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Individual Calculations April 2023 |
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| Helis, Tadeusz Total change: 5.20 | |   |
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| Druzynowe Mistrzostwa Slaska Seniorow - Ekstraliga 2023 Round 7-9 | Chorzow | POL | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2008 | 2093 | 1.50 | 2 | 0.26 | 20 | 5.20 | |
|  Kaminski, Piotr | | | 2024 | POL | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Sroka, Janusz | | | 1991 | POL | 1.00 | 1 | 0.36 | 20 | 7.20 | |
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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