| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 17 | | Jim Fouch | Jim Fouch | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 47 | | Bill Klingensmith | Bill Klingensmith | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 48 | Ace | Gordon Crowder | Gordon Crowder | DNA |
| 31.5.1958 | Novice Dunkirk [EP+FP+GP] | 137 | Ace | Margaret Milo | | 15th |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 195 | Ace | Paul Cote | Paul Cote | DNA |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | 3 | Ace | Jerry Shawver | | 6th |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | 5 | Ace | Harvey Woodward | | 5th |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 17 | | Jim Fouch | Jim Fouch | 24th |
| 1.6.1958 | SCCA National Bridgehampton [BM+CM+DM+EM+FM] | 18 | | Chuck Sarle | | DNF |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 28 | Aceca | R. C. Kyle | | 17th |
| 1.6.1958 | Santa Barbara [Ladies] | 38 | Ace | Linda Scott | Bill Love | 2nd |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 38 | Ace | Bill Love | Bill Love | 1st |
| 1.6.1958 | SCCA Regional La Junta [FM+GM+HM+EP+FP+GP] | 40 | Ace | Hap Sharp | | 4th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 43 | | Joe Daniels | | 12th |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 47 | | Bill Klingensmith | Bill Klingensmith | 4th |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 48 | Ace | Gordon Crowder | Gordon Crowder | 3rd |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 48 | Ace | Evelyn Mull | | 4th |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 80 | Ace | Harry Carter | | 2nd |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 137 | Ace | Richard Milo | | 3rd |
| 1.6.1958 | SCCA Regional Dunkirk [Ladies] | 137 | Ace | Margaret Milo | | 4th |
| 1.6.1958 | GP Dunkirk | 137 | Ace | Richard Milo | | 14th |
| 1.6.1958 | Santa Barbara [EP+FP+JP] | 195 | Ace | Paul Cote | Paul Cote | 29th |
| 1.6.1958 | Santa Barbara [Ladies] | 195 | Ace | Cathy Cote | Paul Cote | DNA |
| 1.6.1958 | GP Dunkirk | 221 | Ace | Arch Means | | 6th |
| 1.6.1958 | SCCA Regional Dunkirk [DP+EP] | 221 | Ace | Arch Means | | 1st |
| 1.6.1958 | SCCA National Bridgehampton [DP+EP] | 246 | Ace | Jordan King | | DNF |
| 2.6.1958 | Roskilde Ring [Production] | | Ace | Mike Anthony | | 2nd |
| 7.6.1958 | Put-In-Bay [FM+EP] | 31 | Ace | | | raced |
| 7.6.1958 | Put-In-Bay [FM+EP] | 72 | Ace | Ed Lawrence | | DNA |
| 7.6.1958 | Preliminary Eagle Mountain [Novice] | | Ace | James Binford | | 3rd |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 18 | Ace | Harry Carter | | DNA |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 30 | | Ed Hamburger | | DNA |
| 8.6.1958 | SCCA Regional Thompson [BP+CP+DP+GM] | 30 | | Ed Hamburger | | 9th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 47 | Ace | Kenneth Carroll | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 57 | Ace | Bob Nolan | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 94 | Ace | Jack Mayberry | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 94 | Ace | Jack Mayberry | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 100 | Ace | Harry Pick | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 100 | Ace | Harry Pick | | ?th |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 246 | Ace | Jordan King | | DNA |
| 8.6.1958 | Preliminary Lawrenceville [BP+CP+DP+EP] | 711 | Ace | Luke Stear | | ?th |
| 8.6.1958 | SCCA Regional Lawrenceville [BP+CP+DP+EP] | 711 | Ace | Luke Stear | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [BP+CP+Ace+GM] | | Ace | Bill Steele | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [race 9] | | Ace | Bill Steele | | 3rd |
| 8.6.1958 | SCCA Regional Eagle Mountain [BP+CP+Ace+GM] | | Ace | Harry Washburn | | ?th |
| 8.6.1958 | SCCA Regional Eagle Mountain [BP+CP+Ace+GM] | | Ace | Bill Fritts | | ?th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 17 | | John Luce | | 7th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 61 | | Earl Grafton | | 17th |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 80 | Ace | Harry Carter | | 1st |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 117 | Ace | Chick Leson | | 12th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 195 | Ace | Paul Cote | | 5th |
