Mark H Horton
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Islington op | 12/15/1972 | 1796 | United Kingdom |
| BCF-ch | 08/??/1967 | 0 | United Kingdom |
| BCF-ch | 08/08/1966 | 0 | United Kingdom |
Most Played Openings as White
| ECO | Opening | Games |
| C47 | Four knights, Scotch variation | 2 games |
| C77 | Ruy Lopez, Morphy defence | 1 games |
| C04 | French, Tarrasch, Guimard main line | 1 games |
| E17 | Queen's Indian, 5.Bg2 Be7 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B26 | Sicilian, closed, 6.Be3 | 2 games |
| B07 | Pirc defence | 1 games |
| A48 | King's Indian, East Indian defence | 1 games |
| B33 | Sicilian defence | 1 games |


United Kingdom