| 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 | Circuito di Sassari | | 500 TRC | Gaetano Starrabba | | DNF |
| 6.7.1958 | Circuito di Sassari | | 500 TR | Franco Cortese | | 4th |
| 13.7.1958 | MGCC Zandvoort | 1 | 250 GT | Michel Ringoir | | 2nd |
| 13.7.1958 | Vila Real | 10 | 250 TR Scaglietti Spyder 58 | Alfonso Gómez Mena | | 6th |
| 13.7.1958 | MGCC Zandvoort | 12 | 250 GT | "Remordu" | | 1st |
| 13.7.1958 | Vila Real | 12 | 250 TR Scaglietti Spyder 58 | Piero Drogo | Piero Drogo | DNF |
| 15.7.1958 | Vuelta di Aragna | | 250 TR Scaglietti Spyder | José Miguel Galia | Lagartixa Racing Team | 1st |
| 19.7.1958 | Berwick [Open] | 21 | 250 MM | William Infantino | | raced |
| 19.7.1958 | Berwick [Open] | 131 | 500 Mondial | Charlie Kolb | | raced |
| 20.7.1958 | 10 h Messina | | 500 TRC | Starrabba / Cortese | | raced |
| 27.7.1958 | Trophée d'Auvergne | 72 | 250 GT | Willy Mairesse | Ecurie Francorchamps | 3rd |
| 27.7.1958 | Trophée d'Auvergne | 74 | 250 GT | Jean Guichet | Jean Guichet | 32nd |
| 27.7.1958 | Trophée d'Auvergne | 76 | 250 GT | Olivier Gendebien | Ecurie Francorchamps | 4th |
| 27.7.1958 | Trophée d'Auvergne | 78 | 250 GT | François Picard | François Picard | DNF |
| 27.7.1958 | Trophée d'Auvergne | 80 | 250 GT | Hermano da Silva Ramos | Hernano Da Silva Ramos | 5th |
| 27.7.1958 | Trophée d'Auvergne | 82 | 250 GT | Noblet / Péron | "Pertin" | 8th |
| 27.7.1958 | Trophée d'Auvergne | 84 | 250 GT | Péron / Noblet | | DNA |
| 27.7.1958 | Trophée d'Auvergne | 86 | 250 GT | Jean Aumas | | 10th |
| 27.7.1958 | Trophée d'Auvergne | 88 | 250 GT LWB Scaglietti Berlinetta | Maurice Trintignant | Maurice Trintignant | 2nd |
| 27.7.1958 | Trophée d'Auvergne | 90 | 250 GT | Wolfgang Seidel | Wolfgang Seidel | DNF |
| 27.7.1958 | Trophée d'Auvergne | 128 | 250 GT | Michel Ringoir | Ecurie Francorchamps | DNS |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 11 | 335 Sport | John von Neumann | John Von Neumann | 2nd |
| 3.8.1958 | Akron | 15 | 250 TR Scaglietti Spyder 58 | Jim Johnston | | 2nd |
| 3.8.1958 | Midland | 21 | 250 TR Scaglietti Spyder | Dan Collins | | 1st |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 26 | 500 TR | Gordon Glyer | Gordon Glyer | ?th |
| 3.8.1958 | National Zandvoort | 48 | 250 Monza Pinin Farina Spyder | Hans Tak | | raced |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 55 | 500 TR | Sam Weiss | Sam Weiss | DNA |
| 3.8.1958 | SCCA Regional Shelton [S+1.5] | 121 | 500 TRC | Frank Becker | | 2nd |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 199 | 500 Mondial | T. Robert White | Dr. T. Robert White | DNA |
| 3.8.1958 | Preliminary Minden [Ladies+FIII+MG+Novice] | 211 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | John von Neumann | 1st |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 211 | 250 TR Scaglietti Spyder 58 | Richie Ginther | John von Neumann | 3rd |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 288 | 410 Sport Scaglietti Spyder | Pete Woods | John Edgar | 4th |
| 3.8.1958 | SCCA Regional Shelton [S+1.5] | | TR | Pete Lovely | | DNA |
| 3.8.1958 | Giro delle Calabria | | 250 GT | Armando Zampiero | | 2nd |
