| 5.1.1964 | SCCA Regional Phoenix | | #CM/5/62 | Jack Hinkle | | 1st |
| 2.2.1964 | SCCA Divisional Riverside [CM+DM+EM+FM+GM] | 13 | | Bob Montana | Bob Montana | 3rd |
| 15.2.1964 | 250 mile Daytona | 29 | | Ray Heppenstall | | DNF |
| 15.2.1964 | 250 mile Daytona | 42 | #CM/7/59? | Harry Washburn | | 17th |
| 16.2.1964 | SCCA Divisional Phoenix [CM+DM+EM+FM+GM] | 61 | #CM/5/62 | Jack Hinkle | | 1st |
| 1.3.1964 | USRRC Augusta | 4 | | Dick Macon | | DNF |
| 1.3.1964 | USRRC Augusta | | | Ray Heppenstall | | DNS |
| 21.3.1964 | BARC Oulton Park [S+1.2] | 42 | | Jackie Stewart | Ecurie Ecosse | 1st |
| 30.3.1964 | Lavant Cup Goodwood | 32 | | Jackie Stewart | Ecurie Ecosse | 2nd |
| 5.4.1964 | USRRC Pensacola | 44 | | Roy Kumnick | | DNF |
| 5.4.1964 | SCCA Divisional Tucson [CM+DM+EM+FM+GM] | 61 | #CM/5/62 | Jack Hinkle | | 1st |
| 5.4.1964 | USRRC Pensacola | 67 | | Roger Penske | | 2nd |
| 5.4.1964 | SCCA Divisional Tucson [CM+DM+EM+FM+GM] | | | Bob Montana | | ?th |
| 11.4.1964 | Oulton Park Trophy | 1 | #T61P-unnumbered | Roy Salvadori | C. T. Atkins | DNA |
| 11.4.1964 | Oulton Park Trophy | 10 | | Jackie Stewart | Ecurie Ecosse | DNS |
| 19.4.1964 | National Open Phoenix | 9 | #CM/4/63 | Skip Hudson | Nickey Chevrolet | 2nd |
| 19.4.1964 | National Open Phoenix | 13 | | Bob Montana | | DNS |
| 19.4.1964 | BRSCC Mallory Park [Formula Libre] | | | Bob Waters | | raced |
| 25.4.1964 | MMKMC Silverstone [Formula Libre] | 22 | | Bob Waters | R. W. Waters | 4th |
| 25.4.1964 | Autosport Silverstone [SR/GT+2.0] | 22 | | Bob Waters | | 2nd |
| 25.4.1964 | MMKMC Silverstone [Sports Unlimited] | 22 | | Bob Waters | R. W. Waters | DNF |
| 26.4.1964 | USRRC Riverside | 9 | #CM/4/63 | Skip Hudson | Nickey Chevrolet | 1st |
| 26.4.1964 | USRRC Riverside | 78 | | Bart Martin | | 9th |
| 26.4.1964 | USRRC Riverside | 187 | | Jim Parkinson | | DNF |
| 26.4.1964 | USRRC Riverside | 666 | | Roger Penske | | DNA |
| 2.5.1964 | Silverstone International | 56 | #T61P-unnumbered | Roy Salvadori | C. T. Atkins | 2nd |
| 3.5.1964 | USRRC Laguna Seca | 78 | | Bart Martin | Grizzly Racing | DNF |
| 3.5.1964 | USRRC Laguna Seca | 91 | #CM/4/63 | Skip Hudson | Nickey Chevrolet | DNF |
| 3.5.1964 | USRRC Laguna Seca | 187 | | Jim Parkinson | Ernest Gravelle | DNF |
| 10.5.1964 | USRRC Kent | 9 | #CM/4/63 | Skip Hudson | Nickey Chevrolet | DNS |
| 10.5.1964 | BARC Brands Hatch [Formula Libre] | 78 | | Bob Waters | R. W. Waters | DNF |
| 10.5.1964 | BARC Brands Hatch [S+1.2] | 78 | | Bob Waters | R. W. Waters | DNF |
| 10.5.1964 | USRRC Kent | 178 | | Bart Martin | | 18th |
| 17.5.1964 | National Davidson | | #CM/6/63 | Ludwig Heimrath | Comstock | DNF |
| 17.5.1964 | SCCA Divisional Del Mar [CM+DM+EM+FM+GM] | | | Bob Montana | | ?th |
| 18.5.1964 | Whitsun Goodwood | 1 | #T61P-unnumbered | Roy Salvadori | C. T. Atkins | 1st |
| 24.5.1964 | Player's Pacific Westwood | | | Eppie Wietzes | Comstock | DNS |
| 24.5.1964 | Player's Pacific Westwood | | #CM/6/63 | Ludwig Heimrath | Comstock | 3rd |
| 30.5.1964 | BARC Goodwood [Sports] | 135 | | Bob Waters | R. W. Waters | DNF |
| 30.5.1964 | BARC Goodwood [Formula Libre] | 135 | | Bob Waters | R. W. Waters | DNF |
| 31.5.1964 | SCCA National Bridgehampton [CM+DM+EM+FM+GM+HM] | 49 | #CM/4/62 | Sherman Decker | | DNF |
| 31.5.1964 | SCCA Divisional Courtland [CM+DM+EM+FM+GM+AP+BP+CP+DP] | | | Ed Cantrell | | DNF |
