Gerardus C Van Rooijen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Guernsey Holiday op | 10/16/2005 | 1297 | Guernsey |
| Guernsey Holiday | 10/19/2003 | 611 | Guernsey |
Most Played Openings as White
| ECO | Opening | Games |
| A41 | Queen's Pawn | 1 games |
| A00 | Polish (Sokolsky) opening | 1 games |
| E24 | Nimzo-Indian, Saemisch variation | 1 games |
| D10 | Queen's Gambit Declined Slav defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B21 | Sicilian, Grand Prix attack | 2 games |
| B84 | Sicilian, Scheveningen (Paulsen), classical variation | 1 games |
| B80 | Sicilian, Scheveningen variation | 1 games |
| D60 | Queen's Gambit Declined, Orthodox defence | 1 games |


Guernsey