Colin A Costello
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Gibraltar Masters | 01/25/2011 | 2149 | United Kingdom |
| Paignton op | 09/02/2007 | 2008 | United Kingdom |
| Dresden ZMD op | 07/21/2007 | 2076 | Germany |
| Maastricht Limburg op | 05/25/2007 | 1638 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| A26 | English, closed system | 24 games |
| A21 | English opening | 10 games |
| A29 | English, four knights, kingside fianchetto | 10 games |
| A12 | English, Caro-Kann defensive system | 6 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D36 | Queen's Gambit Declined, exchange, positional line, 6.Qc2 | 10 games |
| C02 | French, advance variation | 10 games |
| C18 | French, Winawer, advance variation | 8 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 7 games |
United Kingdom
Male
FIDE ID:

Germany
Netherlands