| 28.9.1958 | USAC Watkins Glen | 2 | 412 MI | Phil Hill | Ferrari Representatives California | DNF |
| 28.9.1958 | USAC Watkins Glen | 3 | 290 MM | Dan Gurney | NART | 2nd |
| 28.9.1958 | USAC Watkins Glen | 4 | 860 Monza Scaglietti Spyder | Bruce Kessler | NART | 3rd |
| 28.9.1958 | Hourglass Field [BM+CM+DM+EM] | 11 | 625 TRC | John von Neumann | John Von Neumann | DNF |
| 28.9.1958 | Lawrenceville | 15 | 250 TR Scaglietti Spyder 58 | Jim Johnston | | 3rd |
| 28.9.1958 | ICNSCC Ellensburg [Modified] | 31 | 500 TR | Frank Becker | | DNF |
| 28.9.1958 | USAC Watkins Glen | 35 | 500 TRC | Allen Markelson | | DNF |
| 28.9.1958 | Hourglass Field [Ladies+FIII] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 1st |
| 28.9.1958 | Hourglass Field [BM+CM+DM+EM] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 3rd |
| 28.9.1958 | Hourglass Field [BM+CM+DM+EM] | | 500 TRC | Jack Nethercutt | Jack Nethercutt | 6th |
| 5.10.1958 | Coupes du Salon | 1 | 250 GT | Lucien Bianchi | Ecurie Francorchamps | 1st |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 2 | 625 TRC | Josie von Neumann | John von Neumann | 5th |
| 5.10.1958 | Coupes du Salon | 3 | 250 GT | Claude Bourillot | Claude Bourillot | 3rd |
| 5.10.1958 | Eifelrennen Nürburgring | 4 | 250 GT | Wolfgang Seidel | Wolfgang Seidel | 1st |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 11 | 335 Sport | John von Neumann | John von Neumann | 1st |
| 5.10.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+GM] | 25 | 500 TRC | Gaston Andrey | | 4th |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 26 | 500 TR | Gordon Glyer | | 7th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 45 | 500 TRC | Gilbert Geitner | Gil Geitner | 2nd |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | 55 | 500 TR | Sam Weiss | | 4th |
| 5.10.1958 | Innsbruck [GT+1.6/S1.1] | 70 | 250 GT Europa | Henrik von Schulmann | Henrik v. Schulmann | DNA |
| 5.10.1958 | Innsbruck [GT+1.6/S1.1] | 73 | 250 GT LWB Berlinetta Scaglietti TdF | Carlo Leto di Priolo | Scuderia Ambrosiana | 2nd |
| 5.10.1958 | Innsbruck [GT+1.6/S1.1] | 76 | 250 GT | Ottavio Randaccio | Scuderia Ambrosiana | DNA |
| 5.10.1958 | Innsbruck [S+1.1] | 89 | | Franco Cortese | Franco Cortese | 7th |
| 5.10.1958 | Innsbruck [S+1.1] | 90 | 750 Monza | Peter Monteverdi | Peter Monteverdi | DNA |
| 5.10.1958 | Coupes du Salon | | 250 GT | Jean-Pierre Schild | | 2nd |
| 5.10.1958 | SCCA National Vaca Valley [BM+CM+DM+EM+FM] | | 412 MI | Phil Hill | | DNA |
| 5.10.1958 | Coupes du Salon | | 250 GT | André Guelfi | André Guelfi | DNF |
| 10.10.1958 | Pferdsfeld | | 250 GT | Wolfgang Seidel | | 1st |
| 11.10.1958 | Preliminary Venice [CM+DM+EM+FM+BP+CP+DP] | 64 | 250 TR Scaglietti Spyder 58 | E. D. Martin | | DNF |
| 12.10.1958 | USAC Riverside | 1 | | Jo Bonnier | Massaglia Hotel | DNA |
| 12.10.1958 | USAC Riverside | 2 | 412 MI | Phil Hill | Ferrari Representatives of California | DNF |
| 12.10.1958 | USAC Riverside | 11 | 335 Sport | John von Neumann | Ferrari Representatives of California | DNF |
| 12.10.1958 | USAC Riverside | 26 | 500 TR | Gordon Glyer | Gordon Glyer | 12th |
