| 12.10.1958 | SCCA Regional Wilmot [FP] | 7 | 356 | John Peterson | | 6th |
| 12.10.1958 | Consolation Wilmot [EP+FP+HM] | 7 | 356 | John Peterson | | 6th |
| 12.10.1958 | USAC Riverside | 7 | 718 RSK | Jean Behra | Porsche AG | 4th |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 19 | 356 | Thomas Steinbock | | 3rd |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 19 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | D. D. Michelmore | DNA |
| 12.10.1958 | SCCA Regional Wilmot [BM+CM+DM+EM+FM+GM] | 21 | Special | William Cooper | | 2nd |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 21 | 356 Super | Bill von Kluck | Bill von Kluck | 19th |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 22 | 356 | Cliff Phillips | | 1st |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 24 | 356 Super Speedster | Ed Barker | Ed Barker | 16th |
| 12.10.1958 | SCCA Regional Wilmot [BM+CM+DM+EM+FM+GM] | 26 | 550 Spyder | George van de Sande | | 5th |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 27 | 356 | Ernie Erickson | | 2nd |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 30 | 356 A Carrera GT | Art Snyder | Art Snyder | 14th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 31 | 356 1600 Super Speedster | Ronnie Bucknum | Ronnie Bucknum | 12th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 39 | 356 | Thompson / Snider | Jerry Thompson | DNA |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 47 | 356 A Carrera | William Jordan | | 4th |
| 12.10.1958 | Consolation Wilmot [EP+FP+HM] | 47 | 356 A Carrera | William Jordan | | 1st |
| 12.10.1958 | USAC Riverside | 50 | 550 RS | Ken Miles | Precision Motor Cars | 9th |
| 12.10.1958 | SCCA Regional Wilmot [FP] | 71 | 356 | Mike McCann | | 7th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 72 | 356 A 1500 GS Carrera GT Speedster | Jimmy Moore | Jimmy Moore | DNF |
| 12.10.1958 | USAC Riverside | 118 | 356 A 1500 GS Carrera GT Coupé | Jean Pierre Kunstle | Jean-Pierre Kunstle | 20th |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 118 | 356 A 1500 GS Carrera GT Coupé | Jean Pierre Kunstle | Jean-Pierre Kunstle | DNA |
| 12.10.1958 | Riverside [BP+CP+DP+EP+FP] | 120 | 356 A Carrera GT | Don Dickey | Don Dickey | 6th |
| 12.10.1958 | USAC Riverside | 124 | 550 RS Special | George Keck | Team Empire | 19th |
| 18.10.1958 | SCCA Regional Lime Rock [FM+GM] | 33 | 550 RS | Newton Davis | | 2nd |
| 18.10.1958 | Preliminary Lime Rock [GT] | | 356 A | | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 17 | 356 A Carrera GT Speedster | Bill Chadbourne | | 2nd |
| 19.10.1958 | SCCA Regional Lime Rock [Main] | 33 | 550 RS | Newton Davis | | DNF |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 42 | 356 A | Donald Mark | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 49 | 356 A Carrera GT Speedster | Harry Blanchard | | 1st |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 50 | 356 A 1500 Super Coupé | Steve Wilder | | 3rd |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 57 | 356 | Dunn | | 4th |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 115 | 356 A 1600 Super | Victor Czito | | 7th |
