| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 25 | #0706MDTR | Gaston Andrey | | 1st |
| 27.4.1958 | Preliminary Dunnellon [race 3] | 35 | #0668MDTR | Lloyd Casner | | 3rd |
| 27.4.1958 | Dunnellon [Main] | 35 | #0668MDTR | Lloyd Casner | | raced |
| 27.4.1958 | GP Napoli | | | Adrian Conan Doyle | | 9th |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 25 | #0706MDTR | Gaston Andrey | | ?th |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 25 | #0706MDTR | Gaston Andrey | | 4th |
| 11.5.1958 | Targa Florio | 90 | #0682MDTR | Starrabba / Cortese | | 7th |
| 11.5.1958 | Targa Florio | 96 | #0670MDTR | Cammarota / Tramontana | | 10th |
| 15.5.1958 | Eläintarhanajo | 3 | #0702MDTR | Lars Finnilä | Scuderia Askolin | 9th |
| 15.5.1958 | Aspern [S+1.5] | 4 | | Adrian Conan Doyle | Ecurie Léman | raced |
| 15.5.1958 | Aspern [S+1.5] | 5 | | Peter Monteverdi | Peter Monteverdi | DNA |
| 15.5.1958 | Aspern [S+1.5] | 12 | | Franco Cortese | Franco Cortese | 2nd |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 25 | #0706MDTR | Gaston Andrey | Mike Garber | 3rd |
| 25.5.1958 | GP des Frontières | 12 | #0696MDTR | Fernand Tavano | | DNF |
| 31.5.1958 | Preliminary La Junta [BM+CM+DM+EM+FM+GM] | 11 | #0664MDTR | Ray Jones | A. D. Logan | 1st |
| 31.5.1958 | ICNSCC Deer Park [Modified] | | #0662MDTR | Frank Becker | | 4th |
| 31.5.1958 | ICNSCC Deer Park [Formula Libre] | | #0662MDTR | Frank Becker | | 2nd |
| 1.6.1958 | SCCA Regional La Junta [BM+CM+DM+EM+BP+CP+DP] | 11 | #0664MDTR | Ray Jones | A. D. Logan | 1st |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 25 | #0706MDTR | Gaston Andrey | | 6th |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 30 | #0660MDTR | William Helburn | | 12th |
| 7.6.1958 | Preliminary Eagle Mountain [race 3] | | #0664MDTR | Ray Jones | A. D. Logan | 2nd |
| 8.6.1958 | SCCA Regional Thompson [BM+CM+EM+FM] | 125 | #0706MDTR | Gaston Andrey | | DNA |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 10] | | #0664MDTR | Ray Jones | A. D. Logan | 2nd |
| 15.6.1958 | SCCA National Lime Rock [BM+CM+DM+EM+FM] | 25 | #0706MDTR | Gaston Andrey | | 7th |
| 15.6.1958 | Prix de Paris [S2.0] | | #0696MDTR | Fernand Tavano | | 2nd |
| 22.6.1958 | Circuito di Caserta [S2.0] | | #0682MDTR | Gaetano Starrabba | | 4th |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 25 | #0706MDTR | Gaston Andrey | | 4th |
| 6.7.1958 | Circuito di Sassari | | #0682MDTR | Gaetano Starrabba | | DNF |
| 20.7.1958 | 10 h Messina | | | Starrabba / Cortese | | raced |
| 3.8.1958 | SCCA Regional Shelton [S+1.5] | 121 | #0662MDTR | Frank Becker | | 2nd |
| 10.8.1958 | Kanonloppet [Sports] | 8 | #0702MDTR | Fred Geitel | Scuderia Askolin | 11th |
| 16.8.1958 | Roskilde Ring [S+1.5] | 22 | #0702MDTR | Fred Geitel | Scuderia Askolin | raced |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 25 | #0706MDTR | Gaston Andrey | | DNF |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 45 | #0698MDTR | Gilbert Geitner | | 4th |
| 24.8.1958 | Hourglass Field [S+1.5] | | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 6th |
| 24.8.1958 | Hourglass Field [Unlimited] | | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 2nd |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 24 | #0664MDTR | Ray Jones | A. D. Logan | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 24 | #0664MDTR | Ray Jones | A. D. Logan | DNA |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 25 | #0706MDTR | Gaston Andrey | | 7th |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 45 | #0698MDTR | Gilbert Geitner | | 8th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 102 | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 15th |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 135 | #0668MDTR | Allen Markelson | | 9th |
