| 5.10.1958 | Preliminary Vaca Valley [MG] | 32 | A | Bob Potter | | 1st |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 49 | A | Lendal Gray | | 4th |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 52 | A | Fraser Sibbald | | 5th |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 62 | A | Lee Talbot | | 2nd |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 78 | TC | Richard Ide | R. Ide | 11th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 79 | TD | Peter Tomei | Peter Tomei | 5th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 80 | A | Mike Reid | Mike Reid | 6th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 81 | A | D. J. Hayles | John Hayles | 4th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 82 | A Twin Cam | Colin Shove | Colin Shove | 9th |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 98 | A | Ed Leslie | | 3rd |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 137 | TF | John Miller | | 8th |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 173 | TF | Bob Downing | | 7th |
| 5.10.1958 | Preliminary Vaca Valley [MG] | 248 | A | Rick Hilgers | | 6th |
| 11.10.1958 | 3 h Autosport | 10 | A | Ken Mackenzie | Ecurie Chiltern | 3rd |
| 11.10.1958 | 3 h Autosport | 14 | A | Chris Tooley | C. P. Tooley | 6th |
| 11.10.1958 | 3 h Autosport | 15 | A | J. A. P. Trafford | J. A. P. Trafford | DNA |
| 11.10.1958 | 3 h Autosport | 16 | A | Bob Vincent | R. Vincent | DNA |
| 11.10.1958 | 3 h Autosport | 17 | A | David Dixon | Ecurie Chiltern | DNA |
| 11.10.1958 | 3 h Autosport | 18 | A | Tommy Entwistle | T. Entwistle | DNA |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 26 | A | Denise Woolley | Miss Denise Woolley | DNA |
| 11.10.1958 | 1 h Snetterton | 43 | A Twin Cam | Dick Fitzwilliam | Fitzwilliam Racing Team | 11th |
| 11.10.1958 | 1 h Snetterton | 47 | A Twin Cam | Alan Foster | R. W. Jacobs | 5th |
| 11.10.1958 | 1 h Snetterton | 49 | A | David Dixon | Ecurie Chiltern | DNA |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 66 | A | P. N. Gouk | P. N. Gouk | DNA |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 77 | TD | Harry Ratcliffe | Harry Ratcliffe | DNA |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 81 | A | T. Johnson | K. J. Coffey | DNA |
| 11.10.1958 | LCCC Oulton Park [Sports] | 81 | A | T. Johnson | K. J. Coffey | DNA |
| 11.10.1958 | LCCC Oulton Park [S1.5] | 110 | A | Tom Threlfall | Tom Threlfall | DNA |
| 11.10.1958 | Preliminary Venice [GM+HM+EP+FP+GP+HP] | | | | | raced |
| 11.10.1958 | Preliminary Venice [GM+HM+EP+FP+GP+HP] | | | | | raced |
| 12.10.1958 | 6 h Venice | 3 | A | Sheldon Dobkin | | raced |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 11 | A | Bill Victor | | 5th |
| 12.10.1958 | SCCA Regional Wilmot [GP+HP+IM+Sedan] | 11 | TD | Jim Bell | | 6th |
| 12.10.1958 | Consolation Wilmot [EP+FP+HM] | 11 | A | Bill Victor | | 2nd |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 17 | A | Barry Barrett | Barry Barrett | 24th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 25 | A | Jim Chaffee | Jim Chaffee | DNF |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 34 | TD | Cliff Hensley | Cliff Hensley | 11th |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 40 | TC | Steve Dredge | Steve Dredge | 15th |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 46 | TD | Doug Sharman | Doug Sharman | 13th |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 61 | TD | Phil Carter | Phil Carter | 5th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 62 | A | John Lumkin | John Lumkin | 17th |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 68 | A | Steve Wendt | | DNS |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 100 | A | Art Greycloud | Art Greycloud | DNA |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 101 | TF | Jack Bleak | Jack Bleak | 8th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 131 | A Twin Cam | Jim Parkinson | Bill Pringle | DNF |
