| 31.8.1958 | Santa Barbara [EP] | 26 | 356 A Carrera | Peter Papke | | 6th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 29 | 550 RS Spyder | Joe Playan | | 5th |
| 31.8.1958 | Santa Barbara [EP] | 31 | 356 1600 Super Speedster | Ronnie Bucknum | | 2nd |
| 31.8.1958 | Santa Barbara [Ladies] | 50 | 550 RS | Linda Scott | | 2nd |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 50 | 550 RS | Ken Miles | | 1st |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 88 | 550 RS | Jack McAfee | | 2nd |
| 31.8.1958 | Santa Barbara [FP] | 124 | 356 Speedster | Gerald Thompson | | 7th |
| 31.8.1958 | Santa Barbara [EP] | 177 | 356 A Carrera | Richard Bellows | | 1st |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 188 | 550 RS | Stan Sugarman | | 11th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 189 | Special Morlang Coupe | William Morlang | | 23rd |
| 31.8.1958 | Santa Barbara [BP+CP+DP] | 200 | 356 A Carrera GT | Don Dickey | | 5th |
| 31.8.1958 | Santa Barbara [EM+FM+GM+HM] | 215 | 550 | John Stevenson | | 9th |
| 31.8.1958 | Santa Barbara [EP] | 234 | 356 1600 Super | Hank Montonen | | 9th |
| 31.8.1958 | Deer Park [CM+DM+EM] | | | John Sparrow | | ?th |
| 31.8.1958 | Deer Park [FP+GP+HP+IP] | | 356 | John Sparrow | | 2nd |
| 31.8.1958 | Santa Barbara [Ladies] | | 550 Spyder | Betty Shutes | | 3rd |
| 31.8.1958 | Santa Barbara [FP] | | 356 1500 Super Speedster | Ed Barker | | DQ |
| 31.8.1958 | Courtland Trophy | | 550 RS | Roy Schecter | | DNA |
| 31.8.1958 | Courtland Trophy | | 356 A Carrera | John Cuevas | | 4th |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 0 | 356 A Carrera GT | Morrow Decker | | 7th |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 10 | 356 1500 | Floyd Stone | | 9th |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 23 | 356 A 1600 | Joe Trotter | | 10th |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 24 | 356 A 1600 | Buel Kinne | | 8th |
| 1.9.1958 | SCCA National Thompson [BM+CM+DM+EM+FM] | 62 | 550 RS | Phil Forno | Briggs S. Cunningham | 5th |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 94 | 356 A Carrera GT | Harry Blanchard | | 1st |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 110 | 356 A 1600 Super | Bill Welsh | | DNF |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 137 | 356 A Carrera GT | Richard Lerner | | DNF |
| 1.9.1958 | SCCA National Thompson [BM+CM+DM+EM+FM] | 140 | 550 RS | Bob Holbert | | 4th |
| 1.9.1958 | SCCA National Thompson [EP+FP] | 211 | 356 A Carrera GT | Frank Wagenhofer | | 3rd |
| 1.9.1958 | St. Eugene [S1.6] | | 356 Coupé | Jim Munzin | | 3rd |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 0 | 356 A Carrera GT | Chuck Rickert | | 1st |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 1 | 356 Speedster | Robert Schoening | | 23rd |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 9 | 356 A Carrera | Ed Walsh | | DNS |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 11 | 356 | George Drolsom | | 15th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 19 | 356 Speedster | Thomas Steinbock | | 14th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 22 | 356 A Carrera | Cliff Phillips | | DNS |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 23 | 356 | Carl Schmidt | | DNF |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 36 | 356 Speedster | Lucille Key | | 26th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 44 | 356 Speedster | John Koperski | | 13th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 49 | 356 A Carrera | Harry Blanchard | | 2nd |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 62 | 356 A Carrera GT | Mike Collins | | 3rd |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 72 | 356 Coupé | Ernie Erickson | | DNS |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 77 | 356 Coupé | Phil Liautaud | | 27th |
| 6.9.1958 | SCCA National Road America [FP+GP+HM] | 79 | 356 A Carrera | Harry Palmer | | 10th |
| 7.9.1958 | GP Leopoldville | 2 | | Charles Piron | | 4th |
| 7.9.1958 | GP Leopoldville | 5 | | Didier Coune | | DNF |
| 7.9.1958 | 500 mile Road America | 6 | 356 A Carrera | Wester / Bodkins | | DNS |
| 7.9.1958 | 500 mile Road America | 12 | 550 | Alex Ratelle | | 15th |
| 7.9.1958 | 500 mile Road America | 14 | 550 | Schraegle / Freiheit | | 9th |
| 7.9.1958 | 500 mile Road America | 19 | 550 RS | Berlin / Lowe | | DNF |
