Sergey Prokofiev
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Paris sim | ??/??/1933 | 0 | France |
| Moscow blind | ??/??/1914 | 0 | Russian Federation |
| St Petersburg casual | 01/??/1914 | 0 | Russian Federation |
Most Played Openings as White
| ECO | Opening | Games |
Most Played Openings as Black
| ECO | Opening | Games |
| C44 | King's pawn game | 1 games |
| D02 | Queen's pawn game | 1 games |


France
Russian Federation