| 12.4.1958 | Grand Central [Sports] | 8 | TR3 | Jean Humphreys | | raced |
| 12.4.1958 | Grand Central [1820 Settlers] | 8 | TR3 | Jean Humphreys | | raced |
| 12.4.1958 | Grand Central [Sports] | 9 | TR3 | A. Gerst | | 9th |
| 12.4.1958 | Grand Central [1820 Settlers] | 28 | TR2 | Chris Lennox | | ?th |
| 12.4.1958 | Grand Central [Sports] | 29 | TR2 | Lionel Gilinsky | | 8th |
| 12.4.1958 | Grand Central [1820 Settlers] | 29 | TR2 | Tony Woodley | | ?th |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 18 | TR3 | Gary Pickens | Gary Pickens | 11th |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 113 | TR3 | Pete von Drell | Peter van Drell | 17th |
| 13.4.1958 | SCCA Regional Palm Springs [BM+CM+DM+EM] | 149 | TR2 | Bob Bondurant | | 10th |
| 13.4.1958 | Preliminary Palm Springs [Ladies+FIII] | 149 | TR2 | Janet Anderson | Nick Pastor | DNA |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 254 | TR3 | Rod Carveth | | 13th |
| 20.4.1958 | San Salvador | 14 | TR3 | Jaime Watson Newbill | Jaime Watson Newbill | ?th |
| 20.4.1958 | San Salvador | 15 | TR3 | Ernesto García Rossi | García Rossi | DNF |
| 20.4.1958 | San Salvador | 16 | TR3 | René Bouscayrol | René Bouscayrol | 3rd |
| 20.4.1958 | SCCA National Marlboro [EP+GM] | 23 | | Carl Maisel | | 10th |
| 20.4.1958 | Marlboro [Handicap 1st Heat] | 23 | | Carl Maisel | | 10th |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 41 | | Vince Tamburo | | 14th |
| 20.4.1958 | SCCA National Marlboro [EP+GM] | 41 | | Vince Tamburo | | DNF |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 44 | | Pierre Mion | | 11th |
| 20.4.1958 | SCCA National Marlboro [EP+GM] | 44 | | Pierre Mion | | 9th |
| 20.4.1958 | Marlboro [Handicap 2nd Heat] | 59 | TR3 | Harold Hurtley | | 2nd |
| 20.4.1958 | SCCA National Marlboro [EP+GM] | 59 | TR3 | Harold Hurtley | | 4th |
| 20.4.1958 | Trofeo Nuvolari Montjuich | | | Mach | | 8th |
| 26.4.1958 | Preliminary Louisville [Novice] | 411 | TR3 | Lindley Manning | | ?th |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 2 | TR3 | Charles Heindl | | 12th |
| 27.4.1958 | WJC Charterhall [S+1.5] | 30 | TR2 | D. Ramsay | Pitkerrick Garage | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 30 | TR2 | D. Ramsay | Pitkerrick Garage | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 36 | TR2 | A. S. Robinson | A. S. Robinson | raced |
| 27.4.1958 | WJC Charterhall [S2.0] | 37 | TR2 | N. C. Kerr | N. C. Kerr | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 38 | TR3 | David Bertram | D. M. Bertram | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 38 | TR3 | David Bertram | D. M. Bertram | raced |
| 27.4.1958 | WJC Charterhall [S2.0] | 42 | TR2 | H. Thompson | H. Thompson | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 42 | TR2 | H. Thompson | H. Thompson | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 43 | TR3 | N. P. Newall | N. P. Newall | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 43 | TR3 | N. P. Newall | N. P. Newall | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 44 | TR2 | R. Dickson | R. Dickson | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [DP+EP] | 44 | TR3 | George Grubb | | 14th |
| 27.4.1958 | WJC Charterhall [S+1.5] | 44 | TR2 | R. Dickson | R. Dickson | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 45 | TR2 | Denys Dobbie | A. D. M. Dobbie | raced |
| 27.4.1958 | WJC Charterhall [R/S+500] | 45 | TR2 | Denys Dobbie | A. D. M. Dobbie | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 45 | TR2 | Denys Dobbie | A. D. M. Dobbie | DNA |
| 27.4.1958 | WJC Charterhall [S+1.5] | 70 | TR3 | J. N. Turvey | J. N. Turvey | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 70 | TR3 | J. N. Turvey | J. N. Turvey | DNA |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 27.4.1958 | SCCA Regional Louisville [BP+CP+DP+EP+FP Porsche] | | TR3 | Samm | | ?th |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | TR3 | Samm | | 5th |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 27.4.1958 | Preliminary Louisville [EP+FP Porsche] | | | | | raced |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 5 | | William Kimberly | | DNA |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 5 | | William Kimberly | | DNA |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 59 | TR3 | Harold Hurtley | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 59 | TR3 | Harold Hurtley | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 68 | TR3 | Bill Lott | | DNA |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 68 | TR3 | Bill Lott | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 101 | | Pierre Mion | | DNA |
