Duncan MacKay
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| ARG-ch sf | ??/??/1966 | 0 | Argentina |
Most Played Openings as White
| ECO | Opening | Games |
| D02 | Queen's pawn game | 1 games |
| B21 | Sicilian, Grand Prix attack | 1 games |
| C18 | French, Winawer, advance variation | 1 games |
| C10 | French, Paulsen variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 2 games |
| A36 | English, symmetrical variation | 1 games |
| B32 | Sicilian defence | 1 games |


Argentina