| 31.8.1958 | Deer Park [CM+DM+EM] | | #0662MDTR | Frank Becker | | 2nd |
| 1.9.1958 | SCCA National Thompson [BM+CM+DM+EM+FM] | 25 | #0706MDTR | Gaston Andrey | | 6th |
| 1.9.1958 | SCCA National Thompson [BM+CM+DM+EM+FM] | 45 | #0698MDTR | Gilbert Geitner | | 8th |
| 1.9.1958 | SCCA National Thompson [BM+CM+DM+EM+FM] | 135 | #0668MDTR | Allen Markelson | | 9th |
| 7.9.1958 | USAC Lime Rock | 32 | #0668MDTR | Allen Markelson | | 3rd |
| 13.9.1958 | Tourist Trophy | 23 | #0696MDTR | Tavano / Delaroche | Fernand Tavano | DNA |
| 14.9.1958 | SCCA Regional Bridgehampton [Modified] | 45 | #0698MDTR | Gilbert Geitner | | 6th |
| 20.9.1958 | GP Watkins Glen | 45 | #0698MDTR | Gilbert Geitner | A. H. Burrough | 8th |
| 20.9.1958 | SCCA National Watkins Glen [FM+GM+HM] | 45 | #0698MDTR | Gilbert Geitner | A. H. Burrough | DNA |
| 21.9.1958 | GP Berlin | 23 | #0682MDTR | Gaetano Starrabba | Gaetano Starrabba | ?th |
| 21.9.1958 | USAC Marlboro | 35 | #0668MDTR | Allen Markelson | | 5th |
| 21.9.1958 | Del Mar [Modified] | | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 4th |
| 21.9.1958 | Coupes d'Automne | | #0696MDTR | Fernand Tavano | | 1st |
| 28.9.1958 | USAC Watkins Glen | 35 | #0668MDTR | Allen Markelson | | DNF |
| 28.9.1958 | Hourglass Field [BM+CM+DM+EM] | | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 6th |
| 5.10.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+GM] | 25 | #0706MDTR | Gaston Andrey | | 4th |
| 5.10.1958 | SCCA Regional Thompson [Modified+UR] | 45 | #0698MDTR | Gilbert Geitner | Gil Geitner | 2nd |
| 12.10.1958 | USAC Riverside | 121 | #0662MDTR | Frank Becker | Team Empire | 17th |
| 12.10.1958 | USAC Riverside | 135 | #0668MDTR | Allen Markelson | Al Markelson | 15th |
| 19.10.1958 | SCCA Regional Lime Rock [Main] | 45 | #0698MDTR | Gilbert Geitner | | 2nd |
| 2.11.1958 | Oklahoma Petite GP | 111 | #0664MDTR | Ray Jones | | 4th |
| 2.11.1958 | SCCA Regional Oklahoma [Modified +2.0] | 111 | #0664MDTR | Ray Jones | | 2nd |
| 9.11.1958 | SCCA Regional Laguna Seca [EM+FM] | 102 | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 10th |
| 9.11.1958 | SCCA Regional Laguna Seca [EM+FM] | 121 | #0662MDTR | Frank Becker | Frank Becker | DNF |
| 23.11.1958 | Pomona [EM+FM+GM+HM] | 65 | #0708MDTR | Jack Nethercutt | Jack Nethercutt | 4th |
| 23.11.1958 | Pomona [BM+CM+DM+EM] | 65 | #0708MDTR | Richie Ginther | Jack Nethercutt | 2nd |
| 30.11.1958 | Hammond [Main] | 111 | #0664MDTR | Ray Jones | A. D. Logan | 2nd |
| 5.12.1958 | Governor's Trophy | 61 | #0678MDTR | Santiago Gonzalez | | 9th |
| 5.12.1958 | Preliminary Governor's Trophy [S2.0] | 61 | #0678MDTR | Santiago Gonzalez | | 9th |
| 5.12.1958 | Preliminary Governor's Trophy [S2.0] | 62 | #0686MDTR | Manolo Perez de la Mesa | | raced |
| 5.12.1958 | Governor's Trophy | 62 | #0686MDTR | Manolo Perez de la Mesa | | 12th |
| 5.12.1958 | Preliminary Governor's Trophy [S2.0] | 145 | #0698MDTR | Gilbert Geitner | | 3rd |
| 5.12.1958 | Governor's Trophy | 145 | #0698MDTR | Gilbert Geitner | | 11th |
| 6.12.1958 | Nassau [Ferrari] | 61 | #0678MDTR | Santiago Gonzalez | | 3rd |
| 6.12.1958 | Nassau [Ferrari] | 62 | #0686MDTR | Manolo Perez de la Mesa | | 4th |
| 7.12.1958 | Nassau Trophy | 15 | | Jan de Vroom | | DNA |
| 7.12.1958 | Nassau Trophy | 61 | #0678MDTR | Santiago Gonzalez | | DNF |
| 7.12.1958 | Nassau Trophy | 62 | #0686MDTR | Manolo Perez de la Mesa | | DNF |
| 7.12.1958 | Nassau Trophy | 145 | #0698MDTR | Gilbert Geitner | | 7th |