| 1.6.1958 | SCCA Regional Dunkirk [CM+DM+EM+CP] | 12 | | Bob Johnson | | 6th |
| 1.6.1958 | SCCA Regional Dunkirk [CM+DM+EM+CP] | 30 | | Ed Leavens | | 3rd |
| 1.6.1958 | GP Dunkirk | 30 | | Ed Leavens | | 2nd |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 37 | | Andy Porterfield | Frederick Grant | DNA |
| 1.6.1958 | SCCA Regional Dunkirk [CM+DM+EM+CP] | 46 | | Kenneth Herbst | | 10th |
| 1.6.1958 | Santa Barbara [Ladies] | 90 | | Shelby Hunsinger | Bert Ruttman | ?th |
| 1.6.1958 | SCCA Regional Dunkirk [Ladies] | 112 | | Laura Dasey | | 2nd |
| 1.6.1958 | GP Dunkirk | 188 | | Don Yenko | | 5th |
| 1.6.1958 | SCCA Regional Dunkirk [CM+DM+EM+CP] | 188 | | Don Yenko | | 5th |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 221 | | Steve Brent | Steve Brent | 18th |
| 1.6.1958 | Santa Barbara [Ladies] | 231 | | Ginny Sims | Lee Snodgrass | DNA |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 283 | | Andy Porterfield | Andy Porterfield | 2nd |
| 1.6.1958 | Santa Barbara [BP+CP+DP] | 290 | | Jerry McGee | Jerry McGee | 13th |
| 7.6.1958 | Preliminary Eagle Mountain [Novice] | | | Bill Moore | | 1st |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 16 | #E57S104007 | Bill Howe | | 2nd |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 16 | #E57S104007 | Bill Howe | | 5th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 22 | #E57S105541 | Jack Knab | | 2nd |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 22 | #E57S105541 | Jack Knab | | 3rd |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 31 | | Tom Kerr | | 6th |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 39 | | Dick Jalbert | | 4th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 71 | | John W. Baxter | | 3rd |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 71 | | John W. Baxter | | 4th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 73 | | Hixon | | 5th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 81 | | Bill Straney | | 6th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 171 | | Gerry Mason | | 4th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 171 | | Gerry Mason | | 6th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 333 | | Bob Spooner | | 1st |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 333 | | Bob Spooner | | 1st |
| 8.6.1958 | SCCA Regional Eagle Mountain [BP+CP+Ace+GM] | | | Jack Martin | | 1st |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 9] | | | Jack Martin | | 1st |
| 15.6.1958 | SCCA National Lime Rock [BP+CP] | 15 | | Jim Jeffords | | DNF |
| 15.6.1958 | SCCA National Lime Rock [BP+CP] | 31 | | Tom Kerr | | 9th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 34 | #E57S103806 | Cloyd Gray | | 25th |
| 15.6.1958 | Preliminary Laguna Seca [Production III] | 34 | #E57S103806 | Cloyd Gray | | 3rd |
| 15.6.1958 | SCCA National Lime Rock [BP+CP] | 99 | | Fred Windridge | | 1st |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 191 | | Bob Devlin | | 13th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 2 | | Dick Doane | Richard Doane | 13th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 4 | | Dean Rollins | Dr. Dean Rollins | 17th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 14 | | Jim Jeffords | L. Lindheimer | 4th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 19 | | Geo. W. Spurlin | Geo. W. Spurlin | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 29 | | Bill Larson | Dr. Wm. Larson | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 33 | | Bob Spooner | Bob Spooner | 6th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 41 | | Jerome Earl | Jerome C. Earl | 16th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 58 | #E57S105541 | Jack Knab | Jack Evans Knab | 12th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 76 | #E57S104007 | Bill Howe | L. W. Howe | DNA |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 99 | | Robert Gatz | Robt. E. Gatz | 15th |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 18 | | Ben Moore | | 1st |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 77 | | Ed Myers | | 2nd |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 84 | | W. P. Dalton | | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 121 | | Homer Dasey | | 4th |