| 4.5.1958 | Preliminary Virginia [DP+EP+GM] | 101 | | Pierre Mion | | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 2A | TR3 | Jim Duncan | Ecurie Vite | 2nd |
| 10.5.1958 | 4 h Relay Harewood Acres | 2B | TR3 | Ray Liddle | Ecurie Vite | 2nd |
| 10.5.1958 | 4 h Relay Harewood Acres | 3P | TR3 | John Bowles | Bakers Cockleshells | 7th |
| 10.5.1958 | 4 h Relay Harewood Acres | 3A | TR3 | Harold McAulay | Bakers Cockleshells | 7th |
| 10.5.1958 | 4 h Relay Harewood Acres | 3B | TR3 | Bruce Peck | Bakers Cockleshells | 7th |
| 10.5.1958 | 4 h Relay Harewood Acres | 3C | TR2 | Bob LeFeuvre | Bakers Cockleshells | 7th |
| 10.5.1958 | 4 h Relay Harewood Acres | 6B | TR3 | Ed Bradley | Oaktra Four | 20th |
| 10.5.1958 | 4 h Relay Harewood Acres | 8C | TR3 | J. A. Maunder | The Hamcees | 12th |
| 10.5.1958 | 4 h Relay Harewood Acres | 12A | TR3 | John Latz | Ecurie Sticky Wicket | 22nd |
| 10.5.1958 | 4 h Relay Harewood Acres | 12B | TR3 | Johnny Richie | Ecurie Sticky Wicket | 22nd |
| 10.5.1958 | 4 h Relay Harewood Acres | 14P | Special | Dan Shaw | Ecurie Volanti | 9th |
| 10.5.1958 | 4 h Relay Harewood Acres | 21B | TR2 | Raymond Rockall | Scuderia Hysteria | 21st |
| 10.5.1958 | Novice Tracy [Production +1.6] | 22 | | Roland Davies | Roland Davies | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 25A | TR3 | Bill Biggins | Ecurie Pegasus | 14th |
| 10.5.1958 | 4 h Relay Harewood Acres | 26A | TR3 | William Klinck | The Klinkers | 15th |
| 10.5.1958 | 4 h Relay Harewood Acres | 26B | TR3 | Robert Moogk | The Klinkers | 15th |
| 10.5.1958 | 4 h Relay Harewood Acres | 28P | TR3 | George Clough | Ecurie Italiano | 23rd |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 58 | TR3 | Bud Morris | Bud Morris | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 65 | | Ron Skinner | Ron Skinner | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 71 | | Dwight Case | Dwight L. Case | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 109 | TR3 | Don Burrows | Don Burrows | ?th |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 112 | TR3 | Frank Crane | Frank Crane | ?th |
| 10.5.1958 | Novice Tracy [Production +1.6] | 112 | TR3 | Frank Crane | Frank Crane | ?th |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 121 | TR3 | Scott Zarbaugh | Scott Zarbaugh | DNA |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 140 | TR2 | Lawrence Hagin | Lawrence R. Hagin | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 140 | | Herman Thiel | Herman T. Thiel | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 143 | TR3 | Vi Jones | Vincent Jones | DNA |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 174 | TR3 | Al Freudenberg | Al Freudenberg | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 177 | TR3 | Bill Mason | Bill Mason | DNA |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 184 | TR3 | Rod Carveth | Rod Carveth | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 192 | | William Phelon | R. Wm. Phelon | DNA |
| 11.5.1958 | Hawaii [Locals] | 14 | TR3 Special | Carl Schmidt | Carl Schmidt | 10th |
| 11.5.1958 | Hawaii [Locals] | 15 | TR3 | Ed Sorenson | Douglas Blyth | 14th |
| 11.5.1958 | Hawaii [Production +1.6] | 15 | TR3 | Ed Sorenson | Douglas Blyth | DNA |
| 11.5.1958 | Hawaii [Locals] | 16 | TR3 | Walter Vail | Walter Vail | 16th |
| 11.5.1958 | Hawaii [Production +1.6] | 16 | TR3 | Walter Vail | Walter Vail | DNA |
| 11.5.1958 | SCCA Regional Tracy [CM+DM+EM] | 30 | | Don Miller | Donald G. Miller | DNA |
| 11.5.1958 | Hawaii [Locals] | 34 | TR2 | George Atcheson | George Atcheson | 20th |
| 11.5.1958 | Hawaii [Locals] | 99 | TR3 | John Bertrand | John Bertrand | 24th |
| 11.5.1958 | SCCA Regional Tracy [Production Group B] | 140 | TR2 | Lawrence Hagin | Lawrence R. Hagin | DNA |