| 10.8.1958 | Kanonloppet [Sports] | 5 | | Carroll Shelby | | DNA |
| 10.8.1958 | Kanonloppet [Sports] | 6 | | Curt Lincoln | | DNA |
| 10.8.1958 | Kanonloppet [Sports] | 7 | 250 TR Scaglietti Spyder 58 | Lucien Bianchi | Ecurie Francorchamps | DNS |
| 10.8.1958 | Kanonloppet [Sports] | 8 | 500 TRC | Fred Geitel | Scuderia Askolin | 11th |
| 10.8.1958 | Kanonloppet [Sports] | 9 | 250 GT | Wolfgang Seidel | Wolfgang Seidel | DNF |
| 10.8.1958 | Kanonloppet [Sports] | 10 | 500 TR | Bjarne Rehn | Scuderia Askolin | DNF |
| 10.8.1958 | Kanonloppet [Sports] | 11 | 250 TR Scaglietti Spyder 58 | Curt Lincoln | Scuderia Askolin | 5th |
| 10.8.1958 | Kanonloppet [Sports] | 16 | 500 Mondial | John Kvarnström | | 7th |
| 10.8.1958 | Kanonloppet [Sports] | 17 | 750 Monza | Gunnar Carlsson | | 2nd |
| 10.8.1958 | Kanonloppet [Sports] | 19 | 750 Monza Scaglietti Spyder | Carl-Otto Bremer | Carl-Otto Bremer | 4th |
| 10.8.1958 | Kanonloppet [Sports] | 20 | 500 Mondial Pinin Farina Spyder | Lars Edin | | 9th |
| 10.8.1958 | Kanonloppet [Sports] | 21 | 750 Monza | Pentti Keinänen | | 10th |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 7 | 625 TR Spyder Scaglietti | Augie Pabst | Pabst Motors | 1st |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 10 | 290 MM | John Kilborn | | 2nd |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 15 | 250 TR Scaglietti Spyder 58 | Jim Johnston | | 5th |
| 16.8.1958 | Roskilde Ring [S+1.5] | 22 | 500 TRC | Fred Geitel | Scuderia Askolin | raced |
| 16.8.1958 | Roskilde Ring [S+1.5] | 24 | 750 Monza | Gunnar Carlsson | | 1st |
| 16.8.1958 | Roskilde Ring [S+1.5] | 26 | 750 Monza Scaglietti Spyder | Carl-Otto Bremer | Carl-Otto Bremer | 3rd |
| 16.8.1958 | Roskilde Ring [S+1.5] | 28 | 250 TR Scaglietti Spyder 58 | Pentti Keinänen | Scuderia Askolin | DNS |
| 16.8.1958 | Roskilde Ring [S+1.5] | 29 | 500 TR | Geitel | Scuderia Askolin | DNF |
| 16.8.1958 | Roskilde Ring [S+1.5] | 30 | 500 Mondial | John Kvarnström | O. Persson | raced |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 41 | 315 Sport | E. D. Martin | | DNF |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 42 | 500 TR Scaglietti Spyder | J. Robert Schroeder | | 13th |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 52 | | Robert Gary | | DNF |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 60 | 500 Mondial | Bud Anderson | | 9th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 96 | 250 GT LWB Berlinetta TdF | George Reed | | 2nd |
| 17.8.1958 | National Buenos Aires | 7 | 625 TF Vignale Spyder | Alvaro Piano | | DNF |
| 17.8.1958 | National Buenos Aires | 10 | 212 Export Motto Spyder | Nestor Salerno | | raced |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 25 | 500 TRC | Gaston Andrey | | DNF |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 45 | 500 TRC | Gilbert Geitner | | 4th |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 46 | 500 TR | Ed Hugus | Ed Hugus | 3rd |
| 17.8.1958 | Zeltweg [GT+1.3] | 93 | 250 GT | Ottavio Randaccio | Scuderia Ambrosiana | DNA |
| 17.8.1958 | Zeltweg [GT+1.3] | 94 | 250 GT | Wolfgang Seidel | Henrik v. Schulmann | 1st |
