John Cummins
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 39th Olympiad Men | 09/21/2010 | 2055 | Russian Federation |
| Guernsey Open | 10/19/2008 | 1869 | Guernsey |
| Guernsey op 31st | 10/16/2005 | 1665 | Guernsey |
| Calvia ol (Men) | 10/15/2004 | 2143 | Spain |
Most Played Openings as White
| ECO | Opening | Games |
| B23 | Sicilian, closed | 4 games |
| B06 | Robatsch (modern) defence | 2 games |
| B12 | Caro-Kann defence | 2 games |
| B17 | Caro-Kann, Steinitz variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B28 | Sicilian, O'Kelly variation | 4 games |
| C50 | King's pawn game | 3 games |
| A45 | Queen's pawn game | 2 games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 2 games |


Russian Federation
Guernsey
Spain