| 12.10.1958 | SCCA Regional Wilmot [BM+CM+DM+EM+FM+GM] | 31 | 500 TR | James Place | | 3rd |
| 12.10.1958 | SCCA Regional Wilmot [BM+CM+DM+EM+FM+GM] | 42 | 500 TR Scaglietti Spyder | J. Robert Schroeder | | 8th |
| 12.10.1958 | 6 h Venice | 64 | 250 TR Scaglietti Spyder 58 | E. D. Martin | | raced |
| 12.10.1958 | USAC Riverside | 69 | 375 Plus | Dan Gurney | Frank Arciero | 2nd |
| 12.10.1958 | USAC Riverside | 77 | | Rodger Ward | Italia Motors | DNQ |
| 12.10.1958 | USAC Riverside | 88 | 410 Sport Scaglietti Spyder | Gregory / Bonnier | John Edgar | 11th |
| 12.10.1958 | USAC Riverside | 121 | 500 TRC | Frank Becker | Team Empire | 17th |
| 12.10.1958 | USAC Riverside | 135 | 500 TRC | Allen Markelson | Al Markelson | 15th |
| 12.10.1958 | USAC Riverside | 155 | 500 TR | Sam Weiss | Sam Weiss | DNF |
| 12.10.1958 | USAC Riverside | 211 | 250 TR Scaglietti Spyder 58 | Richie Ginther | Ferrari Representatives of California | 5th |
| 18.10.1958 | Preliminary Lime Rock [GT] | 128 | 250 GT LWB Scaglietti Berlinetta TdF | Bob Grossman | | 1st |
| 19.10.1958 | Buenos Aires | 9 | 625 TF Vignale Spyder | Alvaro Piano | | 4th |
| 19.10.1958 | SCCA Regional Lime Rock [Main] | 45 | 500 TRC | Gilbert Geitner | | 2nd |
| 25.10.1958 | Preliminary Dothan [Modified+AP+BP+CP+DP+EP] | 64 | 250 TR Scaglietti Spyder 58 | E. D. Martin | E. D. Martin | 1st |
| 26.10.1958 | Minden [BM+CM+DM+EM] | 26 | 500 TR | Gordon Glyer | | 6th |
| 26.10.1958 | Vineland [Main] | 31 | 750 Monza | Charlie Kolb | | 4th |
| 26.10.1958 | SCCA Regional Dothan [Main] | 64 | 250 TR Scaglietti Spyder 58 | E. D. Martin | E. D. Martin | 1st |
| 26.10.1958 | Minden [BM+CM+DM+EM] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 9th |
| 26.10.1958 | SCCA Regional Fort Sumner | | 250 TR | Charles Hughes | | 1st |
| 26.10.1958 | Modena [GT] | | 250 GT | Guiliano Giovanardi | | 1st |
| 26.10.1958 | SCCA Regional Dothan [Main] | | 500 TR | | | raced |
| 1.11.1958 | Preliminary Palm Springs [CM+DM+EM+FM+GM+HM] | 78 | | Jim Connor | S. Sugarmann | 3rd |
| 1.11.1958 | Preliminary Palm Springs [CM+DM+EM+FM+GM+HM] | 146 | 250 TR Scaglietti Spyder 58 | Dick Morgensen | R. C. Morgensen | 2nd |
| 2.11.1958 | Palm Springs [Exhibition] | 73 | 500 Mondial | Bill Love | Bill Love | 4th |
| 2.11.1958 | SCCA National Palm Springs [CM+DM+EM+FM+GM+HM] | 78 | | Jim Connor | S. Sugarmann | 3rd |
| 2.11.1958 | Oklahoma Petite GP | 111 | 500 TRC | Ray Jones | | 4th |
| 2.11.1958 | SCCA Regional Oklahoma [Modified +2.0] | 111 | 500 TRC | Ray Jones | | 2nd |
| 2.11.1958 | SCCA National Palm Springs [CM+DM+EM+FM+GM+HM] | 146 | 250 TR Scaglietti Spyder 58 | Dick Morgensen | R. C. Morgensen | 2nd |
| 2.11.1958 | Palm Springs [Exhibition] | | 375 Plus | | Frank Arciero | DNA |
| 4.11.1958 | Coppa Sant Ambroeus [GT2.6/GT+2.6] | 191 | 250 GT LWB Zagato TdF | Vladimiro Galluzzi | Vladimiro Galluzzi | 3rd |
| 4.11.1958 | Coppa Sant Ambroeus [GT2.6/GT+2.6] | 192 | 250 GT | Edoardo Lualdi | | 1st |
| 4.11.1958 | Coppa Sant Ambroeus [GT2.6/GT+2.6] | 193 | 250 GT | | | raced |
| 4.11.1958 | Coppa Sant Ambroeus [GT2.6/GT+2.6] | 195 | 250 GT | Luigi Taramazzo | | 2nd |
