| 4.6.1966 | Player's 200 Mosport | 2 | Elva Mark II | Chris Amon | Bruce McLaren Motor Racing Ltd. | 3rd |
| 4.6.1966 | Player's 200 Mosport | 4 | Elva Mark II B | Bruce McLaren | Bruce McLaren Motor Racing Ltd. | 1st |
| 4.6.1966 | Player's 200 Mosport | 5 | Elva Mark I | Jerry Entin | Entin Bros. Racing Team | DNS |
| 4.6.1966 | Player's 200 Mosport | 11 | Elva Mark II | Lothar Motschenbacher | Lothar | 2nd |
| 4.6.1966 | Player's 200 Mosport | 97 | Elva Mark II | Charlie Hayes | Charles Hayes Racing | raced |
| 5.6.1966 | Bulawayo 100 | | Elva Mark I | Bob Olthoff | | DNF |
| 12.6.1966 | SCCA Regional Metropolitan Stadium [Modified] | 39 | Elva Mark II | Charles Cox | | 1st |
| 18.6.1966 | BEMC National Mosport [Dunlop Trophy] | 57 | Elva Mark I | John Cordts | | 1st |
| 18.6.1966 | BEMC National Mosport [GT/S+1.6] | 57 | Elva Mark I | John Cordts | | 1st |
| 18.6.1966 | BARC Silverstone [Sports] | 101 | Elva Mark II | David Prophet | D. Prophet | DNA |
| 19.6.1966 | Hockenheim [S+1.6/R+1.1] | 9 | Elva Mark I | Cox Kocher | Cox Kocher | DNA |
| 19.6.1966 | June Sprints Road America [SR] | 39 | Elva Mark II | Charles Cox | | DNF |
| 26.6.1966 | GP Watkins Glen | 3 | Elva Mark II | Ludwig Heimrath | | DNF |
| 26.6.1966 | GP Watkins Glen | 17 | Elva Mark II | Lothar Motschenbacher | Lothar Motschenbacher | DNF |
| 26.6.1966 | GP Watkins Glen | 39 | Elva Mark II | Charles Cox | Charles Cox | DNA |
| 26.6.1966 | GP Watkins Glen | 45 | Elva Mark I | Rick Muther | James A. Linen, IV | DNA |
| 26.6.1966 | GP Watkins Glen | 96 | Elva Mark I B | Mike Goth | Mike Goth Racing | DNF |
| 26.6.1966 | GP Watkins Glen | 97 | Elva Mark II | Charlie Hayes | Charles Hayes Racing | DNA |
| 26.6.1966 | SCCA National Kent [Modified] | | Elva Mark II | Bill Amick | | DNF |
| 26.6.1966 | SA SCC Roy Hesketh | | Elva Mark I | Bob Olthoff | | 1st |
| 2.7.1966 | BAC Regionals Harewood Acres [Challenge Cup] | 39 | Elva Mark II | Ludwig Heimrath | Ludwig Heimrath | 1st |
| 2.7.1966 | BAC Regionals Harewood Acres [Challenge Cup] | 57 | Elva Mark I | John Cordts | David G. Billes | DNA |
| 3.7.1966 | SCCA National Ponca City [Modified+AP+BP] | | Elva Mark II | Bud Morley | | 1st |
| 3.7.1966 | MacDonald | | Elva Mark I | John Cordts | | DNF |
| 4.7.1966 | SCCA National Galveston [Modified] | | Elva Mark I | Joe Starkey | | 3rd |
| 4.7.1966 | SCCA National Galveston [Modified] | | Elva | Bill Fuller | | 4th |
| 4.7.1966 | SCCA National Galveston [Modified] | | Elva Mark II | Mason O'Keiff | | 2nd |
| 9.7.1966 | Martini Trophy Silverstone | 16 | Elva Mark I | John Coundley | John Coundley | DNA |
| 9.7.1966 | Martini Trophy Silverstone | 28 | Elva Mark I | Skip Scott | Kay Racing Ltd. | raced |
| 9.7.1966 | Martini Trophy Silverstone | 29 | | Peter Revson | Kay Racing Ltd. | DNA |
| 9.7.1966 | Martini Trophy Silverstone | 31 | Elva Mark II | David Prophet | David Prophet Racing Ltd. | 9th |
| 9.7.1966 | Martini Trophy Silverstone | 32 | Elva Mark II | Bob Bondurant | Alan Brown | 2nd |