| 19.10.1958 | SCCA Regional Shelton | 124 | 550 RS Special | George Keck | | 1st |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 130 | 356 A | John Nibert | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 142 | 356 A 1600 Super | John Keeney | | raced |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 179 | 356 A | Albert Phillips | | 9th |
| 19.10.1958 | SCCA Regional Lime Rock [FP] | 777 | 356 A 1600 | Ben Loquasto | | 8th |
| 25.10.1958 | Preliminary Dothan [Modified+AP+BP+CP+DP+EP] | 22 | 550 RS | Joe Sheppard | Joe Shepherd | raced |
| 25.10.1958 | Preliminary Dothan [Modified+AP+BP+CP+DP+EP] | 27 | 550 RS | Roy Schecter | Roy Schechter | 3rd |
| 25.10.1958 | Preliminary Minden [Porsche] | 177 | 356 A Carrera | Dan Herman | | ?th |
| 25.10.1958 | Preliminary Minden [Porsche] | | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | | 2nd |
| 25.10.1958 | Preliminary Minden [Porsche] | | 356 A Carrera GT | Art Snyder | | 3rd |
| 25.10.1958 | Preliminary Minden [FM+GM+HM] | | 550 | Jack West | | 2nd |
| 25.10.1958 | Preliminary Minden [FM+GM+HM] | | 550 | Erv Lehr | | 1st |
| 25.10.1958 | Preliminary Minden [Porsche] | | 356 | Bob Greenland | | ?th |
| 25.10.1958 | Preliminary Minden [Porsche] | | 356 A Carrera GT | Don Dickey | | 1st |
| 26.10.1958 | SCCA Regional Dothan [Main] | 1 | 356 A Carrera GT | Jean Speidel | Jean Speidel | 7th |
| 26.10.1958 | Preliminary Dothan [Ladies] | 1 | 356 A Carrera GT | Jean Speidel | Jean Speidel | 1st |
| 26.10.1958 | Minden [S1.5] | 2 | 550 | Erv Lehr | | 1st |
| 26.10.1958 | SCCA Regional Dothan [Main] | 3 | | Hunter Watkins | Hunter Watkins | DNA |
| 26.10.1958 | SCCA Regional Dothan [Main] | 4 | 550 | Jim Harbour | Jim Harbour | DNA |
| 26.10.1958 | SCCA Regional Dothan [Main] | 7 | 356 | Franco Ferreira | Franco Ferreira | DNA |
| 26.10.1958 | SCCA Regional Dothan [Main] | 13 | | Jack Sheppard | Jack Shepherd | DNA |
| 26.10.1958 | Minden [BP+CP+DP] | 15 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | | 5th |
| 26.10.1958 | Minden [S1.5] | 20 | 356 A Carrera GT | Don Dickey | | 5th |
| 26.10.1958 | Minden [BP+CP+DP] | 20 | 356 A Carrera GT | Don Dickey | | 3rd |
| 26.10.1958 | SCCA Regional Dothan [Main] | 22 | 550 RS | Joe Sheppard | Joe Shepherd | 2nd |
| 26.10.1958 | SCCA Regional Dothan [Main] | 27 | 550 RS | Roy Schecter | Roy Schechter | 3rd |
| 26.10.1958 | Minden [S1.5] | 31 | 356 Speedster | Ronnie Bucknum | | DNF |
| 26.10.1958 | Minden [EP+FP+GP+HP] | 31 | 356 Speedster | Ronnie Bucknum | | 2nd |
| 26.10.1958 | Minden [BP+CP+DP] | 43 | 356 A Carrera GT | Al Whatley | | 8th |
| 26.10.1958 | Minden [S1.5] | 43 | 356 A Carrera GT | Al Whatley | | DNF |
| 26.10.1958 | SCCA Regional Dothan [Main] | 49 | Special | John Bryan, Jr. | John Bryan, Jr. | DNA |
| 26.10.1958 | Preliminary Dothan [Ladies] | 49 | Special | Jayne Ruskin | John Bryan, Jr. | DNF |
| 26.10.1958 | Minden [S1.5] | 57 | 356 Speedster | Pierre Dumenil | | 8th |