| 17.8.1958 | Zeltweg [GT+1.3] | 95 | 250 GT | Luigi Villotti | Luigi Villotti | 4th |
| 17.8.1958 | Zeltweg [Sports] | 120 | 250 TR Scaglietti Spyder 58 | Gotfrid Köchert | Gotfrid Köchert | T-car |
| 17.8.1958 | Zeltweg [Sports] | 120T | 290 MM Scaglietti Spyder | Gotfrid Köchert | Gotfrid Köchert | DNF |
| 17.8.1958 | Zeltweg [GT+1.3] | | 250 GT LWB Berlinetta Scaglietti TdF | Massimo Leto di Priolo | | 2nd |
| 24.8.1958 | Hourglass Field [S+1.5] | | 250 TR Scaglietti Spyder 58 | John von Neumann | | 1st |
| 24.8.1958 | Hourglass Field [S+1.5] | | 500 TRC | Jack Nethercutt | Jack Nethercutt | 6th |
| 24.8.1958 | Hourglass Field [Unlimited] | | 500 TRC | Jack Nethercutt | Jack Nethercutt | 2nd |
| 30.8.1958 | Preliminary Santa Barbara [Ladies] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 1st |
| 30.8.1958 | Preliminary Santa Barbara [BM+CM+DM] | 112 | 250 TR Scaglietti Spyder 58 | Richie Ginther | | 2nd |
| 31.8.1958 | Santa Barbara [BM+CM+DM] | 11 | 625 TRC | John von Neumann | John von Neumann | 3rd |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 24 | 500 TRC | Ray Jones | A. D. Logan | DNA |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 25 | 500 TRC | Gaston Andrey | | 7th |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 26 | | A. D. Logan | A. D. Logan | DNA |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 26 | | A. D. Logan | A. D. Logan | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 43 | 500 TR | Bob Walker | Bob Walker | DNA |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 43 | 500 TR | Bob Walker | Bob Walker | DNA |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 45 | 500 TRC | Gilbert Geitner | | 8th |
| 31.8.1958 | Santa Barbara [BM+CM+DM] | 53 | 121 LM Scaglietti Spyder | Ken Miles | | 4th |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 70 | Monza | Bob Schroeder | Bob Schroeder | DNA |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 70 | Monza | Bob Schroeder | Bob Schroeder | DNA |
| 31.8.1958 | Preliminary Thompson [BP+CP] | 96 | 250 GT LWB Berlinetta TdF | George Reed | | 3rd |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 102 | 500 TRC | Jack Nethercutt | Jack Nethercutt | 15th |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 103 | 750 Monza | Northrop Peck | C. Northrop Peck | 8th |
| 31.8.1958 | Santa Barbara [Ladies] | 112 | 250 TR Scaglietti Spyder 58 | Josie von Neumann | | 1st |
| 31.8.1958 | Santa Barbara [BM+CM+DM] | 112 | 250 TR Scaglietti Spyder 58 | Richie Ginther | | 2nd |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 135 | 500 TRC | Allen Markelson | | 9th |
| 31.8.1958 | Santa Barbara [BM+CM+DM] | 146 | 250 TR Scaglietti Spyder 58 | Dick Morgensen | | 7th |
| 31.8.1958 | Deer Park [CM+DM+EM] | | 500 TRC | Frank Becker | | 2nd |
| 31.8.1958 | Courtland Trophy | | 500 TR | William Kimberly | | 3rd |
| 31.8.1958 | Courtland [CM+DM+EM+FM+BP+CP+DP+EP] | | 750 Monza Scaglietti Spyder | E. D. Martin | | 2nd |
| 31.8.1958 | Courtland Trophy | | 250 MM | Chuck Saffell | | DNA |
| 31.8.1958 | Courtland Trophy | | 750 Monza Scaglietti Spyder | E. D. Martin | | DNF |