| 8.6.1958 | Preliminary Lawrenceville [FP+GP+HM] | 0 | | Chuck Rickert | | 1st |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 0 | | Chuck Rickert | | 1st |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 9 | | Ed Walsh | | 3rd |
| 8.6.1958 | Preliminary Lawrenceville [FP+GP+HM] | 9 | | Ed Walsh | | 2nd |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 66 | | Ed Hoyos | | 1st |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 67 | | John Willock | | DNA |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 68 | | Bill Erhart | | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 70 | | George Drolsom | | ?th |
| 8.6.1958 | Preliminary Lawrenceville [FP+GP+HM] | 70 | | George Drolsom | | ?th |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 73 | | Arthur Hann | | 6th |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 110 | | Bill Welsh | | 3rd |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 111 | | Bill Romig | | DNA |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 126 | | Buel Kinne | | DNA |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 149 | | Harry Blanchard | | DNA |
| 8.6.1958 | SCCA Regional Lawrenceville [FP+GP+HM] | 444 | | Dean Causey | | 2nd |
| 8.6.1958 | Preliminary Lawrenceville [FP+GP+HM] | 444 | | Dean Causey | | 3rd |
| 8.6.1958 | SCCA Regional Thompson [EP+FP] | 555 | | Jef Stevens | | DNA |
| 14.6.1958 | Preliminary Lime Rock [GT] | 44 | | Dan McNally | | 10th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 9 | | Tracy Bird | | 16th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 10 | | Richard Bellows | | 2nd |
| 15.6.1958 | SCCA National Lime Rock [FP] | 13 | | M. A. Cappiello | | DNF |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 14 | | D. D. Michelmore | | 9th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 18 | | Art Snyder | | 10th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 20 | | Don Dickey | | 1st |
| 15.6.1958 | Preliminary Laguna Seca [Production III] | 20 | | Don Dickey | | 4th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 24 | | Buel Kinne | | 4th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 33 | | Emil Pupulidy | | 1st |
| 15.6.1958 | SCCA National Lime Rock [FP] | 43 | | Asher Chapman | | 12th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 44 | | Dan McNally | | 5th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 57 | | Charles Adams | | 14th |
| 15.6.1958 | SCCA National Lime Rock [FP] | 66 | | Ed Hoyos | | 2nd |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 73 | | Dan Herman | | 8th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 92 | | Jimmy Castle | | 20th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 94 | | John Barneson | | 5th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 96 | | Robert Peck | | 24th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 107 | | Charles Kuhn | | 22nd |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 115 | | Ed Hodges | | 23rd |
| 15.6.1958 | Preliminary Laguna Seca [Production II] | 116 | | Bob Herda | | 5th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 116 | | Bob Herda | | 12th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 134 | | William Slater | | 18th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 170 | | Ed Vincent | | 3rd |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 172 | | Jimmy Moore | | 6th |
| 15.6.1958 | SCCA Regional Laguna Seca [FP+GP] | 180 | | Carl Meyer | | 4th |
| 15.6.1958 | Preliminary Laguna Seca [HM+Production I] | | | Peter Talbot | | 1st |
| 21.6.1958 | ADMC Crimond [Production Handicap] | 2 | | Ian Scott Watson | Border Reivers | raced |
| 21.6.1958 | ADMC Crimond [Fastest Handicap] | 2 | | Ian Scott Watson | Border Reivers | 1st |
| 21.6.1958 | ADMC Crimond [S2.7] | 2 | | Jim Clark | Border Reivers | 4th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 0 | | Chuck Rickert | Chuck Rickert | 1st |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 4 | | Dean Causey | Dean Causey | 3rd |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 7 | | Robert Schoening | Robert Schoening | 27th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 9 | | Ed Walsh | Ed Walsh | 9th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 15 | | George Drolsom | George Drolsom | 12th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 19 | | Phil Liautaud | Phil Liautaud | 32nd |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 22 | | George LaCross | Clifford Phillips | 5th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 23 | | Carl Schmidt | Carl G. Schmidt | 17th |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 43 | | Don Wester | Don P. Wester | 2nd |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 77 | | Bob Staples | Bob Staples | DNA |
