| 12.1.1958 | Preliminary Miami [CP+DP+EP+GM] | 31 | Mk III | Charlie Kolb | | 1st |
| 12.1.1958 | SCCA National Miami [CP+DP+EP+GM] | 31 | Mk III | Charlie Kolb | | DNF |
| 12.1.1958 | Preliminary Miami [CP+DP+EP+GM] | 102 | Mk II | Charles Kurtz | | 2nd |
| 12.1.1958 | SCCA National Miami [CP+DP+EP+GM] | 102 | Mk II | Alan Patterson | | DQ |
| 9.3.1958 | Preliminary Mansfield [FM+GM+HM] | 143 | | Ed French | | 5th |
| 9.3.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM] | 143 | | Ed French | | 8th |
| 22.3.1958 | 12 h Sebring | 48 | Mk II | Wyllie / Dietrich / Wyllie | Dr. M. R. J. Wyllie | DNS |
| 22.3.1958 | 12 h Sebring | 57 | Mk II | Baptista / Martin / Warren | Elva Engineering Co. | DNF |
| 22.3.1958 | 12 h Sebring | 58 | Mk III | Bradley / Bentley | Elva Engineering Co. | 41st |
| 22.3.1958 | 12 h Sebring | 77 | Mk II | Kurtz / Kammer / Patterson | Avant Corp. | DNF |
| 22.3.1958 | 12 h Sebring | 78 | Mk II | Milliken / Ripley / Argetsinger | Ripley Motor Co. | 28th |
| 5.4.1958 | BRSCC Full Sutton [Formula Libre] | 74 | Mk I B | Bernard Cox | | 5th |
| 5.4.1958 | BRSCC Full Sutton [SR/R] | 74 | Mk I B | Bernard Cox | | 10th |
| 5.4.1958 | BRSCC Full Sutton [SR1.5/R1.5] | 74 | Mk I B | Bernard Cox | | 6th |
| 7.4.1958 | National Brands Hatch [S1.1] | 50 | Mk III | John Brown | John Brown | 3rd |
| 7.4.1958 | National Brands Hatch [S1.1] | 51 | Mk III | Mike McKee | Mike McKee | 4th |
| 7.4.1958 | National Brands Hatch [S1.1] | 52 | | Ken Simmons | K. Simmons | raced |
| 7.4.1958 | Goodwood [S1.1] | | Mk III | Chris Bristow | | 6th |
| 7.4.1958 | Goodwood [S1.1] | | Mk III | Eugene Hall | | raced |
| 7.4.1958 | Goodwood [S1.1] | | | Robbie MacKenzie-Low | | raced |
| 12.4.1958 | British Empire Trophy | 20 | Mk III | Robbie MacKenzie-Low | Elva Racing Team | DNQ |
| 12.4.1958 | British Empire Trophy | 21 | Mk III | John Muirhead | Elva Racing Team | DNQ |
| 12.4.1958 | British Empire Trophy | 22 | Mk III | Chris Bristow | Elva Racing Team | DNQ |
| 12.4.1958 | British Empire Trophy | 23 | Mk III | John Brown | Elva Racing Team | DNQ |
| 12.4.1958 | British Empire Trophy | 24 | | Ian Raby | Elva Racing Team | DNQ |
| 12.4.1958 | British Empire Trophy | 30 | Mk III | Bernard Cox | B. J. Cox | DNQ |
| 19.4.1958 | Aintree 200 [S1.1] | 60 | Mk III | Chris Bristow | Elva Racing Team | raced |
| 19.4.1958 | Aintree 200 [S1.1] | 61 | Mk III | Robbie MacKenzie-Low | Elva Racing Team | 3rd |
| 19.4.1958 | Aintree 200 [S1.1] | 62 | Mk III | Bernard Cox | Elva Racing Team | raced |
| 19.4.1958 | Aintree 200 [S1.1] | 63 | Mk III | Eugene Hall | Elva Racing Team | raced |
| 19.4.1958 | Aintree 200 [S1.1] | 64 | Mk III | John Brown | Elva Racing Team | raced |
| 20.4.1958 | SCCA National Marlboro [BM+CM+DM+EM+FM] | 186 | | Chuck Dietrich | | 9th |
| 20.4.1958 | SCCA National Marlboro [EP+GM] | 186 | | Chuck Dietrich | | 2nd |
| 20.4.1958 | BRSCC Brands Hatch [S1.1] | | Mk III | Mike McKee | | 2nd |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 7 | Mk II | Millard Ripley | | 4th |
| 27.4.1958 | WJC Charterhall [S1.5] | 8 | | P. H. Howarth | P. Howarth | raced |
| 27.4.1958 | WJC Charterhall [R/S+500] | 20 | Mk II | Malcolm Wayne | M. J. Wayne | raced |
| 27.4.1958 | WJC Charterhall [S1.5] | 20 | Mk II | Malcolm Wayne | M. J. Wayne | raced |
| 27.4.1958 | WJC Charterhall [S2.0] | 20 | Mk II | Malcolm Wayne | M. J. Wayne | raced |
| 27.4.1958 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM] | 62 | Mk II | Allen Doe | | 15th |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | 99 | | Wearn | | raced |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | 186 | Mk II | Frank Baptista | | 8th |
| 27.4.1958 | GP Napoli [S1.1] | | Mk III | Eugene Hall | | 4th |
| 27.4.1958 | SCCA Regional Louisville [BM+CM+DM+EM+FM+GM] | | | Mike Ward | | 4th |
| 27.4.1958 | Preliminary Louisville [BM+CM+DM+EM+FM+GM] | | | Chuck Dietrich | | ?th |
| 3.5.1958 | Daily Express Silverstone [S1.5] | | | Robbie MacKenzie-Low | | 5th |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 35 | Mk II | Frank Baptista | | 1st |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 35 | Mk II | Frank Baptista | | 1st |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 37 | Mk II | Charles Kurtz | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 37 | Mk II | Charles Kurtz | | ?th |
| 10.5.1958 | 4 h Relay Harewood Acres | 14A | Mk I | G. R. Rusznyak | Ecurie Volanti | 9th |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 6 | Mk II | Chuck Dietrich | Charles H. Dietrich, Jr. | 3rd |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 29 | Mk II | Allen Doe | Allen Doe | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 35 | Mk II | Frank Baptista | Continental Motors, Ltd. | DNA |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 37 | Mk II | Charles Kurtz | Charles T. Kurtz III | raced |
| 18.5.1958 | SCCA National Cumberland [GM+HM] | 78 | Mk II | Millard Ripley | Millard G. Ripley | 2nd |
| 24.5.1958 | BRSCC Full Sutton [SR1.5] | 25 | Mk III | Bernard Cox | | 2nd |
| 24.5.1958 | BRSCC Full Sutton [SR/R] | 25 | Mk III | Bernard Cox | | 5th |
| 24.5.1958 | BRSCC Full Sutton [SR] | 25 | Mk III | Bernard Cox | | 6th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 56 | Courier | Tom Barnard | | 4th |
| 25.5.1958 | National Open Crystal Palace [S1.1] | | | Robbie MacKenzie-Low | | 5th |
| 25.5.1958 | National Open Crystal Palace [S1.1] | | | Ian Raby | | 4th |