William Doubleday
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Canadian op | 07/15/2006 | 1831 | Canada |
| Canadian op | 07/09/2005 | 1826 | Canada |
| Canadian op | 07/10/2004 | 1172 | Canada |
| Ontario op | 05/22/2004 | 2000 | Canada |
Most Played Openings as White
| ECO | Opening | Games |
| E46 | Nimzo-Indian, 4.e3 O-O | 2 games |
| A90 | Dutch defence | 2 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 1 games |
| A85 | Dutch with c4 & Nc3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B51 | Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack | 2 games |
| B66 | Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 | 1 games |
| B65 | Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4 | 1 games |
| D44 | Queen's Gambit Declined semi-Slav, 5.Bg5 dc | 1 games |


Canada