| 11.1.1958 | GP Ardmore | 4 | | George Lawton | | 3rd |
| 11.1.1958 | GP Ardmore | 7 | | Max Richards | | DNA |
| 11.1.1958 | GP Ardmore | 8 | #AHS 3908 | Graham Pierce | Kapui Ropa | DNA |
| 11.1.1958 | Preliminary Miami [BM+CM+DM+EM+FM+BP] | 70 | | Ernest Robinson | | 16th |
| 12.1.1958 | SCCA National Miami [CP+DP+EP+GM] | 19 | | Pete Harrison | | DNF |
| 12.1.1958 | Preliminary Miami [CP+DP+EP+GM] | 19 | | Pete Harrison | | 19th |
| 12.1.1958 | SCCA National Miami [CP+DP+EP+GM] | 69 | | Ralph Deshon | | DNF |
| 12.1.1958 | Preliminary Miami [CP+DP+EP+GM] | 69 | | Ralph Deshon | | 9th |
| 12.1.1958 | SCCA National Miami [BM+CM+DM+EM+FM+BP] | 70 | | Ernest Robinson | | 18th |
| 12.1.1958 | Preliminary Miami [CP+DP+EP+GM] | 188 | | Fred Moore | | 7th |
| 12.1.1958 | SCCA National Miami [CP+DP+EP+GM] | 188 | | Fred Moore | | 5th |
| 27.1.1958 | South Pacific Championship | | #AHS 3907 | John Roxburgh | | 3rd |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 21 | | Arthur Morton | Arthur Morton | 14th |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 22 | | Gil Bloemendaal | Gil Bloemendaal | DNA |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 47 | | Earl Drew | J. Earl Drew | 16th |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 97 | | Thomas O'Neill | Thomas O'Neill | DNF |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 163 | #AHS 3709 | Jack Breskovich | Jack Breskovich | 5th |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 164 | | Robert Windhorst | Robert Windhorst | 2nd |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 187 | | William Redden | William Redden | 15th |
| 8.2.1958 | Preliminary Pomona [Production 2.7] | 252 | | James Coffin | James Coffin | DNA |
| 9.2.1958 | Pomona [Production +2.0] | 21 | | Arthur Morton | Arthur Morton | 12th |
| 9.2.1958 | Pomona [Production +2.0] | 22 | | Gil Bloemendaal | Gil Bloemendaal | DNA |
| 9.2.1958 | Pomona [Production +2.0] | 47 | | Earl Drew | J. Earl Drew | 14th |
| 9.2.1958 | Pomona [Production +2.0] | 97 | | Thomas O'Neill | Thomas O'Neill | DNS |
| 9.2.1958 | Pomona [Production +2.0] | 163 | #AHS 3709 | Jack Breskovich | Jack Breskovich | 7th |
| 9.2.1958 | Pomona [Ladies] | 164 | | Barbara Windhorst | Robert Windhorst | DNA |
| 9.2.1958 | Pomona [Production +2.0] | 164 | | Robert Windhorst | Robert Windhorst | 3rd |
| 9.2.1958 | Pomona [Production +2.0] | 187 | | William Redden | William Redden | 15th |
| 9.2.1958 | Pomona [Production +2.0] | 252 | | James Coffin | James Coffin | DNA |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 36 | | Edward Stone | | DNF |
| 2.3.1958 | SCCA Regional Phoenix [S+1.5] | 131 | | Jim Parkinson | | 12th |
| 2.3.1958 | SCCA Regional Phoenix [Main] | 131 | | Jim Parkinson | | 17th |
| 9.3.1958 | SCCA Regional Boca Raton [CM+DM+EM+FM+GM+BP+CP+DP] | 41 | | Ernest Robinson | | raced |
| 9.3.1958 | Preliminary Boca Raton [CM+DM+EM+FM+GM] | 41 | | Ernest Robinson | | raced |
| 22.3.1958 | 12 h Sebring | 27 | | Geitner / Stiles / Kunz | Hambro Automotive Corporation | 14th |
| 22.3.1958 | 12 h Sebring | 28 | | Kinchloe / Moore | Hambro Automotive Corporation | 17th |
| 22.3.1958 | 12 h Sebring | 29 | | Ehrman / Cuomo | Hambro Automotive Corporation | 23rd |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 48 | | Prudence Baxter | | - |
| 23.3.1958 | SCCA Regional Stockton [S+1.5] | 66 | #AHS 3610 | Gordon Glyer | | 7th |
| 23.3.1958 | SCCA Regional Stockton [Production +1.6] | 106 | | Bert Smeeden | | 12th |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 106 | | Bert Smeeden | | 9th |
| 23.3.1958 | SCCA Regional Stockton [Production +1.6] | 130 | | Ronnie Berryman | | 6th |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 130 | | Ronnie Berryman | | 10th |
| 23.3.1958 | SCCA Regional Stockton [Production +1.6] | 133 | | Dick Newhall | | 15th |
| 29.3.1958 | BARC Mallory Park [S+1.1] | 48 | | Dick Protheroe | Dick Protheroe | 2nd |
| 30.3.1958 | Willow Springs [Main] | 33 | | Leo Rood | Leo Rood | DNF |
| 30.3.1958 | Willow Springs [Production +1.6] | 33 | | Leo Rood | Leo Rood | DNA |
