| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 19 | 356 | Joseph Gibbons | Joseph M. Gibbons | DNA |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 28 | 356 A | H. A. Wilbur | H. A. Wilbur | 23rd |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 30 | 356 A | J. Albert Schaefer | J. Albert Schaefer | 20th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 44 | 356 A | Glenn Lazar | Glen Lazar | 12th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 48 | 356 A 1600 Super | Bernard Groh | Dr. Bernard Groh | 11th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 49 | 356 A | Harry Blanchard | Harry Blanchard | 1st |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 66 | 356 A | Dick Steltz | Dick Steltz | 15th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 70 | 356 A | George Frey | | 4th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 71 | 356 A | Bill Strand | William R. Strand | 18th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 85 | 356 A | Don Wolf | Donald E. Wolf | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 90 | 356 A Carrera | Bruce Jennings | Bruce R. Jennings | DNF |
| 27.6.1958 | SCCA Regional Watkins Glen [FP+GP+Sedan] | 94 | 356 A | Antonio Valdes-Dapena | A. Valdes-Dapena | 10th |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 129 | 550 | Manfred Holder | | 6th |
| 27.6.1958 | SCCA Regional Watkins Glen [BM+CM+DM+EM+FM+GM] | 333 | 550 | Newton Davis | | 3rd |
| 28.6.1958 | Preliminary Riverside [FP+GP+Modified 1.0] | 18 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | | 3rd |
| 28.6.1958 | Preliminary Riverside [Modified 1.5] | 50 | 550 RS | Ken Miles | | 3rd |
| 28.6.1958 | Preliminary Riverside [FP+GP+Modified 1.0] | 72 | 356 A Carrera GT | Jimmy Moore | | 2nd |
| 28.6.1958 | Preliminary Riverside [Modified 1.5] | 88 | 550 RS | Jack McAfee | | 1st |
| 28.6.1958 | Preliminary Riverside [FP+GP+Modified 1.0] | 200 | 356 A Carrera GT | Don Dickey | | 1st |
| 28.6.1958 | Preliminary Riverside [Ladies] | | 550 Spyder | Betty Shutes | | ?th |
| 28.6.1958 | Preliminary Riverside [Novice] | | 550 | Vaclav Polak | | 2nd |
| 29.6.1958 | Riverside [FP+GP] | 7 | 356 A Carrera GT | Art Snyder | | 4th |
| 29.6.1958 | Riverside [FP+GP] | 18 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | | 3rd |
| 29.6.1958 | Riverside [BP+CP+DP+EP] | 31 | 356 Speedster | Ronnie Bucknum | | 13th |
| 29.6.1958 | WJC Charterhall [S3.0] | 39 | 356 A 1600 Super | Jim Clark | Border Reivers | DNA |
| 29.6.1958 | WJC Charterhall [S+1.5] | 39 | 356 A 1600 Super | Ian Scott Watson | Border Reivers | DNA |
| 29.6.1958 | Riverside [FM+GM+HM] | 40 | 550 | John Davis | | 7th |
| 29.6.1958 | Riverside [FM+GM+HM] | 50 | 550 RS | Ken Miles | | 2nd |
| 29.6.1958 | Riverside [FP+GP] | 72 | 356 A Carrera GT | Jimmy Moore | | 2nd |
| 29.6.1958 | Riverside [FM+GM+HM] | 88 | 550 RS | Jack McAfee | | 1st |
| 29.6.1958 | Riverside [FP+GP] | 200 | 356 A Carrera GT | Don Dickey | | 1st |
| 29.6.1958 | St. Eugene [S1.6] | | 356 1500 | Brock Farrow | | 4th |
| 29.6.1958 | St. Eugene [S1.6] | | 356 Coupé | Jim Muzzin | | 3rd |
| 29.6.1958 | Riverside [Ladies] | | 550 Spyder | Betty Shutes | | ?th |
| 5.7.1958 | SCCA National Lime Rock [FP] | 5 | 356 A | Geoff Stevens | | DNF |
| 5.7.1958 | SCCA National Lime Rock [FP] | 10 | 356 A | Floyd Stone | | 11th |
| 5.7.1958 | SCCA National Lime Rock [FP] | 13 | 356 A Carrera GT | M. A. Cappiello | | 2nd |
| 5.7.1958 | Novice Vaca Valley [Modified] | 15 | 550 | Ray Drake | Rasmussen-Drake | DNA |
| 5.7.1958 | SCCA National Lime Rock [FP] | 24 | 356 A 1600 Super | Buel Kinne | | 6th |
| 5.7.1958 | Novice Vaca Valley [Modified] | 27 | Special | James Belvel | Russell May | DNA |
| 5.7.1958 | LASC Green Acres [Century Class] | 32 | | Francis Binder | Ecurie Sticky Wicket | DNA |
| 5.7.1958 | LASC Green Acres [S1.5] | 32 | | Francis Binder | Ecurie Sticky Wicket | 11th |
| 5.7.1958 | SCCA National Lime Rock [FP] | 33 | 356 A Carrera GT Speedster | Emil Pupulidy | | 1st |
| 5.7.1958 | Novice Vaca Valley [Modified] | 44 | Special | Jim Skilling | Dave Skilling | DNA |
| 5.7.1958 | SCCA National Lime Rock [FP] | 44 | 356 A 1600 | Dan McNally | | 7th |
| 5.7.1958 | 12 h Reims | 46 | 356 A Carrera Coupé | Behra / Rodriguez | | 9th |
| 5.7.1958 | National Open Crystal Palace | 51 | 550 RS | L. Monteiro | L. Monteiro | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 57 | 356 Super | Charles Adams | Charles Adams | DNA |
| 5.7.1958 | LASC Green Acres [Century Class] | 57 | | Brock Farrow | Farrow Motors | DNA |
| 5.7.1958 | LASC Green Acres [S2.7] | 57 | | Brock Farrow | Farrow Motors | DNA |
| 5.7.1958 | LASC Green Acres [S2.7] | 58 | 356 1600 | Ralph Luciw | Farrow Motors | DNA |
