Sergei Y Nachev
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| RUS-Cup | ??/??/2000 | 2318 | Russian Federation |
| Aratovsky mem | 12/??/1999 | 1484 | Russian Federation |
| RUS-Cup | ??/??/1999 | 2060 | Russian Federation |
| Voronezh op 3rd | 06/??/1999 | 1634 | Russian Federation |
Most Played Openings as White
| ECO | Opening | Games |
| E32 | Nimzo-Indian, classical variation | 3 games |
| D10 | Queen's Gambit Declined Slav defence | 2 games |
| A03 | Bird's opening | 2 games |
| D36 | Queen's Gambit Declined, exchange, positional line, 6.Qc2 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D30 | Queen's gambit declined | 1 games |
| D29 | Queen's Gambit Accepted, classical, 8...Bb7 | 1 games |
| D10 | Queen's Gambit Declined Slav defence | 1 games |
| C47 | Four knights, Scotch variation | 1 games |


Russian Federation