Marcos Arruda
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Rio de Janeiro Fexerj Masters | 03/08/2005 | 1974 | Brazil |
| Rio de Janeiro-ch Estadual | 01/??/2001 | 2142 | Brazil |
Most Played Openings as White
| ECO | Opening | Games |
| A25 | English, Sicilian reversed | 2 games |
| A36 | English, symmetrical variation | 2 games |
| E01 | Catalan, closed | 1 games |
| B13 | Caro-Kann, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B04 | Alekhine's defence, modern variation | 1 games |
| C30 | King's gambit | 1 games |
| D02 | Queen's pawn game | 1 games |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...e6 | 1 games |


Brazil