Witold Balcerowski
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Wch Seniors | 09/11/2000 | 1307 | Poland |
| POL-chT 2nd div North | ??/??/1999 | 1658 | Poland |
| Lodz-ch | ??/??/1998 | 1502 | Poland |
| Lodz-ch | ??/??/1997 | 1469 | Poland |
Most Played Openings as White
| ECO | Opening | Games |
| D94 | Gruenfeld, 5.e3 | 9 games |
| E16 | Queen's Indian, Capablanca variation | 8 games |
| E11 | Bogo-Indian defence | 8 games |
| D14 | Queen's Gambit Declined Slav, exchange variation, 6.Bf4 Bf5 | 6 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B07 | Pirc defence | 29 games |
| B09 | Pirc, Austrian attack | 28 games |
| B08 | Pirc, classical (two knights) system | 21 games |
| B06 | Robatsch (modern) defence | 15 games |


Poland