| 5.7.1958 | National Open Crystal Palace [GT] | 69 | A | David Dixon | | DNA |
| 6.7.1958 | Västkustloppet [GT1.6] | 4 | A | Stig Arne Levin | | DNA |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 8 | A | Wilson Southam | W. J. Southam | raced |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 8 | A | Wilson Southam | W. J. Southam | DNA |
| 6.7.1958 | Västkustloppet [GT1.6] | 9 | A | Bo Josefsson | | 7th |
| 6.7.1958 | Västkustloppet [GT1.6] | 10 | A | Vincent Etzner | | 9th |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 24 | A | Bob Ellis | Robert Ellis | 19th |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 25 | A | Ted Hainis | Juanita Anderson | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 28 | TD | Jack Anderson | Jack Anderson | 14th |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 31 | A | Ed La Mantia | Ed La Mantia | 21st |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 32 | A | Bob Potter | Bob Potter | 14th |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 36 | TD | Marshall Swope | John Miller | DNA |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 39 | A | Neil Hepburn | J. N. Hepburn | raced |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 40 | A | Jack Dalton | Jack Dalton | 13th |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 41 | A | Tim Wilson | T. Y. Wilson | DNF |
| 6.7.1958 | BMRC Charterhall [BMRC Trophy Handicap] | 44 | A | John Milne | J. E. Milne | raced |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 44 | A | John Milne | J. E. Milne | raced |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 44 | A | John Milne | J. E. Milne | DNA |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 49 | TC | Lendal Gray | Lendal & Morton Grey | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 49 | TC | Morton Gray | Lendal Gray | 23rd |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 52 | A | Fraser Sibbald | Frazer Sibbald | 15th |
| 6.7.1958 | BMRC Charterhall [Sports Handicap] | 55 | A | Jack Richmond | J. M. Richmond | DNA |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 55 | A | Jack Richmond | J. M. Richmond | DNA |
| 6.7.1958 | BMRC Charterhall [BMRC Trophy Handicap] | 60 | A Coupe | George Gibson | G. T. Gibson | DNE |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 66 | A Twin Cam | Jack Flaherty | Kjell Qvale | raced |
| 6.7.1958 | BMRC Charterhall [Production Handicap] | 66 | TC | W. Beedes | Ecurie Midge | DNF |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 80 | Special | Roger Mace | Mace-Newland | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 81 | A | John Jordan | John Jordan | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 98 | A | Ed Leslie | Ed Leslie | 18th |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 99 | TC | Odette Bigler | Odette Bigler | DNA |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 106 | A | Joyce Sweet | Joyce Sweet | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 110 | A | Bob Winkelmann | Bob Winkelmann | 12th |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 129 | TF | William T. Ribbs | W. T. Ribbs | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 131 | A | Randall Cowherd | W. T. Ribbs | 16th |
| 6.7.1958 | SCCA Regional Vaca Valley [FP+GP+HP] | 137 | TF | Charlotte Duncan | Charlotte Duncan | DNA |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 137 | TF | John Miller | Charlotte Duncan | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 149 | Special | Jerry Lewis | Jerry Lewis | 17th |
| 6.7.1958 | SCCA Regional Vaca Valley [FM+GM+HM] | 158 | A | Dennis Riley | Dennis Riley | DNA |
| 6.7.1958 | SCCA Regional Vaca Valley [CM+DM+EM] | 237 | Simca Special | Stan Peterson | Stan Peterson | 8th |
| 6.7.1958 | Preliminary Vaca Valley [Ladies+Sedan+FIII+MG-T] | 252 | | Katharine Bliss | Katharine Bliss | DNA |
| 6.7.1958 | Hammond [Production 1.6+MGA+HM] | | A | Marvin Moar | | 2nd |
| 6.7.1958 | Hammond [Production 1.5+TR3+HM] | | A | Charles Guidroz | | 4th |
| 6.7.1958 | Hammond [Production 1.5+TR3+HM] | | TD | Carl Whyte | | 6th |
| 6.7.1958 | Hammond [Production 1.6+MGA+HM] | | A | | | DQ |
| 6.7.1958 | Hammond [Production 1.5+TR3+HM] | | A | | | DQ |
| 6.7.1958 | Hammond [Production 1.6+MGA+HM] | | A | Bill Campbell | | 4th |