| 30.3.1958 | SCC-BC Abbotsford [Race 1] | 66 | | John Nissen | | 3rd |
| 30.3.1958 | Willow Springs [Production +1.6] | 88 | | Warren Wardell | Warren Wardell | DNA |
| 30.3.1958 | Willow Springs [Novice] | 88 | | Warren Wardell | Warren Wardell | 3rd |
| 30.3.1958 | Willow Springs [Main] | 88 | | Warren Wardell | Warren Wardell | DNA |
| 30.3.1958 | SCC-BC Abbotsford [Race 1] | 408 | | T. A. Rees | | 1st |
| 5.4.1958 | BRSCC Full Sutton [PS] | 48 | | M. J. L. Brook | M. J. L. Brook | DNA |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 49 | | D. Brook | D. Brook | 11th |
| 5.4.1958 | BRSCC Full Sutton [PS] | 49 | | D. Brook | D. Brook | 7th |
| 5.4.1958 | BRSCC Full Sutton [PS] | 60 | | M. L. Bailey | M. L. Bailey | DNA |
| 5.4.1958 | BRSCC Full Sutton [Formula Libre] | 60 | | M. L. Bailey | M. L. Bailey | 6th |
| 5.4.1958 | BRSCC Full Sutton [PS] | 61 | | C. Hanson | Team Triples | 4th |
| 5.4.1958 | BRSCC Full Sutton [PS] | 62 | | A. G. Kellett | Team Triples | 2nd |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 62 | | A. G. Kellett | | 9th |
| 7.4.1958 | National Brands Hatch [Production] | 94 | | Graham Warner | Chequered Flag | 2nd |
| 12.4.1958 | Grand Central [1820 Settlers] | 5 | | Tony Maggs | | ?th |
| 12.4.1958 | Grand Central [Sports] | 15 | | F. J. Dyason | | DNA |
| 12.4.1958 | Grand Central [Sports] | 16 | | Tony Maggs | | ?th |
| 12.4.1958 | Grand Central [Sports] | 20 | | George Pfaff | | 6th |
| 12.4.1958 | Grand Central [Sports] | 25 | | Wally Schoch | | raced |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 9 | #AHS 3508 | Bill Friedauer | Bill Friedauer | DNF |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 23 | | Roland Berry | Roland Berry | DNA |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 60 | | Chuck Parsons | Charles Parsons | 16th |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 84 | | Reed Glover | Reed Glover | 14th |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 148 | | Prudence Baxter | Prudence Baxter | 8th |
| 20.4.1958 | SCCA National Marlboro [BP+CP+DP] | 57 | | Dick Thompson | | 3rd |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 57 | | Dick Thompson | | 6th |
| 20.4.1958 | SCCA National Marlboro [BP+CP+DP] | 73 | | Fred Moore | | 2nd |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 14 | | Kenneth Flynn | | 13th |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 19 | | Ray Cover | | 10th |
| 27.4.1958 | WJC Charterhall [S+1.5] | 47 | | C. Hanson | Team Triple "S" | DNF |
| 27.4.1958 | WJC Charterhall [R/S+500] | 48 | | Jimmy Blumer | J. H. Lawson | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 48 | | Jimmy Blumer | J. H. Lawson | ?th |
| 27.4.1958 | WJC Charterhall [S+1.5] | 49 | | Julian Sutton | J. Sutton | DNA |
| 27.4.1958 | WJC Charterhall [R/S+500] | 49 | | Julian Sutton | J. Sutton | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 50 | | Candido DaMota | | 9th |
| 27.4.1958 | WJC Charterhall [R/S+500] | 50 | | W. A. Thompson | W. A. Thompson | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 50 | | W. A. Thompson | W. A. Thompson | ?th |
| 27.4.1958 | WJC Charterhall [S+1.5] | 51 | #AHS 3904 | Ted Evans | B. L. Carlaw | ?th |
| 27.4.1958 | WJC Charterhall [R/S+500] | 51 | #AHS 3904 | Ted Evans | B. L. Carlaw | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 51 | | Robert Shirey | | 11th |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 142 | | Joe Giubardo | | 12th |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 247 | | Fred Spross | | 6th |
| 27.4.1958 | SCCA Regional Louisville [BP+CP+DP+EP+FP Porsche] | | | Allan Barker | | ?th |
| 27.4.1958 | Preliminary Louisville [BP+CP+DP] | | | Allan Barker | | 7th |
| 1958 | Hawaii [S+1.6] | | | Alan Dowd | | DNF |
| 1958 | Hawaii [Main] | | | Richard Morgan | | 7th |
| 1958 | Hawaii [Main] | | | Alan Dowd | | raced |
| 1958 | Preliminary Hawaii [Modified +1.6] | | | Richard Morgan | | 2nd |
| 1958 | Hawaii [S+1.6] | | | Dexter Whitten | | raced |
| 1958 | Hawaii [S+1.6] | | | Richard Morgan | | 5th |
| 1958 | Hawaii [Consolation] | | | Alan Dowd | | 2nd |