| 27.4.1958 | WJC Charterhall [S1.5] | 14 | | J. Maurice | J. Maurice | DNA |
| 27.4.1958 | WJC Charterhall [S1.5] | 28 | | J. D. Jackson | J. D. Jackson | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 33 | | Jack Richmond | J. M. Richmond | raced |
| 27.4.1958 | WJC Charterhall [R/S+500] | 33 | | Jack Richmond | J. M. Richmond | raced |
| 27.4.1958 | WJC Charterhall [S1.5] | 33 | | Jack Richmond | J. M. Richmond | raced |
| 27.4.1958 | WJC Charterhall [S1.5] | 68 | | John Milne | J. E. Milne | DNA |
| 27.4.1958 | WJC Charterhall [S2.0] | 68 | | John Milne | J. E. Milne | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [FP] | 151 | | Paul Romano | | 22nd |
| 27.4.1958 | WJC Charterhall [S1.5] | | | Entwistle | | raced |
| 4.5.1958 | Preliminary Virginia [FP+GP+HP+KP+HM] | 44 | | Duncan Black | | DNA |
| 4.5.1958 | SCCA National Virginia [DP+EP+FP+GP+HP+KP+GM+HM] | 44 | | Duncan Black | | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 2P | | Ian Grant | Ecurie Vite | 2nd |
| 10.5.1958 | 4 h Relay Harewood Acres | 2C | | Jack Broad | Ecurie Vite | 2nd |
| 10.5.1958 | 4 h Relay Harewood Acres | 8B | | J. W. Craven | The Hamcees | 12th |
| 10.5.1958 | Novice Tracy [Production 1.6] | 9 | | Bob Glaeser | Bob Glaeser | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 10B | | Harry Haigh | Ecurie Grande | 13th |
| 10.5.1958 | 4 h Relay Harewood Acres | 10C | | Harry Entwistle | Ecurie Grande | 13th |
| 10.5.1958 | 4 h Relay Harewood Acres | 11A | | Louis Levtov | The Midgets | 17th |
| 10.5.1958 | 4 h Relay Harewood Acres | 11B | | Steven Broady | The Midgets | 17th |
| 10.5.1958 | 4 h Relay Harewood Acres | 11C | | Lorne Punchon | The Midgets | 17th |
| 10.5.1958 | Novice Tracy [Production 1.6] | 13 | | Gilbert Haley | Gilbert Haley | DNA |
| 10.5.1958 | 4 h Relay Harewood Acres | 17P | | Sid Barraclough | Northern Midgets | 10th |
| 10.5.1958 | 4 h Relay Harewood Acres | 17A | | P. J. Miles | Northern Midgets | 10th |
| 10.5.1958 | 4 h Relay Harewood Acres | 17B | | N. E. Sheir | Northern Midgets | 10th |
| 10.5.1958 | 4 h Relay Harewood Acres | 17C | | E. Jones | Northern Midgets | 10th |
| 10.5.1958 | 4 h Relay Harewood Acres | 20B | | R. W. Evans | The Hasas | DNF |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 31 | | Ed La Mantia | Ed La Mantia | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 31 | | Ted Alexander | Ed La Mantia | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 32 | | Bob Potter | Robert C. Potter | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 32 | | LeRon Jensen | Leron Jensen | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 40 | | Jack Dalton | Ed Crooks | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 52 | | Fraser Sibbald | Fraser Sibbald | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 62 | | Lee Talbot | Lee M. Talbot | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 75 | | Dan-San Abbott | Dan San Abbott | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 81 | | John Jordan | John L. Jordan | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | 84 | | Ed Leslie | Ed Leslie | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 93 | | Charley Monte | Charley Monte | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 148 | | Rick Hilgers | Richard Hilgers | ?th |
| 10.5.1958 | Novice Tracy [Modified] | 158 | | Eugene Smith | Eugene Smith | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | 182 | | John May | James Hampton | DNA |
| 10.5.1958 | Preliminary Tracy [Production 1.6] | | | Gordon Wilson | Leron Jensen | DNA |
| 10.5.1958 | Novice Tracy [Production 1.6] | | | Ed Leslie | | ?th |
| 10.5.1958 | Novice Tracy [Production 1.6] | | | Leonard Gordon | | 2nd |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 13 | | Joanne White | Joann White | 5th |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 31 | | Ed La Mantia | Ed La Mantia | DNA |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 32 | | Bob Potter | Robert C. Potter | 5th |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 40 | | Jack Dalton | Ed Crooks | 3rd |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 52 | | Fraser Sibbald | Fraser Sibbald | 6th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 53 | | John Hoogs | John Hoogs | DNA |
| 11.5.1958 | Hawaii [S1.6] | 53 | | John Hoogs | John Hoogs | 17th |
