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Individual Calculations April 2023 |
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| Zbrzeski, Piotr Total change: -3.20 | |   |
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| XIII Otwarte Mistrzostwa Garnizonu Warszawa w szachach klasycznych 2023 Round 8 | Warszawa | POL | 2023-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1625 | 0.00 | 1 | -0.28 | 20 | -5.60 | |
|  Starczewska, Malgorzata | | | 1790 | POL | 0.00 | 1 | -0.28 | 20 | -5.60 | |
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) | | | | Druzynowe Mistrzostwa Mazowsza 2023 Round 7-10 | woj. mazowieckie | POL | 2023-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2185 | 1653 | 0.50 | 3 | 0.34 | 20 | 6.80 | |
| | Chomczyk, Marek | | | 2362 | POL | 0.00 | 1 | -0.01 | 20 | -0.20 | |  Ciechanski, Jacenty | c | | 1986 | POL | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Pazderski, Ziemowit | | | 2207 | POL | 0.00 | 1 | -0.03 | 20 | -0.60 | |
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) | | | | XIII Otwarte Mistrzostwa Garnizonu Warszawa w szachach klasycznych 2023 Round 9-11 | Warszawa | POL | 2023-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1594 | 1653 | 1.50 | 3 | -0.22 | 20 | -4.40 | |
| | Sypula, Krzysztof | | | 1679 | POL | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Wilczynski, Adam | | | 1466 | POL | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Urbaniak, Karol | | | 1638 | POL | 0.00 | 1 | -0.52 | 20 | -10.40 | |
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) | | |
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