| 15.5.1958 | Aspern [S1.5] | 17 | 550 RS | Carel Godin de Beaufort | Ecurie Maarsbergen | DNF |
| 15.5.1958 | Aspern [S1.5] | 24 | 550 | Ernst Vogel | ÖASC | 2nd |
| 15.5.1958 | Aspern [S1.5] | 25 | 550 RS | Heinz Schiller | Ecurie Léman | raced |
| 15.5.1958 | Aspern [GT1.6] | 62 | 356 A 1500 GS Carrera | Ludwig Blendl | Ludwig Blendl | 3rd |
| 15.5.1958 | Aspern [GT1.6] | 84 | 356 1300 Super | Hermann Kunz | Hermann Kunz | 12th |
| 17.5.1958 | Chester | | 550 | Joe Sheppard | | raced |
| 18.5.1958 | SCCA National Cumberland [FP] | 13 | 356 A Carrera | M. A. Cappiello | Maj. M. G A. Cappiello | 3rd |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 13 | 356 A Carrera | Mrs. Tony Cappiello | Maj. M. G A. Cappiello | DNA |
| 18.5.1958 | GP Spa [GT2.0] | 20 | 356 A Carrera | Runte | | ?th |
| 18.5.1958 | GP Spa [GT2.0] | 21 | 356 A 1600 Super | Jim Clark | Border Reivers | 5th |
| 18.5.1958 | GP Spa [GT2.0] | 22 | 356 1600 Super | Carmelo | | ?th |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 23 | 550 RS | Denise McCluggage | Scuderia Skiddoo | 1st |
| 18.5.1958 | GP Spa [GT2.0] | 23? | 356 1600 Super | Vitaliti | | DNF |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 23 | 550 RS | Denise McCluggage | Scuderia Skiddoo | ?th |
| 18.5.1958 | SCCA National Cumberland [FP] | 24 | 356 | Buel Kinne | Buel W. Kinne | DNA |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 27 | 550 RS | Roy Schecter | Ray R. Schechter | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 30 | 550 | Suzy Dietrich | Bernard Vihl | 3rd |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 30 | | David Michaels | Bernard Vihl | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 32 | 356 | Bruce Jennings | Bruce R. Jennings | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 33 | 356 A Carrera GT Speedster | Emil Pupulidy | E. Pupulidy | 1st |
| 18.5.1958 | GP Spa [GT2.0] | 38 | 356 1600 Super | Paul Nokin | | 3rd |
| 18.5.1958 | GP Spa [GT2.0] | 39 | 356 A Carrera | Deetens | | DNF |
| 18.5.1958 | GP Spa [GT2.0] | 40 | 356 | Raminger | | DNA |
| 18.5.1958 | GP Spa [GT2.0] | 40 | 356 A Carrera | Inderelst | | ?th |
| 18.5.1958 | SCCA National Cumberland [FP] | 56 | 356 A Carrera GT | Gene Hobbs | E. E. Hobbs, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 69 | 356 | Nagle Bridwell | Nagle Bridwell | DNA |
| 18.5.1958 | SCCA National Cumberland [BM+CM+DM] | 74 | 550 RS | Don Sesslar | Cyrus L. Fulton | 3rd |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 74 | 550 RS | Don Sesslar | Cyrus L. Fulton | 1st |
| 18.5.1958 | SCCA National Cumberland [FP] | 83 | 356 A Carrera | John Cuevas | John Cuevas | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 84 | 356 | Morrow Decker | Cdr. S. M. Decker, Jr. | raced |
| 18.5.1958 | SCCA National Cumberland [FP] | 93 | 356 | Horace Ott | Horace A. Ott | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 100 | 356 | Antonio Valdes-Dapena | Antonio Valdes-Dapena | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 115 | 356 | Glenn Lazar | Glenn C. Lazar | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 117 | 356 | Edward Eichenlaub | E. Boyd Eichenlaub, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 129 | | Lorrain Holder | Manfred Holder | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 130 | 356 | Manfred Holder | Manfred Holder | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 135 | 356 | Bud Fehnel | C. F. Fehnel, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 137 | 356 | Don Wolf | Donald E. Wolf | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 143 | 356 A Carrera | Don Wester | Don P. Wester | 2nd |
| 18.5.1958 | SCCA National Cumberland [FP] | 213 | 356 | Ed Hugus | Franz J. Hannig | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 214 | 356 | Ray Ramsey | Ray Ramsey, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 233 | 550 | Newton Davis | Newton B. Davis | DNA |
| 18.5.1958 | GP Spa [GT2.0] | | 356 1600 Super | Breda | | DNF |
| 18.5.1958 | LISCA Lime Rock [FP] | | 356 A | R. Borman | | ?th |
| 18.5.1958 | LISCA Lime Rock [FP] | | 356 A | Hodge Brush | | ?th |
| 18.5.1958 | LISCA Lime Rock [FP] | | 356 A Carrera GT | Harry Blanchard | | ?th |
| 18.5.1958 | SCCA National Cumberland [FP] | | 356 A Carrera | Dick Nash | David L. Herson | DNA |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | | 550 RS | Bob Holbert | | ?th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 120 | 356 A 1600 Super | Jim Clark | | DNE |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 35 | 356 A 1600 Super | C. W. Lawson | C. W. Lawson | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 12 | 550 RS | Eldon Beagle | Eldon Beagle | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 19 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | D. D. Michelmore | DNA |
