetta Scaglietti TdF | Richie Ginther | | 1st |
| 29.6.1958 | Riverside [BM+CM+DM+EM] | 11 | 250 TR Scaglietti Spyder 58 | John von Neumann | | 3rd |
| 29.6.1958 | Riverside [Ladies] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 1st |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 171 | 250 GT LWB Berlinetta Scaglietti TdF | Richie Ginther | | 1st |
| 29.6.1958 | Riverside [BM+CM+DM+EM] | 211 | 860 Monza | Richie Ginther | John von Neumann | 2nd |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 15 | 250 TR Scaglietti Spyder 58 | Sesslar / Johnston | | 11th |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 25 | 500 TRC | Gaston Andrey | | 4th |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 53 | 500 Mondial | Robert Gary | | DNF |
| 5.7.1958 | 12 h Reims | 64 | 250 GT | Gendebien / Frère | Ecurie Francorchamps | 1st |
| 5.7.1958 | 12 h Reims | 66 | 250 GT | da Silva Ramos / Hill | Hernano Da Silva Ramos | 10th |
| 5.7.1958 | 12 h Reims | 68 | 250 GT | Seidel / von Trips | Wolfgang Seidel | 4th |
| 5.7.1958 | 12 h Reims | 70 | 250 GT | Nottorp / Andersson | Sture Nottorp | DNF |
| 5.7.1958 | 12 h Reims | 72 | 250 GT | Aumas / Wirtz | Garage Montchoisy | DNF |
| 5.7.1958 | 12 h Reims | 74 | 250 GT | Péron / Noblet | "Pertin" | 3rd |
| 5.7.1958 | 12 h Reims | 76 | 250 GT | Guichet / Fraissinet | Jean Guichet | 7th |
| 5.7.1958 | 12 h Reims | 78 | 250 GT | Picard / Burggraff | François Picard | 5th |
| 5.7.1958 | 12 h Reims | 80 | 250 GT | Guelfi / Gurney | André Guelfi | DNF |
| 5.7.1958 | 12 h Reims | 84 | 250 GT | Mairesse / "Beurlys" | Ecurie Francorchamps | 2nd |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 98 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | | 2nd |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 146 | 500 TR | Frank Baptista | | 8th |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 11 | 250 TR Scaglietti Spyder 58 | John von Neumann | John Von Neumann | 1st |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 55 | 500 TR | Sam Weiss | Sam Weiss | 3rd |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 211 | | Richie Ginther | John Von Neumann | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 217 | 250 GT | Jim Connor | George Reis, Jr. | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 217 | 250 GT | Jim Connor | George Reis, Jr. | DNA |
| 6.7.1958 | Circuito di Sassari | | 500 TR | Franco Cortese | | 4th |
| 6.7.1958 | Baden Rock | | 500 TR | Alfonso Catella | | 1st |
| 6.7.1958 | Hammond [Main] | | TR | Bob Walker | | 4th |
| 6.7.1958 | Hammond [BM+CM+DM+EM] | | TR | Bob Walker | | 3rd |