Arwin J Castillo
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| USA-chT Amateur East | 03/19/2005 | 768 | United States |
| USA-chT Amateur East | 02/14/2004 | 650 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| B80 | Sicilian, Scheveningen variation | 1 games |
| C45 | Scotch game | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |


United States