| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 44 | | John Wait | | 29th |
| 20.9.1958 | Preliminary Galveston [HM+MG+HP] | | | Louis Heuss | | 6th |
| 21.9.1958 | SCCA Regional Galveston [MG+HM+HP+KP+JP+GT] | | | Louis Heuss | | ?th |
| 28.9.1958 | WJC Charterhall [GT] | 30 | | Arnold Burman | A. Burman | DNA |
| 28.9.1958 | WJC Charterhall [S1.5] | 30 | | Arnold Burman | A. Burman | ?th |
| 28.9.1958 | Hourglass Field [FP+GP+HP] | | | Bill Louden | | ?th |
| 5.10.1958 | SCCA Regional Thompson [GP+HP] | 12 | | John Barber | | 14th |
| 5.10.1958 | SCCA Regional Thompson [GM+HM] | 12 | | Peter Shavney | John Barber III | 8th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 75 | | John Sprinzel | Speedwell | 7th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 76 | | Jon Goddard-Watts | Jon Goddard-Watts | 10th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 77 | | Tony Sketon | Tony Skelton | 12th |
| 5.10.1958 | SCCA National Vaca Valley [GM+HM+GP+HP] | 289 | | George Green | | 16th |
| 11.10.1958 | 3 h Autosport | 6 | | Mike McKee | Mann Egerton & Co. Ltd. | DNA |
| 11.10.1958 | 3 h Autosport | 24? | | John Sprinzel | | ?th |
| 11.10.1958 | 1 h Snetterton | 35 | | John Sprinzel | Speedwell Stable | 15th |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 52 | | Peter Grant | Peter Grant | DNA |
| 11.10.1958 | 1 h Snetterton | 60 | | Paddy Gaston | Sqd. Ldr. J. H. Gaston | 14th |
| 12.10.1958 | SCCA Regional Wilmot [GP+HP+IM+Sedan] | 7 | | James Mautz | | 3rd |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 89 | | Ray Pickering | Bill Pringle | 6th |
| 12.10.1958 | 6 h Venice | 99 | | John Leahy | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [GP+HP+HM] | 59 | | James Miller | | 8th |
| 19.10.1958 | SCCA Regional Lime Rock [GP+HP+HM] | 181 | | | | DNF |
| 25.10.1958 | Preliminary Minden [FP+GP+HP] | | | Louis Issel | | ?th |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 177 | | Steve Robinson | Stephen Robinson | DNA |
| 26.10.1958 | Minden [EP+FP+GP+HP] | | | Louis Issel | | ?th |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 124 | | Bill Louden | Chester Kidd | ?th |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | | | John Hooper | | DNA |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | | | Phil Binks | | DNA |
| 1.11.1958 | 4 h Cape Town | | | Brown / Zoccola | | 4th |
| 2.11.1958 | SCCA National Palm Springs [EP+FP+GP+HP] | 124 | | Bill Louden | Chester Kidd | 12th |
| 2.11.1958 | SCCA National Palm Springs [EP+FP+GP+HP] | | | Phil Binks | | 15th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 2.0] | | | Louis Heuss | | ?th |
| 2.11.1958 | SCCA National Palm Springs [EP+FP+GP+HP] | | | John Hooper | | 17th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 3.5+HM] | | | Robert Bird | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 3.5+HM] | | | Larry Nelson | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 2.0] | | | Robert Bird | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 2.0] | | | Larry Nelson | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 3.5+HM] | | | Steve Robinson | | ?th |
| 9.11.1958 | SCCA Regional Laguna Seca [GP+HP] | 22 | | | | raced |
| 15.11.1958 | 9 h Johannesburg | 15 | | Zoccola / Payne | M. A. Zoccola | raced |
| 16.11.1958 | SCCA Regional Marlboro [EP+FP+GP+HP+HM+FIII] | 7 | | Dick Ballard | | 25th |
| 16.11.1958 | Preliminary Marlboro [HM+HP+FIII] | 39 | | | | 16th |
| 16.11.1958 | Preliminary Marlboro [HM+HP+FIII] | 112 | | George McClure | | 11th |
| 16.11.1958 | SCCA Regional Marlboro [EP+FP+GP+HP+HM+FIII] | 112 | | George McClure | | 22nd |
| 16.11.1958 | SCCA Regional Marlboro [EP+FP+GP+HP+HM+FIII] | 170 | | Barker | | 21st |
| 16.11.1958 | Preliminary Marlboro [HM+HP+FIII] | 170 | | Barker | | 9th |
| 22.11.1958 | 6 h Pomona | | | Louden / Bowser | | 27th |
| 23.11.1958 | Pomona [FP+GP+HP] | | | Ross | | 11th |
| 23.11.1958 | Pomona [FP+GP+HP] | | | Binks | | 14th |
| 30.11.1958 | Phoenix [Ladies] | | | Marilyn Oneto | | ?th |
| 30.11.1958 | Phoenix [Novice] | | | John Oneto | | ?th |
| 30.11.1958 | Phoenix [HM+FP+HP] | | | Robert Brigham | | 4th |
| 30.11.1958 | Phoenix [Production] | | | John Oneto | | 19th |
| 30.11.1958 | Phoenix [HM+FP+HP] | | | John Oneto | | 5th |
| 30.11.1958 | Phoenix [Production] | | | Robert Brigham | | 17th |
| 6.12.1958 | Nassau [Locals] | 16N | | E. Huber | | raced |
| 6.12.1958 | Nassau [Locals] | 39N | | David Lowe | | DNF |
| 7.12.1958 | Bahamas Cup | 16N | | E. Huber | | raced |
| 7.12.1958 | Bahamas Cup | 39N | | David Lowe | | raced |
| 26.12.1958 | BRSCC Brands Hatch [GT] | 54 | | Ken Mackenzie | K. W. Mackenzie | DNA |
| 26.12.1958 | BRSCC Brands Hatch [GT] | 55 | | C. R. Wood | C. R. Wood | raced |
| 26.12.1958 | BRSCC Brands Hatch [GT] | 56 | | A. Crisp | A. Crisp | DNA |