| 26.10.1958 | SCCA Regional Dothan [Main] | 83 | 356 A Carrera GT | John Cuevas | John Cuevas | 4th |
| 26.10.1958 | SCCA Regional Dothan [Main] | 84 | | Bill Warten | Bill Warten | DNA |
| 26.10.1958 | Minden [S1.5] | 127 | 356 | Leon Robertson | | 7th |
| 26.10.1958 | Vineland [Main] | 140 | 550 RS | Bob Holbert | | DNA |
| 26.10.1958 | Minden [BM+CM+DM+EM] | 141 | 550 | Jack West | | 10th |
| 26.10.1958 | Minden [S1.5] | 141 | 550 | Don West | | 4th |
| 26.10.1958 | Minden [EP+FP+GP+HP] | 177 | 356 A Carrera Speedster | Dan Herman | | 1st |
| 26.10.1958 | Minden [S1.5] | 177 | 356 A Carrera | Dan Herman | | 6th |
| 26.10.1958 | Minden [BP+CP+DP] | 180 | 356 A Carrera GT | Carl Meyer | | 10th |
| 26.10.1958 | Minden [S1.5] | 189 | Special Morlang Coupe | William Morlang | | DNF |
| 26.10.1958 | Minden [BP+CP+DP] | 217 | 356 A Carrera GT | Art Snyder | | 9th |
| 26.10.1958 | SCCA Regional Dothan [Main] | | Special | | | raced |
| 26.10.1958 | SCCA Regional Dothan [DP+EP+XK+Veloce] | | 356 | | | ?th |
| 26.10.1958 | SCCA Regional Dothan [Main] | | 356 A Carrera | | | raced |
| 26.10.1958 | Minden [EP+FP+GP+HP] | | 356 A Carrera | Gary Squires | | 3rd |
| 26.10.1958 | Minden [EP+FP+GP+HP] | | 356 Speedster | Bob Greenland | | ?th |
| 26.10.1958 | Minden [Ladies] | | 356 Speedster | Doris Shirley | | 3rd |
| 26.10.1958 | Modena [GT] | | 356 1600 | Brunetto Della Vita | | 8th |
| 26.10.1958 | Vineland [FP+HM] | | 356 A | Horace Ott | | DNF |
| 26.10.1958 | Vineland [FP+HM] | | 356 A Carrera GT | Harry Blanchard | | ?th |
| 26.10.1958 | Vineland [FP] | | 356 | Hans Rhemrev | | ?th |
| 26.10.1958 | SCCA Regional Dothan [DP+EP+XK+Veloce] | | 356 | | | ?th |
| 26.10.1958 | SCCA Regional Dothan [DP+EP+XK+Veloce] | | 356 1600 Super | John Cuevas | | 1st |
| 26.10.1958 | Preliminary Dothan [Ladies] | | 356 1600 Super | Nedra Ware | | 4th |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 5 | 356 Speedster | William Nickel | William H. Nickel | DNA |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 17 | 356 Carrera GT | Pat Keenan | Patrick H. Keenan | DNA |
| 1.11.1958 | Preliminary Palm Springs [Novice+Sedan] | 17 | 356 A Carrera GT | Pat Keenan | Patrick H. Keenan | ?th |
| 1.11.1958 | Preliminary Palm Springs [BP+CP+DP+EP] | 19 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | D. D. Michelmore | ?th |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 23 | 356 Speedster | John Mikell | John Mikell | 3rd |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 34 | 356 Speedster | Hank Montonen | Henry J. Montonen | 2nd |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 40 | 356 Speedster | Robert Kirby | Robert G. Kirby | DNA |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 177 | 356 | Richard Bellows | Richard E. Bellows | 1st |
| 1.11.1958 | Preliminary Palm Springs [Ladies+FIII] | 193 | 550 Spyder | Betty Shutes | Betty J. Shutes | DNA |
| 1.11.1958 | Preliminary Palm Springs [Ladies+FIII] | 196 | 356 Speedster | Sunnie Baker | Sunnie Baker | 2nd |
| 1.11.1958 | Preliminary Palm Springs [FP+GP+HP] | 196 | 356 Speedster | Sunnie Baker | Sunnie Baker | DNA |