Roger Patterson
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Gibraltar Masters | 01/25/2005 | 1969 | United Kingdom |
| Paris-ch opA | 07/03/2004 | 2101 | France |
| Guelph op | 08/07/2002 | 2018 | Canada |
| Canada op | 07/13/2002 | 917 | Canada |
Most Played Openings as White
| ECO | Opening | Games |
| B93 | Sicilian, Najdorf, 6.f4 | 4 games |
| C18 | French, Winawer, advance variation | 2 games |
| C97 | Ruy Lopez, closed, Chigorin defence | 2 games |
| B15 | Caro-Kann defence | 2 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B80 | Sicilian, Scheveningen variation | 3 games |
| B81 | Sicilian, Scheveningen, Keres attack | 3 games |
| E52 | Nimzo-Indian, 4.e3, main line with ...b6 | 2 games |
| C00 | French defence | 2 games |
Canada
Male
FIDE ID:

United Kingdom
France