J. Mayorga
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Wch U20 | 09/??/1995 | 1856 | Germany |
| Wch U20 | 09/??/1994 | 1937 | Brazil |
Most Played Openings as White
| ECO | Opening | Games |
| A04 | Reti opening | 3 games |
| A33 | English, symmetrical variation | 1 games |
| C19 | French, Winawer, advance, 6...Ne7 | 1 games |
| B34 | Sicilian, accelerated fianchetto, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C56 | Two knights defence | 3 games |
| C54 | Giuoco Piano | 1 games |
| C77 | Ruy Lopez, Morphy defence | 1 games |
| A74 | Benoni, classical, 9...a6, 10.a4 | 1 games |


Germany
Brazil