| 31.5.1958 | Novice Dunkirk [EP+FP+GP] | 23 | 356 | H. A. Wilbur | | 10th |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 24 | 356 1500 Super Speedster | Ed Barker | Ed Barker | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 29 | 550 RS Spyder | Joe Playan | Joe Playan | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 31 | 356 1600 Super Speedster | Ronnie Bucknum | Ronnie Bucknum | DNA |
| 31.5.1958 | LASC Green Acres [S/GT1.6] | 32 | 356 | | | raced |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 33 | 550 | Newton Davis | | 5th |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 40 | 550 | Davis / Kirby | John P. Davis | DNA |
| 31.5.1958 | Preliminary La Junta [Production+HM] | 41 | 356 1600 Super | Bill Randle | | 6th |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 50 | 550 RS | Ken Miles | Zipper Estes | 2nd |
| 31.5.1958 | LASC Green Acres [S/GT1.6] | 53 | 550 | | | raced |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 57 | Special | Orgeron / Eubank | H. M. Mathens | DNA |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 63 | 550 RS | Briggs Cunningham | Briggs Cunningham | 6th |
| 31.5.1958 | Novice Dunkirk [EP+FP+GP] | 64 | 356 A 1600 | Paul Vollmer | | 4th |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 72 | 356 A 1500 GS Carrera GT Speedster | Jimmy Moore | Jimmy Moore | DNA |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 77 | 550 RS | Vic Meinhardt | | 3rd |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 83 | 550 RS | Dick Thompson | | 2nd |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 88 | 550 RS | Jack McAfee | Stanley Sugarman | 1st |
| 31.5.1958 | Preliminary La Junta [BM+CM+DM+EM+FM+GM] | 119 | 550 RS | Donald Berlin | | 5th |
| 31.5.1958 | SCCA National Bridgehampton [FM+GM] | 140 | 550 RS | Bob Holbert | | 1st |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 151 | Spd. | Virginia Wackel | Virginia Wackel | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 170 | 356 A 1500 GS Carrera | Art Snyder | Art Snyder | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified +1.5] | 188 | S.S. | Jack McAfee | Stanley Sugarman | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 189 | Special | Arthur Plaxton | Wm. Morlang | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Ladies] | 193 | 550 Spyder | Betty Shutes | Betty Shutes | DNA |
| 31.5.1958 | Preliminary Santa Barbara [FP] | 200 | 356 A 1500 GS Carrera GT | Don Dickey | Donald Dickey | DNA |
| 31.5.1958 | Preliminary Santa Barbara [DP+EP] | 216 | 356 1600 Super Speedster | Chuck Teichen | Chuck Teichen | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 222 | 550 | John Peters | John Peters | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Novice] | 222 | 550 | John Peters | John Peters | 1st |
| 31.5.1958 | Preliminary Santa Barbara [Modified 1.5] | 296 | Special | Kaiser / Tannlund | Milt Sharp | DNA |
| 31.5.1958 | Novice Dunkirk [EP+FP+GP] | 717? | 356 1600 Super | Bill Strand | | 7th |
| 31.5.1958 | LASC Green Acres [S/GT1.6] | | 550 | Suzy Dietrich | | raced |
| 31.5.1958 | LASC Green Acres [S/GT1.6] | | 356 Coupé | Paul Montgomery | | raced |
| 31.5.1958 | Preliminary La Junta [BM+CM+DM+EM+FM+GM] | | 550 RS | Bob Donner | | 3rd |
| 31.5.1958 | ICNSCC Deer Park [Production 1.5] | | 356 | Bob Byrd | | 1st |
| 31.5.1958 | ICNSCC Deer Park [Production +1.5] | | 356 A Carrera GT | Jim Cleland | | ?th |
| 31.5.1958 | ICNSCC Deer Park [Formula Libre] | | 550 | Curt Berreman | | 4th |
| 31.5.1958 | ICNSCC Deer Park [Production 1.5] | | 356 | John Sparrow | | 3rd |
| 1.6.1958 | 1000 km Nürburgring | 21T | 718 RSK | Edgar Barth | Porsche KG | T-car |
| 1.6.1958 | 1000 km Nürburgring | 22 | 718 RSK | Scarlatti / von Frankenberg / de Beaufort | Dr. Ing. h. c. F. Porsche K. G. | DNS |
| 1.6.1958 | 1000 km Nürburgring | 51 | 356 A Carrera | Greger / Denk | Josef Greger | DNF |
| 1.6.1958 | 1000 km Nürburgring | 53 | 356 A Speedster | Wilbourne / Wuesthoff | William Wilbourne | 25th |
| 1.6.1958 | 1000 km Nürburgring | 56 | 356 A Carrera | Clark / Niessen | Bruno Runte | DNS |
| 1.6.1958 | 1000 km Nürburgring | 58 | 356 A Carrera | Lindberg / Lindqvist | Arne Lindberg | DNS |
| 1.6.1958 | 1000 km Nürburgring | 61 | 356 A Carrera | Harzheim / Heins | H. Harzheim | DNS |
| 1.6.1958 | 1000 km Nürburgring | 62 | 356 A Carrera | Albrecht / Appel | Fred Albrecht | DNF |
| 1.6.1958 | 1000 km Nürburgring | 63 | 356 A Carrera | Testut / Sibile | Ecurie Monte Carlo Louis Chiron | DNS |
| 1.6.1958 | 1000 km Nürburgring | 65 | 356 A Carrera | Blendl / Günther | Ludwig Blendl | DNS |
| 1.6.1958 | 1000 km Nürburgring | | 550 RS | Knippel / Merkel | Hans Knippel | DNA |