Mateo Arcos
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Pan American-ch U10 | 05/24/2002 | 57 | Argentina |
| Pan American-ch U10 | 05/29/2001 | 0 | Argentina |
| URU-ch prel Azul | 02/??/2001 | 370 | Uruguay |
| Pan American-ch U10 | ??/??/2000 | 0 | Brazil |
Most Played Openings as White
| ECO | Opening | Games |
| C50 | King's pawn game | 5 games |
| B82 | Sicilian, Scheveningen, 6.f4 | 2 games |
| C10 | French, Paulsen variation | 2 games |
| B92 | Sicilian, Najdorf, Opovcensky variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C56 | Two knights defence | 2 games |
| C71 | Ruy Lopez, modern Steinitz defence | 1 games |
| A08 | Reti, King's Indian attack | 1 games |
| C21 | Centre game | 1 games |


Argentina
Uruguay
Brazil