| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 25 | 500 TR | Pete Lovely | | 6th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 26 | | Howard Hively | | DNA |
| 11.1.1958 | GP Ardmore | 29 | 750 Monza | Ken Harris | | ?th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 73 | 500 Mondial | Austin Young | | DNA |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 74 | 500 TR Scaglietti Spyder | John Quackenbush | | 11th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 78 | 750 Monza Scaglietti Spyder | E. D. Martin | | DNA |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 92 | 375 Plus | George Reed | | 18th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 95 | 250 GT | David Cunningham | | DNA |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 96 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | | 17th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 115 | 625 TR Spyder Scaglietti | Jim Johnston | | 12th |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 159 | | Robert Williams | | DNA |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | | | Carroll Shelby | Temple Buell | DNS |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 25 | 500 TR | Pete Lovely | | 4th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 26 | | Howard Hively | | DNA |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 73 | 500 Mondial | Austin Young | | 11th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 74 | 500 TR Scaglietti Spyder | John Quackenbush | | 8th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 78 | 750 Monza Scaglietti Spyder | E. D. Martin | | DNA |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 92 | 375 Plus | George Reed | | 14th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 95 | 250 GT | David Cunningham | | DNA |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 96 | 250 GT LWB Scaglietti Berlinetta TdF | George Arents | | 13th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 115 | 625 TR Spyder Scaglietti | Jim Johnston | | 10th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 159 | | Robert Williams | | DNA |
| 26.1.1958 | 1000 km Buenos Aires | 2 | 250 TR Scaglietti Spyder 58 | Collins / Hill | Scuderia Ferrari | 1st |
| 26.1.1958 | 1000 km Buenos Aires | 4 | 250 TR Scaglietti Spyder 58 | von Trips / Gendebien / Musso | Scuderia Ferrari | 2nd |
| 26.1.1958 | 1000 km Buenos Aires | 6 | 250 TR Scaglietti Spyder | Musso / Gendebien | Scuderia Ferrari | DNF |
| 26.1.1958 | 1000 km Buenos Aires | 8 | 250 TR Scaglietti Spyder | von Neumann / Seidel | John von Neumann | DNF |
| 26.1.1958 | 1000 km Buenos Aires | 10 | 250 GT LWB Scaglietti Berlinetta TdF | Trintignant / Picard | | 8th |
| 26.1.1958 | 1000 km Buenos Aires | 22 | 625 TF Vignale Spyder | Piano / Bruno | priv. | DNF |
| 26.1.1958 | 1000 km Buenos Aires | 24 | 750 Monza | Lara Barberis / Martins | priv. | DNF |
| 26.1.1958 | 1000 km Buenos Aires | 26 | 250 TR Scaglietti Spyder 58 | Drogo / Gonzalez | Piero Drogo | 4th |
| 26.1.1958 | 1000 km Buenos Aires | 34 | 500 TR Scaglietti Spyder | Munaron / Mantovani | priv. | 6th |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 11 | 625 TRC | John von Neumann | John von Neumann | 2nd |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 69 | 375 Plus | Dan Gurney | Frank Arciero | 5th |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 99 | 500 Mondial | Bill Louden | Bruce Danielson | 7th |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 140 | 166 MM/53 | Jack Grimm | Jack Grimm | 8th |
| 8.2.1958 | Preliminary Pomona [Modified +1.5] | 211 | 500 TR | Richie Ginther | John von Neumann | 1st |
| 8.2.1958 | Teretonga Park | | | Ken Harris | | 4th |
| 9.2.1958 | Pomona [S+1.5] | 11 | 625 TRC | John von Neumann | John von Neumann | 3rd |
| 9.2.1958 | Pomona [S+1.5] | 99 | 500 Mondial | Bill Louden | Bruce Danielson | 4th |
| 9.2.1958 | Pomona [S+1.5] | 211 | 500 TR | Richie Ginther | John von Neumann | 1st |
| 9.2.1958 | Guadalajara | | | James Smith | | DNA |
| 9.2.1958 | Guadalajara | | 500 TR | Richie Ginther | | DNA |
| 1958 | Texas [Modified] | 91 | 750 Monza | Richard McGuire | | ?th |
| 1958 | Preliminary Plains Premiere [BP+CP+DP+EP] | | 250 GT | Russell Cowles | | 2nd |
| 1958 | Preliminary Plains Premiere [Novice] | | 250 GT | Russell Cowles | | 4th |
| 1958 | Texas [Modified] | | | | | raced |
| 1958 | Plains Premiere [Main] | | 166 MM/53 | Paul Hill | | ?th |
| 1958 | Preliminary Plains Premiere [BM+CM+DM+EM+FM+GM] | | 166 MM/53 | Paul Hill | | 2nd |
| 1958 | Modena | | 250 GT | Giovanardi | | ?th |