| 8.11.1958 | Preliminary Laguna Seca [BM+CM+DM+EM] | 11 | 250 TR Scaglietti Spyder 58 | John von Neumann | | raced |
| 8.11.1958 | Preliminary Laguna Seca [BM+CM+DM+EM] | 93 | 860 Monza | Lovely | Jerry Barker | raced |
| 8.11.1958 | Preliminary Laguna Seca [BM+CM+DM+EM] | 211 | 250 TR Scaglietti Spyder 58 | Richie Ginther | John von Neumann | 2nd |
| 8.11.1958 | Preliminary Laguna Seca [Ladies] | 211 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | John von Neumann | 1st |
| 9.11.1958 | 300 km Buenos Aires | 9 | 625 TF Vignale Spyder | Alvaro Piano | | 4th |
| 9.11.1958 | SCCA Regional Laguna Seca [BM+CM+DM] | 11 | 250 TR Scaglietti Spyder 58 | John von Neumann | | DNS |
| 9.11.1958 | SCCA Regional Laguna Seca [EM+FM] | 102 | 500 TRC | Jack Nethercutt | Jack Nethercutt | 10th |
| 9.11.1958 | SCCA Regional Laguna Seca [EM+FM] | 121 | 500 TRC | Frank Becker | Frank Becker | DNF |
| 9.11.1958 | SCCA Regional Laguna Seca [BM+CM+DM] | 211 | 250 TR Scaglietti Spyder 58 | Richie Ginther | John von Neumann | 3rd |
| 9.11.1958 | SCCA Regional Laguna Seca [Ladies] | 211 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | John von Neumann | 1st |
| 9.11.1958 | SCCA Regional Laguna Seca [EM+FM] | 226 | 500 TR | Gordon Glyer | Gordie Glyer | 5th |
| 9.11.1958 | SCCA Regional Laguna Seca [BM+CM+DM] | 288 | | Pete Woods | John Edgar | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [BM+CM+DM] | | 500 Mondial | Bill Love | Bill Love | 9th |
| 15.11.1958 | 9 h Johannesburg | 1 | 225 S | Jennings / Philp | Scuderia Lupini | 13th |
| 16.11.1958 | Dunnellon | 8 | 250 TR Scaglietti Spyder 58 | E. D. Martin | | raced |
| 16.11.1958 | Dunnellon | 29 | 250 TR Scaglietti Spyder 58 | Lloyd Casner | | raced |
| 22.11.1958 | GP Venezuela | 814 | 250 GT | Carlos Ziop | Carlos Ziop | NC |
| 22.11.1958 | GP Venezuela | 815 | 250 GT | Vladimiro Toselli | Escuderia Madunina | 4th |
| 22.11.1958 | GP Venezuela | 816 | 250 GT | Jean Behra | Escuderia Madunina | 1st |
| 22.11.1958 | GP Venezuela | 819 | 250 GT | Ugo Tosa | U. Tosa | 6th |
| 22.11.1958 | GP Venezuela | 822 | 250 GT | Gino Munaron | Escuderia Madunina | 3rd |
| 22.11.1958 | GP Venezuela | 823 | 250 GT | Julio Pola | Escuderia Madunina | 2nd |
| 22.11.1958 | GP Venezuela | 826 | 250 GT | Ettore Chimeri | Escuderia Madunina | 7th |
| 22.11.1958 | GP Venezuela | | | Carles | | DNF |
| 23.11.1958 | Pomona [BM+CM+DM+EM] | 28 | 500 Mondial | Bill Love | Lew Yates | DNF |
| 23.11.1958 | Pomona [BM+CM+DM+EM] | 65 | 500 TRC | Richie Ginther | Jack Nethercutt | 2nd |
| 23.11.1958 | Pomona [EM+FM+GM+HM] | 65 | 500 TRC | Jack Nethercutt | Jack Nethercutt | 4th |
| 23.11.1958 | Pomona [BM+CM+DM+EM] | | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | DNF |
| 30.11.1958 | Circuito Trinidad | 110 | 250 TR Scaglietti Spyder | José Miguel Galia | | 1st |
| 30.11.1958 | Hammond [Main] | 111 | 500 TRC | Ray Jones | A. D. Logan | 2nd |
| 30.11.1958 | Phoenix [Production] | | 250 GT | Russell Cowles | | 7th |
| 30.11.1958 | Phoenix [Main] | | 250 GT | Russell Cowles | | 8th |
| 30.11.1958 | Phoenix [Main] | | 250 TR Scaglietti Spyder 58 | Dick Morgensen | | 3rd |
| 30.11.1958 | Hammond [Main] | | 500 TR | William Kimberly | | raced |