| 8.2.1958 | Preliminary Pomona [Production 2.7] | 145 | Plus 4 | Lew Spencer | Rene Pellandrini | 4th |
| 9.2.1958 | Pomona [Ladies] | 113 | TR3 | Ruth Doushkess | Chuck Lowry | DNF |
| 9.2.1958 | Pomona [Production 2.0] | 113 | Plus 4 | Alvin Gebhard | Chuck Lowry | 11th |
| 9.2.1958 | Pomona [Ladies] | 145 | Plus 4 | Barbara Windhorst | Robert Windhorst | 3rd |
| 9.2.1958 | Pomona [Production 2.0] | 145 | Plus 4 | Lew Spencer | Rene Pellandrini | 4th |
| 1.3.1958 | Preliminary Phoenix [Novice] | 4 | Plus 4 | Roger Seargeant | | 10th |
| 1.3.1958 | Preliminary Phoenix [Novice] | 7 | Plus 4 | Jim Crispelle | | 14th |
| 1.3.1958 | Preliminary Phoenix [Novice] | 27 | Plus 4 | Ed Harrington | | 18th |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 4 | Plus 4 | Roger Seargeant | | 7th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 4 | Plus 4 | Roger Seargeant | | 9th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 7 | Plus 4 | Jim Crispelle | | DNF |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 7 | Plus 4 | Jim Crispelle | | 12th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 27 | Plus 4 | Ed Harrington | | 16th |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 27 | Plus 4 | Ed Harrington | | 11th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 84 | Plus 4 | Bill Doushkess | | 11th |
| 2.3.1958 | Preliminary Phoenix [Ladies] | 84 | Plus 4 | Ruth Doushkess | | 5th |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 84 | Plus 4 | Bill Doushkess | | 10th |
| 2.3.1958 | Preliminary Phoenix [Ladies] | 145 | Plus 4 | Barbara Windhorst | | 2nd |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 145 | Plus 4 | Lew Spencer | | 3rd |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 145 | Plus 4 | Lew Spencer | | 5th |
| 9.3.1958 | SCCA Regional Boca Raton [CM+DM+EM+FM+GM+BP+CP+DP] | 64 | | John Cochran | | raced |
| 9.3.1958 | Preliminary Boca Raton [BP+CP+DP+EP] | 64 | | John Cochran | | raced |
| 22.3.1958 | 12 h Sebring | 36 | Plus 4 | Kennedy / Payne / Sherman | Richard Kennedy | 40th |
| 22.3.1958 | Preliminary Stockton [Sedan+Ladies+MG+FIII] | 131 | Plus 4 | Barbara Windhorst | | - |
| 23.3.1958 | SCCA Regional Stockton [Production +1.6] | 47 | Plus 4 | Cliff Wright | | 13th |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 131 | Plus 4 | Alvin Gebhard | | 6th |
| 23.3.1958 | SCCA Regional Stockton [Production +1.6] | 131 | Plus 4 | Lew Spencer | | 5th |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 195 | Plus 4 | Bill Hinshaw | | 7th |
| 29.3.1958 | BARC Mallory Park [Unlimited B] | 66 | Plus 4 | Adrian Belcher | A. Belcher | 10th |
| 29.3.1958 | BARC Mallory Park [Marque] | 67 | Plus 4 | Donald Pacey | D. Pacey | 3rd |
| 29.3.1958 | BARC Mallory Park [Marque] | | Plus 4 | John Looker | J. Looker | raced |
| 5.4.1958 | BRSCC Full Sutton [PS] | 53 | | G. Gartside | G. Gartside | DNA |
| 12.4.1958 | Grand Central [Sports] | 7 | | A. S. McGuiness | | raced |
| 12.4.1958 | Grand Central [Sports] | 10 | Plus 4 | L. F. Cherrie | | 7th |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 145 | Plus 4 | Lew Spencer | Rene Pellandini | DNS |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 145 | Plus 4 | Barbara Windhorst | Rene Pellandini | DNS |
| 20.4.1958 | SCCA National Marlboro [EP+GM] | 16 | | Charles Kelsey | | DNF |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 37 | Plus 4 | Charles Kelsey | | 4th |
| 10.5.1958 | 4 h Relay Harewood Acres | 12P | TR3 | Charles Hoff | Ecurie Sticky Wicket | 22nd |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 47 | Plus 4 | Cliff Wright | Dr. Cliff Wright | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 195 | | Bill Hinshaw | William R. Hinshaw | 6th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 47 | Plus 4 | Cliff Wright | Dr. Cliff Wright | 13th |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 41 | Plus 4 | Charles Kelsey | Charles C. Kelsey, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 111 | Plus 4 | H. B. Williamson | H. B. Williamson | DNA |
| 18.5.1958 | SCCA National Cumberland [DP+EP] | 187 | Plus 4 | W. T. Bosworth | W. T. Bosworth, Jr. | DNA |
| 26.5.1958 | NSCC Mallory Park [S+1.5] | 61 | Plus 4 | Ray Meredith | R. E. Meredith | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 84 | | Ruth Doushkess | Bill Doushkess | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 84 | | Bill Doushkess | Bill Doushkess | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 109 | | Jo Ann Stewart | Jo Ann Stewart | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 144 | | Bill Dredge | Bill Dredge | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 145 | Plus 4 Super Sports | Lew Spencer | Rene Pellandini | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 145 | Plus 4 Super Sports | Barbara Windhorst | Rene Pelladini | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 146 | Plus 4 | Roger Slowi | Roger Slowi | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 245 | Plus 4 | Alvin Gebhard | Rene Pellandini | DNA |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 84 | Plus 4 | Bill Doushkess | Bill Doushkess | 16th |