| 15.6.1958 | SCCA Regional Laguna Seca [BP+CP+DP+EP] | 238 | Ace | Bill Love | | 2nd |
| 15.6.1958 | Preliminary Laguna Seca [Production III] | 238 | Ace | Bill Love | | 2nd |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 246 | Ace | Jordan King | | 2nd |
| 15.6.1958 | SCCA National Lime Rock [DP+EP] | 777 | | Graham Shaw | | DNF |
| 15.6.1958 | Prix de Paris [GT3.5+S1.0] | | | Chardonnet | | 6th |
| 15.6.1958 | Prix de Paris [GT3.5+S1.0] | | | Blavet | | 5th |
| 21.6.1958 | ADMC Crimond [Production Handicap] | 14 | Aceca | Gray Mickel | R. G. Mickel | DNA |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 5 | Ace | Harvey Woodward | Harvey D. Woodward | 6th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 7 | Ace | Bill Steele | W. E. Steele | 2nd |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 11 | Ace | Robert Roloson | Robert M. Roloson | 7th |
| 22.6.1958 | SCCA National Road America [BM+CM+DM+BP] | 18 | | Chuck Sarle | Charles R. Sarle | DNA |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 21 | Ace | Don Zeek | Don Zeek | 3rd |
| 22.6.1958 | 24 h Le Mans | 27 | Ace | Patthey / Berger | A.C. Cars Ltd. | 9th |
| 22.6.1958 | 24 h Le Mans | 28 | Ace LM | Bolton / Stoop | A.C. Cars Ltd. | 8th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 74 | Ace | Dick Hogue | Richard P. Hogue | 10th |
| 22.6.1958 | SCCA National Road America [CP+DP+EP] | 99 | Ace | Harry Pick | Harry E. Pick | 4th |
| 22.6.1958 | Vallelunga [GT2.6] | | | Charles Vögele | | 5th |
| 26.6.1958 | Preliminary Watkins Glen [Ladies] | 148 | Ace | Evelyn Mull | John B. Mull | 2nd |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 33 | Ace | Ed Hamburger | Edmund Hamburger | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 47 | Ace | John B. Mull | John B. Mull | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 81 | Ace | Arch Means | | 2nd |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 100 | Aceca | R. C. Kyle | R. C. Kyle | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 101 | | Pete Harrison | Pete Harrison | 3rd |
| 27.6.1958 | SCCA Regional Watkins Glen [DP+EP+HM+FIII] | 148 | Ace | Evelyn Mull | John B. Mull | 1st |
| 28.6.1958 | Preliminary Riverside [BP+CP+DP+EP] | 38 | Ace | Bill Love | | ?th |
| 28.6.1958 | Preliminary Riverside [Ladies] | | Ace | Cathy Cote | | ?th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 17 | | Jim Fouch | | 14th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 38 | Ace | Bill Love | | 6th |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 147 | | Bill Klingensmith | | DNF |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 195 | Ace | Paul Cote | | DNF |
| 29.6.1958 | St. Eugene [S+1.6] | | Ace | Don Hogan | | DNA |
| 5.7.1958 | SCCA National Lime Rock [EP] | 1 | | David Zabludoff | | 7th |
| 5.7.1958 | LASC Green Acres [S2.7] | 17 | Ace | Paul Sullivan | P. J. Sullivan | 4th |
| 5.7.1958 | LASC Green Acres [Formula Libre] | 17 | Ace | Paul Sullivan | P. J. Sullivan | DNA |
| 5.7.1958 | SCCA National Lime Rock [EP] | 48 | Ace | Evelyn Mull | | 3rd |
| 5.7.1958 | 12 h Reims | 58 | Ace | Jones / Anthony | | 13th |
| 5.7.1958 | LASC Green Acres [Formula Libre] | 117 | Ace | Peter Eastick | McColl Motors | DNA |
| 5.7.1958 | LASC Green Acres [S2.7] | 117 | Ace | Peter Eastick | McColl Motors | DNA |
| 5.7.1958 | SCCA National Lime Rock [EP] | 180 | Ace | Harry Carter | | 1st |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 193 | Ace | Paul Cote | Paul Cote | DNA |
| 5.7.1958 | SCCA National Lime Rock [EP] | 246 | Ace | Jordan King | | 2nd |
| 5.7.1958 | 12 h Reims | | | Clarke / Sunley | | 14th |
| 5.7.1958 | 12 h Reims | | Ace | Izquierdo / Kemp | | ?th |
| 5.7.1958 | 12 h Reims | | Ace | Whiteaway / Jennings | | ?th |
| 6.7.1958 | BMRC Charterhall [BMRC Trophy Handicap] | 5 | Aceca | Gray Mickel | R. G. Mickel | raced |
| 6.7.1958 | Preliminary Vaca Valley [300SL+Jag+Bristol+Corv+Carrera+AHS] | 104 | | Earl Grafton | Earl Grafton | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 104 | | Earl Grafton | Earl Grafton | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 193 | Ace | Paul Cote | Paul Cote | 13th |
| 6.7.1958 | Hammond [Main] | | Ace | Harry Washburn | | 7th |