| 9.7.1966 | Martini Trophy Silverstone | 40 | Elva Mark II | Keith St. John | Keith St. John | DNA |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 4 | Elva Mark II B | Bruce McLaren | McLaren Racing | 1st |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 6 | Elva Mark II | Bud Morley | Bud Morley | 3rd |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 11 | Elva Mark II | Lothar Motschenbacher | Lothar Motschenbacher | 2nd |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 39 | Elva Mark II | Ludwig Heimrath | | DNF |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 57 | Elva Mark I | John Cordts | | DNS |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 62 | Elva Mark II | John Cannon | Dan Blocker | 10th |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 73 | Elva Mark I | Bud Gates | Bud Gates | 15th |
| 10.7.1966 | SCCA Regional Pyote | | Elva Mark I | Joe Starkey | | DNA |
| 11.7.1966 | SA SCC East London | | Elva Mark I | Bob Olthoff | | 1st |
| 16.7.1966 | GP Brands Hatch | 42 | Elva Mark I | John Coundley | John O. Coundley | DNF |
| 16.7.1966 | GP Brands Hatch | 46 | Elva Mark I | Skip Scott | Kay Racing Ltd. | 2nd |
| 16.7.1966 | GP Brands Hatch | 47 | Elva Mark II | Chris Amon | Kay Racing Ltd. | 3rd |
| 16.7.1966 | GP Brands Hatch | 48 | Elva Mark I | Jacky Ickx | Alan Brown | 5th |
| 16.7.1966 | GP Brands Hatch | 50 | Elva Mark II | David Prophet | David Prophet Racing Ltd. | 7th |
| 17.7.1966 | DARM Norisring [SP] | 2 | Elva Mark II | Keith St. John | Radio London | ?th |
| 24.7.1966 | Lourenço Marques | | Elva Mark I | Bob Olthoff | | DNF |
| 24.7.1966 | DARM Hockenheim [GT/SP+1.6] | | Elva Mark II | Keith St. John | | 2nd |
| 31.7.1966 | USRRC Kent | 1 | Elva Mark II | Lothar Motschenbacher | | DNF |
| 31.7.1966 | USRRC Kent | 6 | Elva Mark II | Bud Morley | | DNF |
| 31.7.1966 | USRRC Kent | 10 | Elva Mark II | Chuck Parsons | Hilton Racing | 3rd |
| 31.7.1966 | USRRC Kent | 19 | Elva Mark II | Bill Amick | | DNF |
| 31.7.1966 | USRRC Kent | 62 | Elva Mark II | John Cannon | | 2nd |
| 31.7.1966 | USRRC Kent | 96 | Elva Mark I B | Mike Goth | Mike Goth Racing | DNF |
| 31.7.1966 | USRRC Kent | 97 | Elva Mark II | Charlie Hayes | | DNF |
| 6.8.1966 | SA SCC Kyalami RWT | | Elva Mark I | Bob Olthoff | | 1st |
| 13.8.1966 | Harewood Acres [S+1.6] | | Elva Mark II | Ludwig Heimrath | | 1st |
| 13.8.1966 | National Harewood Acres | | Elva Mark II | Ludwig Heimrath | | DNF |
| 14.8.1966 | Wills Trophy Croft | 6 | Elva Mark II B | Bruce McLaren | Bruce McLaren Motor Racing | DNF |
| 14.8.1966 | Wills Trophy Croft | 7 | Elva Mark II | Chris Amon | Bruce McLaren Motor Racing | DNF |
| 14.8.1966 | Wills Trophy Croft | 8 | Elva Mark II | David Prophet | David Prophet (Racing) | DNF |
| 20.8.1966 | H&DLLC Castle Combe [Sports] | 1 | Elva Mark II | David Prophet | David Prophet | DNA |
| 21.8.1966 | SA SCC Roy Hesketh | | Elva Mark I | Bob Olthoff | | DNF |
| 28.8.1966 | USRRC Mid-Ohio | 3 | Elva Mark II | Brooke Doran | M. Brooke Doran | 9th |
| 28.8.1966 | USRRC Mid-Ohio | 10 | Elva Mark II | Chuck Parsons | Hilton Racing Team | 2nd |
| 28.8.1966 | USRRC Mid-Ohio | 36 | Elva Mark I | Jim Roe | Joe B. Lucy | DNA |
