| Player data |
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 | SNo | 7 | FIDE | 1972 | Local | 2000 |
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| Name | RATAJCZAK, Hubert | Fed | POL | R.ChessArbiter | 0 |
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| Club | KS GWIAZDA Bydgoszcz | Title | I | Local ID | PL-72714 |
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| Code | 21013853 | Sex | M | Birthday | 2009 |
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| Number of rated opponents: | 9 | Score vs. rated opponents: | 6.0 |
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| Average rating: | 1803 | Rating Change: | -0.36 |
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