| Player data |
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 | SNo | 38 | FIDE | 1562 | Local | 2000 |
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| Name | PROKOPIUK, Jakub | Fed | POL | R.ChessArbiter | 0 |
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| Club | KS GWIAZDA Bydgoszcz | Title | I | Local ID | PL-83940 |
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| Code | 21041539 | Sex | M | Birthday | 2010 |
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| Number of rated opponents: | 9 | Score vs. rated opponents: | 3.5 |
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| Average rating: | 1568 | Rating Change: | -0.99 |
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