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Individual Calculations February 2023 |
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| Durzynski, Jan Total change: -89.20 | |   |
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| Szkolne Indywidualne Mistrzostwa Polski chlopcy C13 C15 C17 | Pokrzywna | POL | 2023-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1515 | 1549 | 2.50 | 6 | -0.81 | 40 | -32.40 | |
|  Galla, Wiktor | | | 1363 | POL | 0.50 | 1 | -0.24 | 40 | -9.60 | |  Rosa, Antoni | | | 1621 | POL | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Boryna, Szymon | | | 1525 | POL | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Kaszuba, Michal | | | 1345 | POL | 0.00 | 1 | -0.76 | 40 | -30.40 | | | Mioduszewski, Szymon | | | 1369 | POL | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Musial, Igor | | | 1864 | POL | 0.50 | 1 | 0.36 | 40 | 14.40 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | XI MIEDZYNARODOWY FESTIWAL SZACHOWY GWIAZDA POLNOCY - OPEN | Jastrzebia Gora | POL | 2023-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1372 | 1549 | 5.00 | 9 | -1.42 | 40 | -56.80 | |
| | Malecki, Karol | | | 1149 * | POL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Witczak, Borys | | | 1886 | POL | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Konkol, Sandra | | | 1297 | POL | 0.00 | 1 | -0.81 | 40 | -32.40 | | | Sliwonik, Robert | | | 1208 | POL | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Ejsymont, Blanka | | | 1353 | POL | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Wiosna, Krzysztof | | | 1267 | POL | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Wolski, Ernest | | | 1318 | POL | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Paluszek, Jan | | | 1392 | POL | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Hartlinski, Tomasz | | | 1475 | POL | 0.50 | 1 | -0.10 | 40 | -4.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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