| 27.6.1958 | SCCA Regional Watkins Glen [BP+CP] | 666 | | Frank DeSarno | | DNF |
| 28.6.1958 | Preliminary Riverside [BP+CP+DP+EP] | 36 | | Tony Settember | | 2nd |
| 28.6.1958 | Preliminary Riverside [BP+CP+DP+EP] | 183 | | Andy Porterfield | | 3rd |
| 28.6.1958 | Preliminary Riverside [Ladies] | | | Barbara Burhop | | ?th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 30 | | Bill Gaskins | | 9th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 35 | | John Burbridge | | 12th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 36 | | Tony Settember | | 3rd |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 37 | | Fred Grant | | 8th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 41 | | Scott Briley | | DNF |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 86 | #J58S102277 | Trenor Peter Stanley | | DNF |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 132 | | Bob Hoffman | | 7th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 166 | | Bob Dickson | | 4th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 183 | | Andy Porterfield | | 2nd |
| 4.7.1958 | Orange County [Novice] | | | A. G. Edinger | | 3rd |
| 4.7.1958 | Orange County [Novice] | | | Rich Shipley | | 1st |
| 4.7.1958 | Orange County [Production +1.6] | | | Jack Bates | | 1st |
| 4.7.1958 | Orange County [Ladies] | | | H. C. Hoppe | | 1st |
| 4.7.1958 | Orange County [Production +1.6] | | | Bob Ray | | 3rd |
| 4.7.1958 | Orange County [S+1.5] | | | Jack Bates | | 3rd |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 6 | | Geoff Stevens | | 8th |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 7 | | Hugh Harm | Hugh Harm | DNA |
| 5.7.1958 | LASC Green Acres [S+2.6] | 7 | | L. D. Morrisett | L. D. Morrisett | 2nd |
| 5.7.1958 | LASC Green Acres [Trophy] | 7 | | L. D. Morrisett | L. D. Morrisett | 2nd |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 14 | | Jim Jeffords | | DNF |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 23 | | Dean McCarthy | | 7th |
| 5.7.1958 | LASC Green Acres [Formula Libre] | 30 | | Ed Leavens | A. D. Gorrie & Co. | DNA |
| 5.7.1958 | LASC Green Acres [S+2.6] | 30 | | Ed Leavens | A. D. Gorrie & Co. | 3rd |
| 5.7.1958 | LASC Green Acres [S+2.6] | 39 | | Arthur Subberra | Arthur Subberra | 9th |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 65 | | Joseph Giroux | J. L. Giroux | DNA |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 69 | #E57S104250 | Frank Dominianni | | 4th |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 79 | | Roger Penske | | 5th |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 88 | | Bob Kingham | | 9th |
| 5.7.1958 | Novice Vaca Valley [Modified] | 90 | | John De Mira | John De Mira | DNA |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 90 | | John De Maria | John De Maria | DNA |
| 5.7.1958 | LASC Green Acres [Trophy] | 90 | | Ed Leavens | | 1st |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 95 | | Sandy Greenblat | Sandy Greenblat | DNA |
| 5.7.1958 | SCCA National Lime Rock [BP+CP] | 99 | | Fred Windridge | | 1st |
| 5.7.1958 | Novice Vaca Valley [Production +1.6] | 202 | | Jerry Vercelli | Gerald Vercelli | DNA |
| 5.7.1958 | Novice Hammond [S+1.6] | | | Bill McCorkle | | 1st |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 26 | | Fred Grant | Fred Grant | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 34 | #E57S103806 | Cloyd Gray | Cloyd Gray | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 34 | #E57S103806 | Cloyd Gray | Cloyd Gray | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 73 | | Bill Sturgis | J. L. Giroux | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 76 | | Bob Bent | Bob Bent | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 76 | | Bob Bent | Bob Bent | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 83 | | Robert Nix | Robert Nix | DNA |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 168 | | Ray Altman | Ray Altman | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 168 | | Ray Altman | Ray Altman | DNA |
| 6.7.1958 | Hammond [BP+CP+FM+GM] | | | Bill Fuller | | 2nd |
| 6.7.1958 | Hammond [BP+CP+FM+GM] | | | Bill McCorkle | | 3rd |