| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 47 | | Cliff Wright | | 26th |
| 15.6.1958 | Preliminary Laguna Seca [Production II] | 145 | | Lew Spencer | | 2nd |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 11 | | James Forno | | 17th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 34 | | Charles Kelsey | Charles Kelsey, Jr. | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 76 | | W. T. Bosworth | W. T. Bosworth, Jr. | 14th |
| 29.6.1958 | St. Eugene [S+1.6] | | | Bob Roncatelli | | ?th |
| 5.7.1958 | SCCA National Lime Rock [EP] | 7 | | Charles Kelsey | | 4th |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 47 | | Cliff Wright | Cliff Wright | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 47 | | Cliff Wright | Cliff Wright | DNA |
| 19.7.1958 | Berwick [DP+EP] | 111 | | H. B. Williamson | | 2nd |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 56 | | K. R. James | K. R. James | 7th |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 183 | | Bob Kimball | Robert Kimball | 10th |
| 4.8.1958 | Autosport Mallory Park [PS+1.0] | 26 | | Lionel Mayman | Kay Garages | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 26 | | Pauline Mayman | Kay Garages | DNA |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 26 | | Pauline Mayman | Kay Garages | 6th |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 44 | | W. T. Bosworth | | 7th |
| 23.8.1958 | BARC Goodwood [Handicap E] | | | Chris Lawrence | | 2nd |
| 30.8.1958 | Preliminary Santa Barbara [Ladies] | | | Ruth Doushkess | | ?th |
| 30.8.1958 | Preliminary Santa Barbara [EP] | | | Lew Spencer | Rene Pellandini | 4th |
| 30.8.1958 | Preliminary Santa Barbara [Ladies] | | | Barbara Windhorst | Rene Pellandini | DNF |
| 31.8.1958 | Santa Barbara [EP] | 13 | | Alvin Gebhard | | 3rd |
| 31.8.1958 | Santa Barbara [EP] | 141 | | Roger Slowi | | 7th |
| 6.9.1958 | Sunbac Silverstone [Production] | | | Adrian Belcher | | 3rd |
| 6.9.1958 | Sunbac Silverstone [Hadicap 3] | | | Adrian Belcher | | 2nd |
| 14.9.1958 | SCCA Regional Meadowdale [CP+DP+EP] | 87 | | W. T. Bosworth | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 411 | | James Forno | | 18th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 411 | | James Forno | | 15th |
| 20.9.1958 | Oulton Park International [S+1.1] | 55 | | Adrian Belcher | A. G. W. Belcher | ?th |
| 20.9.1958 | Oulton Park International [S+1.1] | 62 | | Chris Lawrence | Chris Lawrence | DNA |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 111 | | H. B. Williamson | H. B. Williamson | 17th |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 168 | | James Forno | | 13th |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 191 | | E. H. Clapham | E. H. Clapham | 19th |
| 28.9.1958 | ICNSCC Ellensburg [AP+BP+CP+DP+EP] | 4 | | G. B. Sterne | | DNF |
| 28.9.1958 | Hourglass Field [Ladies+FIII] | | | Barbara Windhorst | | ?th |
| 5.10.1958 | SCCA Regional Thompson [DP+EP] | 4 | | Charles Kelsey | | 2nd |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 87 | | Chris Lawrence | Chris Lawrence | DNA |
| 5.10.1958 | SCCA National Vaca Valley [EP+FP] | 144 | | Jack West | | DNF |
| 5.10.1958 | SCCA National Vaca Valley [EP+FP] | 183 | | Bob Kimball | | 11th |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 17 | | Roger Dobson | C. A. Pashley | DNA |
| 11.10.1958 | LCCC Oulton Park [S2.0 EX] | 70 | | Adrian Belcher | Bill Belcher | DNA |
| 12.10.1958 | SCCA Regional Wilmot [EP] | 87 | | W. T. Bosworth | | 2nd |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 145 | | Lew Spencer | Rene Pallandini | 15th |
| 19.10.1958 | SCCA Regional Lime Rock [EP] | 27 | | Charles Kelsey | | 12th |
| 9.11.1958 | SCCA Regional Laguna Seca [EP] | 0 | | Rick Hilgers | | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [EP] | 13 | | Alvin Gebhard | Alvin Gebhard | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [EP] | 98 | | Ed Leslie | Ed Leslie | raced |
| 9.11.1958 | SCCA Regional Laguna Seca [Ladies] | 108 | | Barbara Windhorst | Rene Pellandini | DNA |
| 9.11.1958 | SCCA Regional Laguna Seca [EP] | 145 | | Lew Spencer | Rene Pellandini | 2nd |
| 9.11.1958 | SCCA Regional Laguna Seca [EP] | | | Chuck Lowry | Chuck Lowry | DNA |
| 22.11.1958 | 6 h Pomona | | | Spencer / Windhorst | | DNF |
| 23.11.1958 | Pomona [BP+CP+DP+EP] | | | Slowi | | 14th |
| 23.11.1958 | Pomona [BP+CP+DP+EP] | | | Spencer | | 8th |
| 23.11.1958 | Pomona [Ladies+Sedan] | | | Barbara Windhorst | | 2nd |
| 30.11.1958 | Phoenix [Production] | | | Lew Spencer | | 6th |
| 30.11.1958 | Phoenix [Ladies] | | | Barbara Windhorst | | 5th |