| 5.7.1958 | LASC Green Acres [Century Class] | 58 | 356 1600 | Ralph Luciw | Farrow Motors | DNA |
| 5.7.1958 | LASC Green Acres [S1.5] | 58 | 356 1600 | Ralph Luciw | Farrow Motors | 3rd |
| 5.7.1958 | LASC Green Acres [S1.5] | 58 | 356 1600 | Ralph Luciw | Farrow Motors | 6th |
| 5.7.1958 | LASC Green Acres [S1.5] | 60 | | L. M. Wallace | L. M. Wallace | DNA |
| 5.7.1958 | LASC Green Acres [Century Class] | 60 | | L. M. Wallace | L. M. Wallace | DNA |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 63 | 550 RS | Phil Forno | Briggs Cunningham | 9th |
| 5.7.1958 | LASC Green Acres [S1.5] | 70 | | Paul Montgomery | C. Paul Montgomery | 4th |
| 5.7.1958 | LASC Green Acres [S1.5] | 70 | | Paul Montgomery | C. Paul Montgomery | 4th |
| 5.7.1958 | LASC Green Acres [Century Class] | 70 | | Paul Montgomery | C. Paul Montgomery | DNA |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 77 | 550 RS | Vic Meinhardt | | 7th |
| 5.7.1958 | LASC Green Acres [S2.7] | 80 | 356 1600 Super | Albert Close | Albert R. Close | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 92 | 356 Super | Jimmy Castle | Jim Castle | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 94 | 356 Normal | Pamelia Mace | Mace-Newland | DNA |
| 5.7.1958 | Preliminary Vaca Valley [Alfa+MGA+356] | 94 | 356 Normal | Roger Mace | Mace-Newland | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 102 | 356 Super | Jack Woodard | Jack Woodward | DNA |
| 5.7.1958 | Preliminary Vaca Valley [Alfa+MGA+356] | 107 | 356 Normal | Charles Kuhn | Charles Kuhn | DNA |
| 5.7.1958 | SCCA National Lime Rock [FP] | 110 | 356 1500 | Bill Welsh | | DNF |
| 5.7.1958 | SCCA National Lime Rock [FP] | 111 | 356 A Carrera GT | Frank Wagenhofer | | 4th |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 115 | 356 | Ed Hodges | Ed Hodges | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 116 | 356 Super | Bob Herda | Bob Herda | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 116 | 356 | Duncan Reynard | Bob Herda | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 125 | 356 Super | William Slater | William Slater | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 127 | 356 Super | Leon Robertson | Leon Robertson | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 127 | 356 Super | Leon Robertson | Leon Robertson | DNA |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 133 | 550 RS | Newton Davis | | 6th |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 136 | 356 Super | Emil Pardee | Emil Pardee | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 139 | 356 | Tom Hixson | Tom Hixson | DNA |
| 5.7.1958 | SCCA National Lime Rock [CM+DM+EM+FM] | 140 | 550 RS | Bob Holbert | | 5th |
| 5.7.1958 | Novice Vaca Valley [Modified] | 141 | 550 | Don West | Jack West | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 142 | 356 | Roland Shirley | Roland Shirley | DNA |
| 5.7.1958 | Preliminary Vaca Valley [Alfa+MGA+356] | 155 | 356 Normal | Peter Talbot | Peter Talbot | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 156 | 356 | Byron Kimmler | Byron Kimmler | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 163 | 356 | Al Whatley | Alfred Whatley | DNA |
| 5.7.1958 | SCCA National Lime Rock [FP] | 166 | 356 A Carrera GT | Ed Hoyos | | 5th |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 172 | 356 | Forrest Tindall | Forrest Tindall | DNA |
| 5.7.1958 | Novice Vaca Valley [Production 1.6] | 190 | 356 | John Seammon | Arthur Torres | DNA |
| 5.7.1958 | 12 h Reims | | 356 | Blehaut / Souchou | | 15th |
| 5.7.1958 | 12 h Reims | | 356 | Dutoit / Ros | | ?th |
| 5.7.1958 | 12 h Reims | | 356 A 1500 GS Carrera GT Coupé | Storez / von Frankenberg | | 6th |
| 5.7.1958 | Novice Hammond [S+1.6] | | 356 Super Speedster | W. Phillips | | 3rd |
| 5.7.1958 | 12 h Reims | | 356 A Carrera | Norinder / Bonnier | | 12th |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 12 | 550 RS | Eldon Beagle | Eldon Beagle | 2nd |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 15 | 550 | John Stevenson | | 6th |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 27 | Special | Russell May | Russ May | 10th |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 88 | 550 RS | Jack McAfee | Stan Sugarman | 2nd |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 88 | 550 RS | Jack McAfee | Stan Sugarman | 1st |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 141 | 550 | Jack West | Jack West | 9th |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 141 | 550 | Jack West | Jack West | 3rd |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 212 | 550 | Erv Lehr | Ervin Lehr | 4th |