| 11.5.1958 | Hawaii [Match] | 53 | | John Hoogs | John Hoogs | DNA |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 75 | | Dan-San Abbott | Dan San Abbott | DNA |
| 11.5.1958 | Targa Florio | 78 | | Alfredo Fondi | | DNA |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 81 | | John Jordan | John L. Jordan | 11th |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 84 | | Ed Leslie | Ed Leslie | 7th |
| 11.5.1958 | Hawaii [Match] | 101 | | Jack Garner | Jack Garner | DNA |
| 11.5.1958 | Hawaii [Locals] | 101 | | Jack Garner | Jack Garner | 23rd |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 101 | | Jack Garner | Jack Garner | DNA |
| 11.5.1958 | Hawaii [S1.6] | 101 | | Jack Garner | Jack Garner | 12th |
| 11.5.1958 | Hawaii [Locals] | 118 | | Wallace Whitcomb | Wallace Whitcomb | 26th |
| 11.5.1958 | Hawaii [S1.6] | 118 | | Wallace Whitcomb | Wallace Whitcomb | 16th |
| 11.5.1958 | Hawaii [Production 1.6/Sedan] | 118 | | Wallace Whitcomb | Wallace Whitcomb | DNA |
| 11.5.1958 | Hawaii [Match] | 118 | | Wallace Whitcomb | Wallace Whitcomb | DNA |
| 11.5.1958 | SCCA Regional Tracy [Production Group A] | 151 | | Leonard Gordon | | 9th |
| 11.5.1958 | SCCA Regional Tracy [MG+Ladies+Sedan+FIII] | 152 | | Joyce Sweet | Joyce Anne Sweet | 3rd |
| 11.5.1958 | SCCA Regional Tracy [FM+GM+HM] | 158 | | Dennis Riley | Dennis Riley | 10th |
| 15.5.1958 | Aspern [GT1.6] | 67 | | Peter Hammerschmidt | P. Hammerschmidt | raced |
| 15.5.1958 | Aspern [GT1.6] | 72 | | Robert Kranz | Robert Kranz | DNA |
| 18.5.1958 | GP Spa [GT2.0] | 28 | | Romain | | ?th |
| 18.5.1958 | SCCA National Cumberland [FP] | 44 | | Duncan Black | Duncan Black | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 67 | | Fred Reynolds | Fred Reynolds | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 68 | | J. Robb Wilson | J. Robb Wilson | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 79 | | Phil Forsyth | Philip Forsyth | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 79 | | Forsyth | Philip Forsyth | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 92 | | Edward A. Patterson | Edward A. Patterson | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 107 | | Ben Fowke | Benj. G. S. Fowke, Jr. | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 109 | | Walt Hoover | Walter R. Hoover | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 114 | | Huntley Perry | Huntley H. Perry | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 121 | | Homer Dasey | Homer H. Dasey | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 121 | | Laura Dasey | Homer H. Dasey | DNA |
| 18.5.1958 | Preliminary Cumberland [Ladies] | 126 | | Joyce Botkin | Robert F. Botkin, MD. | DNA |
| 18.5.1958 | SCCA National Cumberland [EM+FM] | 139 | | Roger Walker | Roger B. Walker | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 147 | | Archie Meihls | Archie Meihls | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 158 | | David Muir | L. E. Robinson | DNA |
| 18.5.1958 | SCCA National Cumberland [FP] | 174 | | Gene Parsons | George Eugene Parsons | DNA |
| 18.5.1958 | LISCA Lime Rock [FP] | | | Sherman Decker | | ?th |
| 18.5.1958 | LISCA Lime Rock [FP] | | | Henry Van Deusen | | ?th |
| 18.5.1958 | LISCA Lime Rock [FP] | | | Paul Romano | | ?th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 55 | | T. L. A. Burgess | | 8th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 57 | | J. H. V. Cross | | 6th |
| 24.5.1958 | BRSCC Full Sutton [PS] | 59 | | K. Wilson | | 12th |
| 25.5.1958 | GP des Frontières [GT2.0+TS1.0] | | | Romain | | 4th |
| 25.5.1958 | Hourglass Field [Ladies] | | | Barb Nieland | | 2nd |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 32 | | Bill Beedie | Ecurie Midge Racing Team | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 36 | | Ken Mackenzie | Ecurie Chiltern | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 37 | | Chris Tooley | C. P. Tooley | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 38 | | Bob Vincent | R. Vincent | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 39 | | David Dixon | Ecurie Chiltern | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 40 | | Tommy Entwistle | T. Entwistle | DNA |
| 26.5.1958 | Autosport Mallory Park [PS1.6] | 42 | | D. J. Hayles | Ecurie Chiltern | DNA |