| 6.7.1958 | Hammond [Production 1.6+MGA+HM] | | TD | Carl Whyte | | ?th |
| 6.7.1958 | Hawaii [S1.6 Heat 1] | | Special | George Reeves | | 2nd |
| 6.7.1958 | Hammond [Production 1.6+MGA+HM] | | A | Charles Guidroz | | 3rd |
| 12.7.1958 | BRSCC Full Sutton [GT] | 40 | A | Tommy Entwistle | | 9th |
| 12.7.1958 | BRSCC Full Sutton [GT] | 42 | A | J. H. Southam | | 10th |
| 12.7.1958 | BRSCC Full Sutton [GT] | 44 | A | J. H. V. Cross | | 4th |
| 12.7.1958 | BRSCC Full Sutton [GT] | 46 | A | W. R. Whitwell | | 11th |
| 13.7.1958 | LISCA Lime Rock [FP] | | A | Robert Wells | | 1st |
| 13.7.1958 | LISCA Lime Rock [FP] | | TD | Russ Brann | | ?th |
| 19.7.1958 | Berwick [Novice] | 40 | A | Eben Sales | | 2nd |
| 19.7.1958 | Berwick [MG] | 40 | A | Eben Sales | | 3rd |
| 19.7.1958 | Berwick [MG] | 95 | A | George Valentine | | 2nd |
| 19.7.1958 | Berwick [MG] | 96 | A | Millard Ripley | | 1st |
| 19.7.1958 | BEMC Harewood Acres [MG] | | A | Robert Soch | R. A. Soch | 2nd |
| 19.7.1958 | BEMC Harewood Acres [MG] | | A | Art Smith | Art Smith, Jr. | 3rd |
| 19.7.1958 | Berwick [GP+HP] | | | | | raced |
| 19.7.1958 | BEMC Harewood Acres [MG] | | A | Jack Broad | Jack Broad | 1st |
| 19.7.1958 | BEMC Harewood Acres [MG] | | TC | Al Tucker | A. H. Tucker | ?th |
| 19.7.1958 | Berwick [GP+HP] | | | | | raced |
| 19.7.1958 | Berwick [GP+HP] | | | | | raced |
| 19.7.1958 | Berwick [GP+HP] | | | | | raced |
| 19.7.1958 | BEMC Harewood Acres [MG] | | TD | Norm Croucher | Norm Croucher | ?th |
| 19.7.1958 | BEMC Harewood Acres [MG] | | TF | John Tame | John S. Tame | ?th |
| 19.7.1958 | BEMC Harewood Acres [Production 1.5] | | A | Robert Soch | R. A. Soch | 3rd |
| 20.7.1958 | SCCA Regional Thompson [FP] | 5 | A | Chris White | | 15th |
| 20.7.1958 | SCCA Regional Thompson [FP] | 18 | A | Edward Richard | | DNA |
| 20.7.1958 | SCCA Regional Thompson [FP] | 22 | A | Wain Donoghue | | 13th |
| 20.7.1958 | SCCA Regional Thompson [FP] | 39 | A | Earl Simpson | | DNA |
| 20.7.1958 | SCCA Regional Thompson [FP] | 50 | A | James Stevens | | DNA |
| 20.7.1958 | SCCA Regional Thompson [GP] | 59 | TD | John Voss | | raced |
| 20.7.1958 | SCCA Regional Thompson [GP] | 60 | TC | Eric O. Pettit | | raced |
| 20.7.1958 | SCCA Regional Thompson [FP] | 74 | A | Henry Van Deusen | | DNF |
| 20.7.1958 | SCCA Regional Thompson [FP] | 93 | A | Earl Simpson | | 11th |
| 20.7.1958 | SCCA Regional Thompson [FP] | 94 | A | Richard Kinsey | | 12th |
| 20.7.1958 | SCCA Regional Thompson [FP] | 180 | A | Don Urian | | 9th |
| 26.7.1958 | MCMC Oulton Park [S1.5] | 22 | A | Doreen Harris | Reg Harris (M/cr.) Ltd. | DNA |
| 26.7.1958 | MCMC Oulton Park [Closed] | 22 | A | Doreen Harris | Reg Harris (M/cr.) Ltd. | 9th |
| 26.7.1958 | MCMC Oulton Park [S1.5] | 79 | TD | Harry Ratcliffe | Harry Ratcliffe | DNA |
| 26.7.1958 | MCMC Oulton Park [Closed] | 88 | A | Tom Threlfall | Tom Threlfall | 5th |
| 3.8.1958 | SCCA Regional Shelton [S1.5] | 17 | A | Bill Kemper | | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 31 | A | Ed La Mantia | Ed La Mantia | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 40 | A | Jack Dalton | T. R. Langley | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 56 | TD | Marshall Swope | John Miller | 12th |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 66 | A Twin Cam | Jack Flaherty | Kjell Qvale | DNA |
| 3.8.1958 | SCCA Regional Shelton [S1.5] | 96 | A | Don Rushlight | | DNA |
| 3.8.1958 | SCCA Regional Shelton [S1.5] | 103 | A | John Hall | | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 110 | A | Bob Winkelmann | Ed Crooks | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 131 | A | Randall Cowherd | William Ribbs | 10th |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 137 | TF | Charlotte Duncan | Charlotte M. Duncan | DNA |
| 3.8.1958 | SCCA Regional Minden [FP+GP+HP] | 142 | A | Ben Thrall | Ben Thrall | DNA |
| 3.8.1958 | Novice Minden [FP+GP+HP] | 225 | A | Elroy Anderson | Mrs. Elroy Anderson | DNA |
| 3.8.1958 | SCCA Regional Minden [FM+GM+HM] | 228 | Special | Jack Anderson | Jack H. Anderson | DNA |
| 3.8.1958 | Novice Minden [FP+GP+HP] | 293 | A | Charley Monte | Charley Monte | DNA |
| 3.8.1958 | Novice Minden [FP+GP+HP] | 299 | TF | P. H. Beam | P. H. Beam | DNA |