| 28.8.1966 | USRRC Mid-Ohio | 38 | Elva Mark II | Dick Brown | Ecurie Green | 4th |
| 28.8.1966 | USRRC Mid-Ohio | 39 | Elva Mark II | Ludwig Heimrath | Ludwig Heimrath | DNF |
| 28.8.1966 | USRRC Mid-Ohio | 62 | Elva Mark II | John Cannon | John Cannon | DNF |
| 28.8.1966 | USRRC Mid-Ohio | 73 | Elva Mark I | Bud Gates | Bud Gates | DNF |
| 28.8.1966 | USRRC Mid-Ohio | 96 | Elva Mark II | Lothar Motschenbacher | Dan Blocker Racing | 1st |
| 28.8.1966 | USRRC Mid-Ohio | 97 | Elva Mark II | Charlie Hayes | Charles Hayes Racing | DNF |
| 29.8.1966 | Guards Trophy Brands Hatch | 8 | Elva Mark II B | Bruce McLaren | Bruce McLaren Motor Racing Ltd. | DNF |
| 29.8.1966 | Guards Trophy Brands Hatch | 9 | Elva Mark II | Chris Amon | Bruce McLaren Motor Racing Ltd. | 2nd |
| 29.8.1966 | Guards Trophy Brands Hatch | 10 | Elva Mark II | David Prophet | David Prophet Racing Ltd. | DNF |
| 29.8.1966 | Guards Trophy Brands Hatch | 11 | Elva Mark II | Frank Gardner | Alan Brown | 4th |
| 29.8.1966 | Guards Trophy Brands Hatch | 12 | Elva Mark II | Keith St. John | Radio London Racing | DNF |
| 29.8.1966 | Guards Trophy Brands Hatch | 14 | Elva Mark I | John Coundley | J. O. Coundley | DNA |
| 3.9.1966 | Indian Summer Trophy | | Elva Mark II B | John Cannon | | 1st |
| 3.9.1966 | SA SCC Killarney | | Elva Mark I | Bob Olthoff | | 6th |
| 4.9.1966 | 500 mile Road America | 3 | Elva Mark II | Doran / Haas | M. Brooke Doran | DNF |
| 4.9.1966 | Santa Barbara [CSR+DSR+ESR+FSR+GSR] | 5 | Elva Mark I | Jerry Entin | Entin Bros. Racing | DNA |
| 4.9.1966 | 500 mile Road America | 10 | Elva Mark II | Chuck Parsons | Randy Hilton | 1st |
| 4.9.1966 | 500 mile Road America | 61 | Elva Mark II | Courtney / Kronn | Ronald Courtney | DNA |
| 4.9.1966 | 500 mile Road America | 62 | Elva Mark II | John Cannon | John Cannon | DNA |
| 4.9.1966 | 500 mile Road America | 73 | Elva Mark I | Gates / Ensley | Bud Gates | DNF |
| 4.9.1966 | 500 mile Road America | 96 | Elva Mark II | Lothar Motschenbacher | Dan Blocker Motor Racing | 4th |
| 4.9.1966 | 500 mile Road America | 98 | Elva Mark II | Hayes / Jones | Charles Hayes Racing | 2nd |
| 11.9.1966 | Can-Am St. Jovite | 4 | Elva Mark II B | Bruce McLaren | Bruce McLaren Motor Racing Ltd. | 2nd |
| 11.9.1966 | Can-Am St. Jovite | 10 | Elva Mark II | Chuck Parsons | Hilton Racing Team | 6th |
| 11.9.1966 | Can-Am St. Jovite | 14 | Elva Mark II | Bob Bondurant | Allan Brown Racing | DNA |
| 11.9.1966 | Can-Am St. Jovite | 18 | Elva Mark II | Peter Lerch | Lynx Racing Team | DNF |
| 11.9.1966 | Can-Am St. Jovite | 39 | Elva Mark II | Ludwig Heimrath | Ludwig Heimrath | 12th |
| 11.9.1966 | Can-Am St. Jovite | 62 | Elva Mark II | John Cannon | Ecurie Carabine | 4th |
| 11.9.1966 | Can-Am St. Jovite | 86 | Goth Special | Mike Goth | Mike Goth Racing | DNA |
| 11.9.1966 | Can-Am St. Jovite | 88 | Elva Mark II | Masten Gregory | Pacesetter Homes | DNF |
| 11.9.1966 | Can-Am St. Jovite | 98 | Elva Mark II | Charlie Hayes | Charlie Hayes Motor Racing | DNF |
| 11.9.1966 | Can-Am St. Jovite | | Elva Mark I | Jim Roe | | DNA |