| 1.6.1958 | Santa Barbara [Ladies] | 84 | Plus 4 | Ruth Doushkess | Bill Doushkess | DNA |
| 1.6.1958 | Santa Barbara [Ladies] | 109 | Plus 4 | Jo Ann Stewart | Jo Ann Stewart | DNA |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 144 | Plus 4 | Bill Dredge | Bill Dredge | 27th |
| 1.6.1958 | Santa Barbara [Ladies] | 145 | Plus 4 Super Sports | Barbara Windhorst | Rene Pelladini | DNA |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 145 | Plus 4 Super Sports | Lew Spencer | Rene Pellandini | DNF |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 146 | Plus 4 | Roger Slowi | Roger Slowi | DNF |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 187 | Plus 4 | W. T. Bosworth | | DNF |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 245 | Plus 4 | Alvin Gebhard | Rene Pellandini | DNF |
| 7.6.1958 | Put-In-Bay [FM+EP] | 12 | | | | raced |
| 7.6.1958 | Put-In-Bay [FM+EP] | 34 | | Gordon Harrison | | DNA |
| 7.6.1958 | LCCC Oulton Park [Handicap B] | 79 | Plus 4 | Mayman / Mayman | Kay Garages Ltd. | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.0 EX] | 79 | Plus 4 | Mayman / Mayman | Kay Garages Ltd. | DNA |
| 7.6.1958 | LCCC Oulton Park [S2.7/S+2.7] | 79 | Plus 4 | Mayman / Mayman | Kay Garages Ltd. | DNA |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 37 | Plus 4 | Charles Kelsey | | DNA |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 7 | Plus 4 | Charles Kelsey | | 5th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 27 | Plus 4 | Roy Jackson-Moore | | 19th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 47 | Plus 4 | Cliff Wright | | 26th |
| 15.6.1958 | Preliminary Laguna Seca [Production II] | 145 | Plus 4 | Lew Spencer | | 2nd |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 145 | Plus 4 | Lew Spencer | | 14th |
| 15.6.1958 | Prix de Paris [GT3.5+S1.0] | | | Savoye | | 10th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 11 | Plus 4 | James Forno | | 17th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 34 | Plus 4 | Charles Kelsey | Charles Kelsey, Jr. | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 76 | Plus 4 | W. T. Bosworth | W. T. Bosworth, Jr. | 14th |
| 29.6.1958 | St. Eugene [S+1.6] | | Plus 4 | Bob Roncatelli | | ?th |
| 5.7.1958 | SCCA National Lime Rock [EP] | 7 | Plus 4 | Charles Kelsey | | 4th |
| 5.7.1958 | SCCA National Lime Rock [EP] | 41 | | Dave Ruggles | | 8th |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 47 | Plus 4 | Cliff Wright | Cliff Wright | DNA |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 183 | | Bob Kimball | Robert Kimball | DNA |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 184 | | Bob Tara | Robert Tara | DNA |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 195 | | William Henshaw | William Henshaw | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 47 | Plus 4 | Cliff Wright | Cliff Wright | DNA |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 184 | | Grace Tara | Robert Tara | DNA |
| 12.7.1958 | Preliminary Traverse City [Ladies] | | | Patricia Gaunt | | 3rd |
| 13.7.1958 | Traverse City [DP+EP+Veloce] | | | Harry Gaunt | Gaunt | 3rd |
| 19.7.1958 | Berwick [DP+EP] | 111 | Plus 4 | H. B. Williamson | | 2nd |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 56 | Plus 4 | K. R. James | K. R. James | 7th |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 183 | Plus 4 | Bob Kimball | Robert Kimball | 10th |
| 4.8.1958 | Autosport Mallory Park [PS+1.0] | 26 | Plus 4 | Lionel Mayman | Kay Garages | DNA |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 26 | Plus 4 | Pauline Mayman | Kay Garages | 6th |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 26 | Plus 4 | Pauline Mayman | Kay Garages | DNA |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 44 | Plus 4 | W. T. Bosworth | | 7th |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 103 | | Dave Ruggles | | 12th |
| 23.8.1958 | BARC Goodwood [Handicap E] | | Plus 4 | Chris Lawrence | | 2nd |
| 30.8.1958 | Preliminary Santa Barbara [Ladies] | | Plus 4 | Barbara Windhorst | Rene Pellandini | DNF |
| 30.8.1958 | Preliminary Santa Barbara [EP] | | Plus 4 | Lew Spencer | Rene Pellandini | 4th |