| 6.6.1964 | Player's 200 Mosport | 55 | #CM/6/63 | Ludwig Heimrath | Canadian Comstock Ltd. | 4th |
| 7.6.1964 | SCCA Regional Stockton [Modified] | | | Bart Martin | | 2nd |
| 13.6.1964 | SCCA Regional Lime Rock [CM+DM+EM+FM+GM+HM] | 12 | | Owen Rutherford | | 11th |
| 13.6.1964 | JDC Crystal Palace [SR] | 94 | | Bob Waters | Bob Waters | ?th |
| 14.6.1964 | SCCA Divisional Willow Springs [CM+DM+EM+FM+GM] | 78 | | Bart Martin | Bart Martin | 1st |
| 20.6.1964 | Spring Trophy Mosport | 55 | #CM/6/63 | Ludwig Heimrath | Canadian Comstock Ltd. | 1st |
| 21.6.1964 | SCCA National Road America [CM+DM+EM+FM] | 41 | | Roy Kumnick | | DNF |
| 27.6.1964 | SCCA Regional Watkins Glen [CM+DM+EM+FM+GM+AP+BP] | 49 | #CM/4/62 | Sherman Decker | George J. Constantine | 2nd |
| 27.6.1964 | SCCA Regional Watkins Glen [CM+DM+EM+FM+GM+AP+BP] | 76 | | Paul Hyatt | | DNA |
| 27.6.1964 | Preliminary Salt Lake [CM+DM+EM+FM+GM+AP+BP] | | | Bob Montana | | 2nd |
| 28.6.1964 | GP Watkins Glen | 12 | | George Wintersteen | Mrs. John F. Wintersteen | DNF |
| 28.6.1964 | GP Watkins Glen | 55 | #CM/6/63 | Ludwig Heimrath | Comstock Racing Team | 4th |
| 28.6.1964 | GP Watkins Glen | 79 | | Bob Mouat | Capt. Paul Hyatt | 12th |
| 28.6.1964 | SCCA Regional Osceola [Main] | 99 | | Grant Clark | Ed Cantrell | 1st |
| 28.6.1964 | SCCA Divisional Salt Lake [CM+DM+EM+FM+GM] | | | Bob Montana | | 1st |
| 28.6.1964 | SCCA Divisional Lynndale Farms [CM+DM+EM+FM+GM] | | | Owen Rutherford | | 6th |
| 4.7.1964 | Martini Trophy Silverstone | 29 | | Bob Waters | R. W. Waters | raced |
| 4.7.1964 | Martini Trophy Silverstone | 37 | #T61P-unnumbered | Roy Salvadori | C. T. Atkins | DNS |
| 5.7.1964 | SCCA National Lake Garnett [CM+DM+EM+FM+GM+AP] | 61 | #CM/5/62 | Jack Hinkle | Jack Hinkle | 1st |
| 5.7.1964 | MWCSCC Meadowdale [Main] | | | Owen Rutherford | | ?th |
| 5.7.1964 | SCCA Divisional Thompson [CM+DM+EM+FM+GM+AP+BP] | | #CM/4/62 | Sherman Decker | | 1st |
| 11.7.1964 | GP Brands Hatch | 1 | #T61P-unnumbered | Roy Salvadori | C. T. Atkins | 3rd |
| 12.7.1964 | SCCA Divisional Cotati [CM+DM+EM+FM+GM] | 78 | | Bart Martin | Jim Payne/Irv Dickson | 1st |
| 2.8.1964 | SCCA Divisional Thompson [CM+DM+EM+FM+AP+BP] | | #CM/4/62 | Sherman Decker | | DNF |
| 2.8.1964 | Mont-Tremblant | | #CM/6/63 | Ludwig Heimrath | | 1st |
| 2.8.1964 | SCCA Divisional Kent [CM+DM+EM+FM+GM] | | | Bart Martin | | 1st |
| 3.8.1964 | Guards Trophy Brands Hatch | 3 | #T61P-unnumbered | Roy Salvadori | C. T. Atkins | DNF |
| 3.8.1964 | SCCA Divisional Opelousas [CM+DM+EM+FM+GM+AP+BP] | | | Harry Washburn | | DNF |
| 8.8.1964 | Mosport [Modified] | | #CM/6/63 | Ludwig Heimrath | | 1st |
| 9.8.1964 | USRRC Meadowdale | 8 | #CM/4/63 | Skip Hudson | Nickey Chevrolet | DNF |
| 9.8.1964 | USRRC Meadowdale | 11 | | Owen Rutherford | Owen Rutherford | DNF |
| 9.8.1964 | USRRC Meadowdale | 12 | | George Wintersteen | Bernice Mc I. Wintersteen | 4th |
| 9.8.1964 | USRRC Meadowdale | 41 | | Roy Kumnick | Tero-Corvette | DNF |
| 9.8.1964 | SCCA Regional Candlestick [CM+DM+EM+FM+GM] | 78 | | Bart Martin | | 1st |
| 15.8.1964 | LASC Harewood Acres | | #CM/6/63 | Ludwig Heimrath | Canadian Comstock Ltd. | 1st |
| 15.8.1964 | LASC Harewood Acres [Modified +1.6] | | #CM/6/63 | Ludwig Heimrath | Canadian Comstock Ltd. | 1st |
| 1964 | SCCA Regional Osceola [Main] | | | Ed Cantrell | | DNF |
| 1964 | Corpus Christi [CM+DM+EM+FM+GM+AP+CP+FL] | | #CM/7/59? | Harry Washburn | | raced |