| 13.4.1958 | GP Avandaro | 9 | 550 RS | Ricardo Rodriguez | | 1st |
| 13.4.1958 | GP Avandaro | | 356 | | | raced |
| 13.4.1958 | GP Avandaro | | 356 | | | raced |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 00 | 356 | Campbell Smidt | | 2nd |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | 4 | 356 A Carrera | J. Rusty Wright | | 1st |
| 20.4.1958 | Preliminary Galveston [FP+GP] | 4 | 356 A Carrera | J. Rusty Wright | | 1st |
| 20.4.1958 | San Salvador | 8 | 550 Spyder | Hubert Wisse | Hubert Wisse | 1st |
| 20.4.1958 | San Salvador | 9 | 550 RS | Ricardo Rodriguez | Ricardo Rodríguez | DNF |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 13 | 356 A Carrera | M. A. Cappiello | | 2nd |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 13 | 356 A Carrera | M. A. Cappiello | | 1st |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 13 | 356 A Carrera | Mrs. Tony Cappiello | | 7th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 14 | 356 | David Elder | | 10th |
| 20.4.1958 | Preliminary Galveston [FP+GP] | 17 | 356 A Carrera | Emory Cantey | | 3rd |
| 20.4.1958 | SCCA Regional Galveston [FP+GP] | 17 | 356 A Carrera | Emory Cantey | | 3rd |
| 20.4.1958 | San Salvador | 17 | 356 Speedster | Pedro Rodriguez | Roberto A. Reyes | 4th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 33 | 356 A Carrera GT Speedster | Emil Pupulidy | | 1st |
| 20.4.1958 | Preliminary Galveston [FM+GM+HM] | 62 | 550 RS | Bobby Burns | | 1st |
| 20.4.1958 | SCCA Regional Galveston [Modified] | 62 | 550 RS | Bobby Burns | | 5th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 66 | 356 | Nagle Bridwell | | 4th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 116 | 356 | Glenn Lazar | | 7th |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 124 | 356 | Morrow Decker | | 8th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 124 | 356 | Morrow Decker | | 17th |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 126 | 356 | Bruce Jennings | | 9th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 126 | 356 | Bruce Jennings | | 9th |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 132 | 356 | Bill Hughes | | 3rd |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 132 | 356 | Bill Hughes | | 3rd |
| 20.4.1958 | SCCA National Marlboro [BM+CM+DM+EM+FM] | 140 | 550 RS | Bob Holbert | | 2nd |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 183 | 356 A Carrera | John Cuevas | | 5th |
| 20.4.1958 | SCCA National Marlboro [FP+GP+HM] | 183 | 356 A Carrera | John Cuevas | | 18th |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 741 | 550 RS | Don Sesslar | | 4th |
| 20.4.1958 | SCCA National Marlboro [BM+CM+DM+EM+FM] | 741 | 550 RS | Don Sesslar | | 3rd |
| 20.4.1958 | Trofeo Nuvolari Montjuich | | | Marques | | 3rd |
| 20.4.1958 | Trofeo Nuvolari Montjuich | | 356 A Carrera | Alex Soler-Roig | | 1st |
| 20.4.1958 | Trofeo Nuvolari Montjuich | | | Francisco Bulto | | 2nd |
| 26.4.1958 | Preliminary Louisville [Novice] | | 356 | | | raced |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 5 | 356 A Carrera GT Speedster | Emil Pupulidy | | 1st |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 12 | 356 A | Floyd Stone | | 20th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 22 | 356 A | Peter Baumberger | | 21st |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 23 | 550 RS | Denise McCluggage | | 3rd |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 25 | 356 A Super | Morrow Decker | | 13th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 33 | 356 A Carrera | Bud Faust | | 7th |
| 27.4.1958 | WJC Charterhall [S2.0] | 39 | 356 A 1600 Super | C. W. Lawson | C. W. Lawson | raced |
| 27.4.1958 | WJC Charterhall [S+1.5] | 39 | 356 A 1600 Super | C. W. Lawson | C. W. Lawson | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 40 | 356 A 1600 Super | Jim Clark | Border Reivers | ?th |
| 27.4.1958 | WJC Charterhall [S2.0] | 40 | 356 A 1600 Super | Jim Clark | Border Reivers | DNF |
| 27.4.1958 | Aguascalientes | 42 | 550 RS | Ricardo Rodriguez | | 1st |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 61 | 550 RS | Briggs Cunningham | | 6th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 63 | 356 A | Asher Chapman | | 23rd |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 65 | 356 | Hayward Anderson | | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 66 | 356 A | Ed Hoyos | | 6th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 67 | 356 A | Antonio Valdes-Dapena | | 10th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 68 | 356 A Carrera GT | Bill Erhart | | 4th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 70 | 356 A | Arthur Mann | | 17th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 71 | 356 A | Bill Ward | | 16th |
