| 5.7.1958 | SCCA National Lime Rock [DP+GM] | 29 | | Robert C. Davidson | | 15th |
| 5.7.1958 | LASC Green Acres [Century Class] | 66 | | Ralph Durbin | R. L. Durbin | 1st |
| 5.7.1958 | LASC Green Acres [Trophy] | 66 | | Ralph Durbin | R. L. Durbin | 6th |
| 5.7.1958 | LASC Green Acres [S2.7] | 66 | | Ralph Durbin | R. L. Durbin | 1st |
| 5.7.1958 | LASC Green Acres [S+2.6] | 66 | | Ralph Durbin | R. L. Durbin | 8th |
| 5.7.1958 | LASC Green Acres [S2.7] | 67 | | Marcel Dupont | Marcel Dupont | DNA |
| 5.7.1958 | LASC Green Acres [S+2.6] | 67 | | Marcel Dupont | Marcel Dupont | DNA |
| 5.7.1958 | LASC Green Acres [Century Class] | 67 | | Marcel Dupont | Marcel Dupont | DNA |
| 5.7.1958 | LASC Green Acres [S+2.6] | 68 | | Ed Lawrence | Edwin P. Lawrence | 11th |
| 5.7.1958 | LASC Green Acres [S2.7] | 68 | | Ed Lawrence | Edwin P. Lawrence | 7th |
| 5.7.1958 | LASC Green Acres [Century Class] | 68 | | Ed Lawrence | Edwin P. Lawrence | DNA |
| 5.7.1958 | Preliminary Vaca Valley [TR+Morgan+AH+Veloce+Super] | 85 | | William Kinchloe | William Kincheloe | DNA |
| 5.7.1958 | LASC Green Acres [S+2.6] | 93 | | D. Baxter | | 13th |
| 5.7.1958 | SCCA National Lime Rock [DP+GM] | 112 | | John Colgate | | 9th |
| 5.7.1958 | SCCA National Lime Rock [DP+GM] | 247 | | Fred Spross | | DNF |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 6 | | Chuck Parsons | | 8th |
| 6.7.1958 | SCCA Regional Vaca Valley [BP+CP+DP+EP] | 85 | | William Kinchloe | W. P. Kincheloe | 7th |
| 12.7.1958 | Preliminary Traverse City [Novice +1.5] | | | Mike Stellingworth | | 2nd |
| 13.7.1958 | Traverse City [Main] | | | Ralph Durbin | | raced |
| 13.7.1958 | Traverse City [DP+EP+Veloce] | | | Ralph Durbin | | 1st |
| 19.7.1958 | BEMC Harewood Acres [Production 3.0] | | | Dick Ecklund | Ecurie Pip | ?th |
| 20.7.1958 | SCCA Regional Thompson [DP+EP] | 14 | | Vin Sardi | | 2nd |
| 20.7.1958 | SCCA Regional Thompson [DP+EP] | 99 | | Robert C. Davidson | | raced |
| 20.7.1958 | SCCA Regional Thompson [Production] | 99 | | Robert C. Davidson | | raced |
| 3.8.1958 | SCCA Regional Shelton [PS+1.5] | 22 | | Patrick Obert | | DNA |
| 3.8.1958 | SCCA Regional Shelton [PS+1.5] | 118 | | Tom Pillette | | DNA |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 206 | | Chuck Parsons | Charles W. Parsons | 11th |
| 16.8.1958 | Harewood Acres [Le Mans] | 14 | | Mackenzie deB. Strathy | Mackenzie deB. Strathy | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | 14 | | Mackenzie deB. Strathy | Mackenzie deB. Strathy | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 97 | | John Cook | J. Cook | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | 97 | | John Cook | J. Cook | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | | | Fred Hayes | | 3rd |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 11 | | Dick Thompson | | 3rd |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 29 | | Robert C. Davidson | | 6th |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 51 | | John Colgate | | DNF |
| 17.8.1958 | SCCA National Montgomery [DP+EP] | 86 | | Bob Hathaway | | 8th |
| 23.8.1958 | LASC Green Acres [Le Mans] | 65 | | John Cook | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Century Class] | 65 | | John Cook | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 65 | | John Cook | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [S+2.0] | 65 | | John Cook | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [S+2.0] | 66 | | Ralph Durbin | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 66 | | Ralph Durbin | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 66 | | Ralph Durbin | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Century Class] | 66 | | Ralph Durbin | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [S+2.0] | 68 | | Ed Lawrence | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 68 | | Ed Lawrence | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Century Class] | 68 | | Ed Lawrence | Automobile Import Co. | DNA |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 68 | | Ed Lawrence | Automobile Import Co. | DNA |
| 23.8.1958 | BARC Goodwood [Marque] | | | David Shale | | 1st |
| 31.8.1958 | Preliminary Thompson [DP+EP] | 1 | | Dick Thompson | | 6th |
