| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 5 | #2412 | Jim Kimberly | | DNF |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 12 | #2423 | Joe Sheppard | | DNA |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 5 | #2412 | Jim Kimberly | | DNF |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 12 | #2423 | Joe Sheppard | | DNA |
| 26.1.1958 | 1000 km Buenos Aires | 30 | #2409 | Scarlatti / Negri Bevilacqua | | DNF |
| 26.1.1958 | 1000 km Buenos Aires | 32 | | Bonnier / Gregory | | DNF |
| 26.1.1958 | 1000 km Buenos Aires | 36 | | Gerini / Musso | | DNF |
| 9.2.1958 | Guadalajara | | | Carroll Shelby | | DNA |
| 16.2.1958 | Preliminary New Smyrna Beach [Modified] | 2 | #2423 | Joe Sheppard | Gay Jackson | 1st |
| 16.2.1958 | SCCA Regional New Smyrna Beach [Modified+BP+CP+DP+EP] | 2 | #2423 | Joe Sheppard | Gay Jackson | 1st |
| 2.3.1958 | SCCA Regional Phoenix [Main] | 1 | | Jack Hinkle | | 6th |
| 2.3.1958 | SCCA Regional Phoenix [S+1.5] | 1 | | Jack Hinkle | | 4th |
| 2.3.1958 | SCCA Regional Phoenix [S+1.5] | 106 | | Chuck Howard | | 6th |
| 2.3.1958 | SCCA Regional Phoenix [Main] | 106 | | Chuck Howard | | 7th |
| 9.3.1958 | SCCA Regional Boca Raton [CM+DM+EM+FM+GM+BP+CP+DP] | 2 | #2423 | Joe Sheppard | Gay Jackson | DNS |
| 9.3.1958 | Preliminary Boca Raton [CM+DM+EM+FM+GM] | 2 | #2423 | Joe Sheppard | Gay Jackson | DNF |
| 9.3.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM] | 99 | | Robert Ferguson | | 11th |
| 22.3.1958 | 12 h Sebring | 32 | #2412 | Kimberly / Lovely | Jim Kimberly | DNF |
| 23.3.1958 | SCCA Regional Stockton [S+1.5] | | | Chuck Howard | | DNA |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 111 | | Chuck Howard | | 8th |
| 13.4.1958 | Coppa Shell Monza | | | Negri | | 7th |
| 20.4.1958 | SCCA Regional Galveston [Modified] | 1 | | Jack Hinkle | | 4th |
| 20.4.1958 | Preliminary Galveston [CM+DM+EM] | 1 | | Jack Hinkle | | 5th |
| 20.4.1958 | SCCA Regional Galveston [Modified] | | | Norman Scott | | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 8 | #2427 | John Fitch | | 2nd |
| 27.4.1958 | Dunnellon [Main] | | | George Koehne | | DNF |
| 11.5.1958 | Targa Florio | 82 | | Perrella / Giovanardi | | DNS |
| 11.5.1958 | Targa Florio | 84 | | Boffa / Govoni | Maserati | DNF |
| 11.5.1958 | Targa Florio | 94 | | Lopez / Bornigia | | DNS |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 138 | | Chuck Howard | Charles S. Howard | 3rd |
| 11.5.1958 | Targa Florio | | | Luigi Bellucci | | DNA |
| 11.5.1958 | Targa Florio | | | Jo Bonnier | | DNA |
| 15.5.1958 | Aspern [S+1.5] | 7 | | Antonio Negri | Antonio Negri | raced |
| 15.5.1958 | Aspern [S+1.5] | 10 | | Odoardo Govoni | Odoardo Govoni | raced |
| 18.5.1958 | GP Spa | 4 | | Antonio Negri | | ?th |
| 25.5.1958 | GP des Frontières | 4 | | Antonio Negri | | 4th |
| 31.5.1958 | Preliminary La Junta [BM+CM+DM+EM+FM+GM] | 8 | | Jack Hinkle | | 2nd |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | 8 | | Jack Hinkle | | 2nd |
| 1.6.1958 | 1000 km Nürburgring | 18 | | Ulf Norinder | Norinder | DNS |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 8 | #2427 | John Fitch | | 4th |
| 15.6.1958 | SCCA Regional Laguna Seca [CM+DM+EM] | 138 | | Chuck Howard | | 4th |
| 15.6.1958 | Opatija [S2.0] | | | Odoardo Govoni | | 2nd |
| 22.6.1958 | 24 h Le Mans | 23 | #2428 | Martin / Dagorne | Jean Thépenier | DNF |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 8 | #2427 | John Fitch | | 3rd |
| 6.7.1958 | Circuito di Sassari | | | Antonio Negri | | 3rd |
| 20.7.1958 | 10 h Messina | | | Negri / Tedeschi | | raced |
| 17.8.1958 | Zeltweg [Sports] | 118 | | Ulf Norinder | Ulf Norinder | DNF |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 141 | | Hap Sharp | Dave Morgan | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 141 | | Hap Sharp | Dave Morgan | DNA |
| 7.9.1958 | USAC Lime Rock | 28 | #2425 | Bob Kuhn | | 6th |
| 21.9.1958 | GP Berlin | 21 | | Adolfo Tedeschi | Adolfo Tedeschi | raced |
| 28.9.1958 | USAC Watkins Glen | 12 | #2425 | Bob Kuhn | Lieutenant Colonel Robert Kuhn | 5th |
| 5.10.1958 | Innsbruck [S+1.1] | 95 | | Adolfo Tedeschi | Adolfo Tedeschi | DNA |
| 11.10.1958 | Preliminary Venice [CM+DM+EM+FM+BP+CP+DP] | 39 | | David Lane | | raced |
| 11.10.1958 | Preliminary Venice [CM+DM+EM+FM+BP+CP+DP] | 93 | | George Koehne | | 2nd |
| 12.10.1958 | 6 h Venice | 39 | | David Lane | | ?th |
| 25.10.1958 | Preliminary Minden [BM+CM+DM+EM] | | | Chuck Howard | | ?th |