| Player data |
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 | SNo | 17 | FIDE | 1934 | Local | 2000 |
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| Name | Wielosz, Jaroslaw | Fed | POL | R.ChessArbiter | 2023 |
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| Club | WKSz GANT HETMAN | Title | I | Local ID | PL-147 |
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| Code | 1125842 | Sex | M | Birthday | 1968-05-01 |
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| Number of rated opponents: | 9 | Score vs. rated opponents: | 5.5 |
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| Average rating: | 1896 | Rating Change: | 0.55 |
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