Sergio Fernandez Sierra
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Gijon op | 04/??/2002 | 0 | Spain |
| Asturias-ch Primera B | 02/17/2001 | 24 | Spain |
| Asturias-ch Primera B | 02/12/2000 | 20 | Spain |
| Asturias-ch U18 Absoluto | 12/23/1999 | 181 | Spain |
Most Played Openings as White
| ECO | Opening | Games |
| A01 | Nimzovich-Larsen attack | 9 games |
| A13 | English opening | 2 games |
| A06 | Reti opening | 1 games |
| B20 | Sicilian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C01 | French, exchange variation | 3 games |
| D26 | Queen's Gambit Accepted, 4...e6 | 2 games |
| C02 | French, advance variation | 2 games |
| C16 | French, Winawer, advance variation | 1 games |


Spain