Marek Biernacki
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| Player ID | 6872 |
| First Name | Marek |
| Last Name | Biernacki |
| Sex | M |
| User ID | 0 |
| DOB | **** |
| Player lists | Sutton Coldfield |
| Club | Sutton Coldfield (2SCD) |
| Local Rating | 0 |
| Local Rapid Rating | 0 |
| FIDE Code | 0 |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 279613C |
| Membership Number (from rating list) | ME009655 |
| Membership Category | None |