| 10.5.1958 | Preliminary Tracy [Production 1.6] | 20 | 356 A Carrera | Don Dickey | Donald Dickey | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 24B | | Brock Farrow | Rennmanschaft | 16th |
| 10.5.1958 | Novice Tracy [Production 1.6] | 27 | 356 Super | Leon Robertson | Leon Robertson | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 57 | 356 | George Horsfall | George Horsfall | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 57 | 356 | Dennis McCue | Dennis McCue | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 70 | 356 A Carrera | Fred Block | Fred Block | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 94 | 356 A Carrera GT | Roger Mace | Roger Mace | 1st |
| 10.5.1958 | Novice Tracy [Production 1.6] | 94 | 356 A Carrera | Roger Mace | Roger Mace | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 96 | 356 Super | Robert Peck | Robert R. Peck | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 102 | 356 1600 Super | Jack Woodard | Jack Woodard | 3rd |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 107 | 356 | Charles Kuhn | Charles Kuhn | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 116 | 356 | Duncan Reynard | Duncan Reynard | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 116 | 356 | Bob Herda | Robert Herda | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 126 | 356 | Bill Minor | William Minor, Jr. | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 129 | 356 | Roland Shirley | Roland Shirley | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 134 | 356 | John France | John France | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 136 | 356 Super | Emil Pardee | Emil Pardee | 4th |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 139 | 356 A Carrera | Dan Herman | Dan W. Herman | 5th |
| 10.5.1958 | Novice Tracy [Modified] | 141 | 550 | Jack West | Jack D. West | 1st |
| 10.5.1958 | Novice Tracy [Production 1.6] | 163 | 356 | Robert Skidmore, Jr. | Robert Skidmore, Jr. | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 170 | 356 A Carrera | Ed Vincent | Ed Vincent | 2nd |
| 10.5.1958 | Novice Tracy [Production 1.6] | 175 | 356 | Al Chapins | Al Chapins | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 180 | 356 A Carrera GT | Carl Meyer | Carl B. Meyer | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 183 | 356 | Tom Hixon | Thomas Hixon | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 194 | 356 Super Speedster | Richard Lee | Richard S. Lee | DNA |
| 10.5.1958 | Novice Tracy [Modified] | | | Al Chapuis | | 4th |
| 10.5.1958 | Novice Tracy [Production 1.6] | | 356 | William Slater | | 5th |
| 11.5.1958 | Hawaii [S1.6] | 7 | 550 | Loretta Richert | Loretta Richert | 5th |
| 11.5.1958 | Hawaii [Match] | 7 | 550 | Loretta Richert | Loretta Richert | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 7 | 550 | Loretta Richert | Loretta Richert | 10th |
| 11.5.1958 | Hawaii [Locals] | 7 | 550 | Loretta Richert | Loretta Richert | 4th |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 12 | 550 RS | Eldon Beagle | | 2nd |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 12 | 550 RS | Eldon Beagle | | 4th |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 20 | 356 A Carrera GT | Don Dickey | Donald Dickey | 4th |
| 11.5.1958 | Targa Florio | 26 | 356 A 1500 GS Carrera GT Coupé | Pucci / von Hanstein | Porsche KG | 6th |
| 11.5.1958 | Hawaii [Match] | 29 | 550 RS Spyder | Joe Playan | Joe Playan | DNA |
| 11.5.1958 | Hawaii [S1.6] | 29 | 550 RS Spyder | Joe Playan | Joe Playan | DNA |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 36 | 550 | Gordon Swett | Dr. Gordon Swett | 12th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 41 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | D. D. Michelmore | 1st |
| 11.5.1958 | Hawaii [S1.6] | 41 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | D. D. Michelmore | 6th |
| 11.5.1958 | Hawaii [Match] | 41 | 356 A 1500 GS Carrera GT Speedster | D. D. Michelmore | D. D. Michelmore | 4th |
| 11.5.1958 | Hawaii [Locals] | 55 | 356 Speedster | Jimmy Castle | Jimmy Castle | 19th |
| 11.5.1958 | Hawaii [Match] | 55 | 356 Speedster | Jimmy Castle | Jimmy Castle | DNA |
| 11.5.1958 | Hawaii [S1.6] | 55 | 356 Speedster | Jimmy Castle | Jimmy Castle | 11th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 55 | 356 Speedster | Jimmy Castle | Jimmy Castle | 4th |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 57 | 356 Normal | George Horsfall | George Horsfall | 4th |
| 11.5.1958 | Hawaii [S1.6] | 64 | 356 A Carrera | Gil Geer | Gil Geer | 8th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 64 | 356 A Carrera | Gil Geer | Gil Geer | 2nd |