| 7.9.1958 | 500 mile Road America | 21 | Special | Cooper / Barton | | 14th |
| 7.9.1958 | 500 mile Road America | 27 | 550 RS | Erickson / Hugus | | DNF |
| 7.9.1958 | USAC Lime Rock | 33 | 550 RS | Art Bunker | | 12th |
| 7.9.1958 | USAC Lime Rock | 34 | Special | Bill Rutan | | 5th |
| 7.9.1958 | 500 mile Road America | 34 | 550 RS | Newton Davis | | DNS |
| 7.9.1958 | 500 mile Road America | 42 | 550 RS | Causey / Rickert | | 3rd |
| 7.9.1958 | 500 mile Road America | 47 | 550 | Manting / Ward | | DNF |
| 7.9.1958 | Coppa Inter-Europa [GT+1.3] | 68 | 356 A 1500 GS Carrera | Huschke von Hanstein | | ?th |
| 7.9.1958 | USAC Lime Rock | 71 | 550 RS | Vic Meinhardt | | 4th |
| 7.9.1958 | 500 mile Road America | 71 | 550 | Staples / Stear | | 4th |
| 7.9.1958 | 500 mile Road America | 74 | 550 RS | Sesslar / Lunken | | DNF |
| 13.9.1958 | Preliminary Bridgehampton [GT] | 14 | 356 A 1600 | Arthur Peck | | 3rd |
| 13.9.1958 | Tourist Trophy | 21 | 718 RSK | Behra / Barth | Dr. Porsche | 4th |
| 13.9.1958 | Tourist Trophy | 22 | 550 RS | de Beaufort / Heins | Dr. Porsche | 8th |
| 13.9.1958 | Preliminary Bridgehampton [GT] | 95 | 356 A 1600 | J. Harrison | | 7th |
| 13.9.1958 | Harewood Acres [PS1.5] | | 356 A Carrera | Harry Blanchard | | 1st |
| 13.9.1958 | Indian Summer Trophy | | 550 | Chuck Dietrich | | 2nd |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 0 | 356 A Carrera GT | Chuck Rickert | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 5 | 356 | Ray Olson | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [Handicap] | 8 | 356 A 1600 | Buel Kinne | | 4th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 8 | 356 A 1600 | Buel Kinne | | DNF |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 8 | 356 A 1600 | Buel Kinne | | 12th |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 11 | 356 | George Drolsom | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 13 | 356 A Carrera GT | Manny Glazer | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 17 | 356 A Carrera | Bill Chadbourne | | 13th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 17 | 356 A Carrera | Bill Chadbourne | | 13th |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 22 | 356 A Carrera | Cliff Phillips | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 26 | 550 Spyder | George van de Sande | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 27 | 550 RS | Ernie Erickson | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [BM+CM+DM+BP] | 27 | 550 RS | Ernie Erickson | | raced |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 30 | 356 A 1600 Super | Donald Mark | | 21st |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 31 | 356 A | William Wilbourne | | 8th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 31 | 356 A | William Wilbourne | | DNF |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 37 | 356 A 1600 | Bruce Grohe | | 22nd |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 37 | 356 A 1600 | Bruce Grohe | | 26th |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 44 | 550 RS | Dean Causey | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 57 | 550 | Bernie Keller | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 71 | 356 | Bill Strand | | DNA |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 71 | 356 A 1600 | Victor Czito | | 14th |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 74 | 550 RS | Don Sesslar | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 77 | 356 A 1600 | Edward Todd | | 15th |
| 14.9.1958 | SCCA Regional Meadowdale [EM+FM+GM] | 77 | 550 | Bob Staples | | DNA |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 77 | 356 A 1600 | Edward Todd | | 11th |
| 14.9.1958 | Preliminary Bridgehampton [Handicap] | 77 | 356 A 1600 | Edward Todd | | 7th |
| 14.9.1958 | SCCA Regional Meadowdale [FP+GP+HP+HM] | 82 | 356 A Carrera GT | Gary Stephenson | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 114 | 356 A 1600 | Albert Close | | 22nd |
| 14.9.1958 | Preliminary Bridgehampton [Handicap] | 114 | 356 A 1600 | Albert Close | | 11th |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 114 | 356 A 1600 | Albert Close | | DNF |
| 14.9.1958 | SCCA Regional Bridgehampton [BP+CP+DP+EP+FP+GP] | 711 | 356 A 1500 Super Coupé | Steve Wilder | | 9th |
| 14.9.1958 | SCCA Regional Meadowdale [BM+CM+DM+BP] | | 550 | Chuck Rickert | | 3rd |