| 31.8.1958 | Preliminary Thompson [DP+EP] | 29 | | Robert C. Davidson | | 5th |
| 31.8.1958 | Preliminary Thompson [DP+EP] | 86 | | Bob Hathaway | | 9th |
| 31.8.1958 | Preliminary Thompson [DP+EP] | 247 | | Fred Spross | | 8th |
| 1.9.1958 | SCCA National Thompson [BP+CP+DP] | 1 | | Dick Thompson | | DNF |
| 1.9.1958 | SCCA National Thompson [BP+CP+DP] | 29 | | Robert C. Davidson | | 6th |
| 1.9.1958 | SCCA National Thompson [BP+CP+DP] | 86 | | Bob Hathaway | | 8th |
| 1.9.1958 | SCCA National Thompson [BP+CP+DP] | 247 | | Fred Spross | | 7th |
| 1.9.1958 | St. Eugene [Formula Libre] | | | George Brocklehurst | | DNF |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 15 | | Dick Thompson | | DNS |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 65 | | John Cook | | 30th |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 66 | | Ralph Durbin | | 12th |
| 6.9.1958 | Sunbac Silverstone [Production] | | | David Shale | | DNF |
| 7.9.1958 | 500 mile Road America | 65 | | Cook / McBride | | 17th |
| 7.9.1958 | 500 mile Road America | 66 | | Ralph Durbin | | 16th |
| 14.9.1958 | SCCA Regional Meadowdale [CP+DP+EP] | 65 | | John Cook | | DNA |
| 14.9.1958 | SCCA Regional Meadowdale [CP+DP+EP] | 66 | | Ralph Durbin | | DNA |
| 14.9.1958 | Preliminary Bridgehampton [BP+CP+DP+EP+FP+HP] | 66 | | Mary Flockton | | DNF |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 11 | | Dick Thompson | David Herson | 5th |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 41 | | Dick Ecklund | Ecurie "PIP" | DNF |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 72 | | John Holmes | John W. Holmes | 21st |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 129 | | Robert C. Davidson | Robert C. Davidson | 7th |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 130 | | John Colgate | PFC. John K. Colgate, Jr. | 9th |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 186 | | Bob Hathaway | | 16th |
| 20.9.1958 | SCCA National Watkins Glen [DP+EP+HP+IM] | 247 | | Fred Spross | Fred H. Spross | DNF |
| 21.9.1958 | LISCA Lime Rock [DP+HM] | 147 | | E. O'Brien | | ?th |
| 21.9.1958 | SCCA Regional Galveston [BP+CP+DP+EP+FP+GP] | | | R. L. Crownrich | | ?th |
| 21.9.1958 | Preliminary Galveston [BP+CP+DP+EP+GM] | | | R. L. Crownrich | | ?th |
| 28.9.1958 | ICNSCC Ellensburg [AP+BP+CP+DP+EP] | 46 | | Terry Nilsson | | 15th |
| 28.9.1958 | ICNSCC Ellensburg [AP+BP+CP+DP+EP] | 277 | | William Moore | | 21st |
| 4.10.1958 | Preliminary Virginia [Novice] | 18 | | Joe Grant | John Colgate | 3rd |
| 5.10.1958 | SCCA Regional Thompson [DP+EP] | 29 | | Robert C. Davidson | | 3rd |
| 5.10.1958 | SCCA Regional Thompson [DP+EP] | 69 | | Don Morrison | Donald Morrison | DNA |
| 5.10.1958 | SCCA National Virginia [BP+CP+DP+EP] | 81 | | John August | | 14th |
| 5.10.1958 | SCCA National Vaca Valley [BP+CP+DP] | 85 | | William Kinchloe | | 8th |
| 5.10.1958 | BRSCC Brands Hatch [Production] | 88 | | David Shale | David Shale | 1st |
| 5.10.1958 | SCCA National Vaca Valley [BP+CP+DP] | 106 | | Bert Smeeden | | DNF |
| 5.10.1958 | SCCA National Vaca Valley [BP+CP+DP] | 130 | | Ronnie Berryman | | DNF |
| 5.10.1958 | SCCA Regional Thompson [DP+EP] | 247 | | Fred Spross | | 4th |
| 11.10.1958 | 1 h Snetterton | 51 | | Jack Sears | J. G. Sears | 2nd |
| 11.10.1958 | 1 h Snetterton | 53 | | I. Palmer | I. Palmer | DNA |
| 11.10.1958 | 1 h Snetterton | 54 | | David Shale | D. Shale | 3rd |
| 11.10.1958 | 1 h Snetterton | 55 | | Bob Hudson | Ecurie Chiltern | 9th |
| 19.10.1958 | SCCA Regional Lime Rock [BP+CP+DP] | 14 | | John Colgate | | 5th |
| 19.10.1958 | SCCA Regional Lime Rock [BP+CP+DP] | 129 | | Robert C. Davidson | | 11th |
| 19.10.1958 | SCCA Regional Lime Rock [BP+CP+DP] | 247 | | Fred Spross | | 7th |
| 26.10.1958 | Vineland [DP] | | | | | raced |
| 1.11.1958 | Preliminary Palm Springs [BP+CP+DP+EP] | 113 | | Jack Rowe | Jack Rowe | ?th |
| 2.11.1958 | SCCA National Palm Springs [BP+CP+DP] | 113 | | Jack Rowe | Jack Rowe | 6th |
| 9.11.1958 | SCCA Regional Laguna Seca [BP+CP+DP] | 97 | | Thomas O'Neill | Tom Oneill | DNA |
| 9.11.1958 | SCCA Regional Laguna Seca [EP] | | | Bert Smeeden | Albert Smeeden | raced |