| 22.6.1958 | SCCA National Road America [FP+GP+HP+HM] | 84 | | Clyde Bourgeois | Clyde Bourgeois | 21st |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 17 | | Donald Baker | Donald Baker | DNF |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 19 | | Joseph Gibbons | Joseph M. Gibbons | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 28 | | H. A. Wilbur | H. A. Wilbur | 23rd |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 30 | | J. Albert Schaefer | J. Albert Schaefer | 20th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 44 | | Glenn Lazar | Glen Lazar | 12th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 48 | | Bernard Groh | Dr. Bernard Groh | 11th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 49 | | Harry Blanchard | Harry Blanchard | 1st |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 66 | | Dick Steltz | Dick Steltz | 15th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 70 | | George Frey | | 4th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 71 | | Bill Strand | William R. Strand | 18th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 85 | | Don Wolf | Donald E. Wolf | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 90 | | Bruce Jennings | Bruce R. Jennings | DNF |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 94 | | Antonio Valdes-Dapena | A. Valdes-Dapena | 10th |
| 28.6.1958 | Preliminary Riverside [FP+GP+Modified 1.0] | 18 | | D. D. Michelmore | | 3rd |
| 28.6.1958 | Preliminary Riverside [FP+GP+Modified 1.0] | 72 | | Jimmy Moore | | 2nd |
| 28.6.1958 | Preliminary Riverside [FP+GP+Modified 1.0] | 200 | | Don Dickey | | 1st |
| 29.6.1958 | Riverside [FP+GP] | 7 | | Art Snyder | | 4th |
| 29.6.1958 | Riverside [FP+GP] | 18 | | D. D. Michelmore | | 3rd |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 31 | | Ronnie Bucknum | | 13th |
| 29.6.1958 | WJC Charterhall [S+1.5] | 39 | | Ian Scott Watson | Border Reivers | DNA |
| 29.6.1958 | WJC Charterhall [S3.0] | 39 | | Jim Clark | Border Reivers | DNA |
| 29.6.1958 | Riverside [FP+GP] | 72 | | Jimmy Moore | | 2nd |
| 29.6.1958 | Riverside [FP+GP] | 200 | | Don Dickey | | 1st |
| 29.6.1958 | St. Eugene [S1.6] | | | Brock Farrow | | 4th |
| 29.6.1958 | St. Eugene [S1.6] | | | Jim Muzzin | | 3rd |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 57 | | Charles Adams | Charles Adams | DNA |
| 5.7.1958 | LASC Green Acres [Century Class] | 58 | | Ralph Luciw | Farrow Motors | DNA |
| 5.7.1958 | LASC Green Acres [S2.7] | 58 | | Ralph Luciw | Farrow Motors | DNA |
| 5.7.1958 | LASC Green Acres [S1.5] | 58 | | Ralph Luciw | Farrow Motors | 6th |
| 5.7.1958 | LASC Green Acres [S1.5] | 58 | | Ralph Luciw | Farrow Motors | 3rd |
| 5.7.1958 | LASC Green Acres [S2.7] | 80 | | Albert Close | Albert R. Close | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 92 | | Jimmy Castle | Jim Castle | DNA |
| 5.7.1958 | Preliminary Vaca Valley [Alfa+MGA+356] | 94 | | Roger Mace | Mace-Newland | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 102 | | Jack Woodard | Jack Woodward | DNA |
| 5.7.1958 | Preliminary Vaca Valley [Alfa+MGA+356] | 107 | | Charles Kuhn | Charles Kuhn | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 116 | | Bob Herda | Bob Herda | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 125 | | William Slater | William Slater | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 127 | | Leon Robertson | Leon Robertson | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 136 | | Emil Pardee | Emil Pardee | DNA |
| 5.7.1958 | Preliminary Vaca Valley [Alfa+MGA+356] | 155 | | Peter Talbot | Peter Talbot | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 163 | | Al Whatley | Alfred Whatley | DNA |
| 5.7.1958 | Novice Hammond [S+1.6] | | | W. Phillips | | 3rd |