| 12.10.1958 | Riverside [GM+HM+GP+HP] | 134 | TD | Don Burhop | Don Burhop | DNA |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | 18 | A Coupe | Richard Stolz | | 3rd |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | 23 | A | Murray Clark | | 2nd |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | 114 | A | Loren Lorenzetti | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | Earl Simpson | | raced |
| 18.10.1958 | SCCA Regional Lime Rock [FP] | | A | | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 18 | A Coupe | Richard Stolz | | 6th |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 23 | A | Murray Clark | | 5th |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 30 | A | Doug Diffenderfer | | 10th |
| 19.10.1958 | SCCA Regional Lime Rock [GP+HP+HM] | 56 | TC | Arch McNeill | | 5th |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 124 | A | Ed Zurhorst | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [GP+HP+HM] | 165 | TD | Robert Purdy | | 6th |
| 19.10.1958 | SCCA Regional Lime Rock [GP+HP+HM] | 186 | TD | W. Hall | | DNF |
| 25.10.1958 | Preliminary Dothan [Modified+AP+BP+CP+DP+EP] | 120 | A Twin Cam | Lup Rainwater | George Gastrell | DNF |
| 25.10.1958 | Preliminary Minden [FP+GP+HP] | | A | Richard Quint | | 1st |
| 25.10.1958 | Preliminary Minden [FP+GP+HP] | | TF | Bob Downing | | ?th |
| 25.10.1958 | Preliminary Minden [FP+GP+HP] | | A | Eugene Smith | | 3rd |
| 26.10.1958 | Minden [S1.5] | 00 | A | Loyal Davies | | 10th |
| 26.10.1958 | Minden [S1.5] | 25 | A | Jim Chaffee | | 9th |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 33 | A | Hutchinson | Hutchinson | DNA |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 37 | TD | Dick Heckman | Richard Hickman | DNA |
| 26.10.1958 | Preliminary Dothan [Novice] | 41 | A | Jayne Ruskin | Jayne Ruskin | raced |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 41 | A | Jayne Ruskin | Jayne Ruskin | 5th |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 47 | A | David Newton | David Newton | DNA |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 120 | A Twin Cam | Lup Rainwater | George Gastrell | DNS |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 155 | A | Marks | Marks | DNA |
| 26.10.1958 | SCCA Regional Dothan [MGA+GP+HP+HM] | 180 | A | I. W. Stephenson | Scuderia Stephenson | DNA |
| 26.10.1958 | Vineland [GP+HP+JP] | | | | | DNF |
| 26.10.1958 | Vineland [FP] | | A | Murray Clark | | ?th |
| 26.10.1958 | Vineland [FP] | | A | Brad Howes | | ?th |
| 26.10.1958 | Minden [EP+FP+GP+HP] | | TF | Bob Downing | | ?th |
| 26.10.1958 | Vineland [FP] | | A | Dan Donoghue | | ?th |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 70 | A | Joe Catron | Robert S. Bertrand | DNA |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 77 | A | Richard Elms | Richard A. Elms | DNA |
| 1.11.1958 | Preliminary Palm Springs [Ladies+FIII] | 123 | A | Barb Nieland | D. W. Nieland | DNA |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 123 | A | Beavis / Nieland | D. W. Nieland | DNA |
| 2.11.1958 | SCCA National Palm Springs [EP+FP+GP+HP] | 70 | A | Joe Catron | Robert S. Bertrand | 10th |
| 2.11.1958 | SCCA National Palm Springs [EP+FP+GP+HP] | 77 | A | Richard Elms | Richard A. Elms | 11th |
| 2.11.1958 | SCCA National Palm Springs [EP+FP+GP+HP] | 123 | A | Barb Nieland | D. W. Nieland | 13th |
| 2.11.1958 | Palm Springs [Ladies+Sedan+FIII] | 123 | A | Barb Nieland | D. W. Nieland | DNA |
| 2.11.1958 | SCCA Regional Oklahoma [Production 2.0] | | A | Tom Hall | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Modified 2.0] | | A | Ed Garner | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 2.0] | | A | Revon Craig | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 2.0] | | A | Donald Lummis | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Modified 2.0] | | TD | Ed Spilman | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 3.5+HM] | | A | John Killian | | ?th |
| 2.11.1958 | SCCA Regional Oklahoma [Production 3.5+HM] | | A | Tom Hall | | ?th |
| 9.11.1958 | SCCA Regional Laguna Seca [FP] | 15 | A | Harold Greenberg | Harold Greenberg | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [FP] | 105 | A | Richard Quint | Dick Quint | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [FP] | | A | George McDowell | Geo. McDowell | DNA |