| 27.4.1958 | Preliminary Louisville [BM+CM+DM+EM+FM+GM] | 95 | 550 RS | Ed Crawford | | 2nd |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | 95 | 550 RS | Ed Crawford | | 1st |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 110 | 356 A Carrera GT | Bill Welsh | | 3rd |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 117 | 356 | Hodge Brush | | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 141 | 550 | Bill Lewis | | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 144 | 356 A | Joe Trotter | | 14th |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 149 | 356 A Carrera GT | Harry Blanchard | | 2nd |
| 27.4.1958 | Preliminary Louisville [BM+CM+DM+EM+FM+GM] | 174 | 550 RS | Don Sesslar | | 3rd |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | 174 | 550 RS | Don Sesslar | | 2nd |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 333 | 550 | Newton Davis | | 11th |
| 27.4.1958 | Preliminary Dunnellon [race 1] | | 356 A Carrera | Howard Fowler | | 1st |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | 356 | Ed Walsh | | 2nd |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | 356 A | Vollmer | | 4th |
| 27.4.1958 | SCCA Regional Louisville [BP+CP+DP+EP+FP Porsche] | | 356 | Dean Causey | | 6th |
| 27.4.1958 | Preliminary Dunnellon [race 1] | | 356 | Don Holton | | 2nd |
| 27.4.1958 | GP Napoli [S1.5] | | 550 | Ludwig Fischer | | 5th |
| 27.4.1958 | Dunnellon [smaller car Main] | | 356 A Carrera | Howard Fowler | | 2nd |
| 27.4.1958 | Dunnellon [smaller car Main] | | 356 | Don Holton | | 1st |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 8 | 356 | Glenn Lazar | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 8 | 356 | Glenn Lazar | | raced |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 13 | 356 A Carrera | M. A. Cappiello | | ?th |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 13 | 356 A Carrera | M. A. Cappiello | | 2nd |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 23 | 550 RS | Denise McCluggage | | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 23 | 550 RS | Denise McCluggage | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 33 | 356 A Carrera GT Speedster | Emil Pupulidy | | ?th |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 33 | 356 A Carrera GT Speedster | Emil Pupulidy | | 1st |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 56 | 356 A Carrera GT | Gene Hobbs | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 56 | 356 A Carrera GT | Gene Hobbs | | DNA |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 57 | 356 A Carrera | Dick Nash | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 57 | 356 A Carrera | Dick Nash | | ?th |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 74 | 550 RS | Don Sesslar | | 3rd |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 74 | 550 RS | Don Sesslar | | ?th |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 83 | 356 A Carrera | John Cuevas | | DNF |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 83 | 356 A Carrera | John Cuevas | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 127 | 550 RS | Roy Schecter | | ?th |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 127 | 550 RS | Roy Schecter | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 140 | 550 RS | Bob Holbert | | ?th |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 140 | 550 RS | Bob Holbert | | DNA |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 144 | 356 | Bruce Jennings | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 144 | 356 | Bruce Jennings | | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 333 | 550 | Newton Davis | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 333 | 550 | Newton Davis | | DNA |
| 4.5.1958 | Sidar Airfield | | 550 RS | Ricardo Rodriguez | | 1st |
| 10.5.1958 | Novice Tracy [Production 1.6] | 116 | 356 | Duncan Reynard | Duncan Reynard | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 134 | 356 | John France | John France | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 183 | 356 | Tom Hixon | Thomas Hixon | DNA |