| 11.5.1958 | Hawaii [Match] | 64 | 356 A Carrera | Gil Geer | Gil Geer | DNA |
| 11.5.1958 | Hawaii [Locals] | 64 | 356 A Carrera | Gil Geer | Gil Geer | 13th |
| 11.5.1958 | Targa Florio | 68 | 718 RSK | Behra / Scarlatti | Porsche KG | 2nd |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 70 | 356 A Carrera | Fred Block | Fred Block | DNA |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 70 | | Fred Block | | 7th |
| 11.5.1958 | Hawaii [Locals] | 72 | 356 Super | Ted Fukuda | Ted Fukuda | 17th |
| 11.5.1958 | Hawaii [Match] | 72 | 356 Super | Ted Fukuda | Ted Fukuda | DNA |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 72 | 356 Super | Ted Fukuda | Ted Fukuda | 3rd |
| 11.5.1958 | Hawaii [S+1.6] | 72 | 356 Super | Ted Fukuda | Ted Fukuda | DNA |
| 11.5.1958 | Hawaii [S1.6] | 72 | 356 Super | Ted Fukuda | Ted Fukuda | 9th |
| 11.5.1958 | Targa Florio | 76 | 356 A Carrera | Alfonso Thiele | | DNS |
| 11.5.1958 | Targa Florio | 80 | 550 RS | Scarlatti / Barth | Porsche KG | DNF |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 82 | | Dave Skilling | David Skilling | 5th |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 90 | Special | Russell May | | 10th |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 94 | 356 A Carrera | Roger Mace | Roger Mace | 14th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 102 | 356 1600 Super | Jack Woodard | | 2nd |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 107 | 356 Normal | Charles Kuhn | Charles Kuhn | 2nd |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 112 | 356 | Hal Melleney | | 5th |
| 11.5.1958 | Hawaii [Locals] | 112 | 356 | Hal Melleney | | 22nd |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 116 | 356 1600 Super | Bob Herda | Robert Herda | 14th |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 129 | | Doris Shirley | Doris Ann Shirley | 4th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 134 | 356 1600 Super | John France | | 12th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 136 | 356 1600 Super | Emil Pardee | Emil Pardee | 1st |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 139 | 356 A Carrera | Dan Herman | Dan W. Herman | 11th |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 141 | 550 | Jack West | Jack D. West | 7th |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 141 | 550 | Jack West | Jack D. West | 3rd |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 155 | 356 Normal | Peter Talbot | Dr. Peter S. Talbot | 1st |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 170 | 356 A Carrera | Ed Vincent | Ed Vincent | 17th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 176 | 356 1600 Super | George Grinzewitsch | George Grinzewitsch | 3rd |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 180 | 356 A Carrera GT | Carl Meyer | Carl B. Meyer | 8th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 180 | 356 A Carrera GT | Carl Meyer | Carl B. Meyer | DNA |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 188 | 550 RS | Jack McAfee | Stan Sugarman | 1st |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 188 | 550 RS | Jack McAfee | Stan Sugarman | 1st |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 193 | 550 Spyder | Betty Shutes | Betty Shutes | DNA |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 193 | 550 Spyder | Betty Shutes | Betty Shutes | 1st |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 212 | 550 | Erv Lehr | Erv Lehr | DNA |
| 15.5.1958 | Eläintarhanajo [GT] | 1 | 356 A Carrera | Arne Lindberg | | 5th |
| 15.5.1958 | Eläintarhanajo [GT] | 2 | 356 A 1500 GS Carrera GT Coupé | Carl-Gunnar Hammarlund | | 2nd |
| 15.5.1958 | Eläintarhanajo [GT] | 3 | 356 A Carrera | Folke Sjöberg | | 6th |
| 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] | 60 | 356 A 1500 GS Carrera | Richard von Frankenberg | Ecurie Maarsbergen | 1st |
| 15.5.1958 | Aspern [GT1.6] | 61 | 356 A 1500 GS Carrera | Max Kraus | ÖASC | raced |
| 15.5.1958 | Aspern [GT1.6] | 62 | 356 A 1500 GS Carrera | Ludwig Blendl | Ludwig Blendl | 3rd |
| 15.5.1958 | Aspern [GT1.6] | 63 | 356 A 1500 GS Carrera | Dieter Feth | Dieter Feth | raced |
| 15.5.1958 | Aspern [GT1.6] | 64 | 356 A 1500 GS Carrera | Siegfried Günther | Siegfried Günther | 2nd |
| 15.5.1958 | Aspern [GT1.6] | 65 | 356 A 1500 GS Carrera | Robert Küderli | Robert Küderli | raced |
| 15.5.1958 | Aspern [GT1.6] | 66 | 356 A 1500 GS Carrera | Herbert Nosek | ÖASC | raced |
| 15.5.1958 | Aspern [GT1.6] | 68 | 356 1600 | Leo Levine | Leo Levine | raced |
| 15.5.1958 | Aspern [GT1.6] | 69 | 356 A 1600 Super | Anton Urban | Anton Urban | raced |
| 15.5.1958 | Aspern [GT1.6] | 84 | 356 1300 Super | Hermann Kunz | Hermann Kunz | 12th |