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Individual Calculations April 2021 |
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| Kozak, Jan Total change: 35.80 | |   |
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| XI Otwarte Mistrzostwa Garnizonu Warszawa w szachach klasycznych 2021 Round 1-7 | Warszawa | POL | 2021-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1502 | 1263 | 3.00 | 6 | 1.53 | 20 | 30.60 | |
|  Basiaga, Sebastian | | | 1663 * | POL | 0.50 | 1 | 0.42 | 20 | 8.40 | |  Janczylik, Tomasz | | | 1153 | POL | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Leszczynski, Kamil | | | 1634 | POL | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Grzenkowicz, Lukasz | | | 1638 | POL | 0.50 | 1 | 0.41 | 20 | 8.20 | | | Budrewicz, Henryk | | | 1308 | POL | 0.00 | 1 | -0.44 | 20 | -8.80 | | | Jarmolowski, Tadeusz | | | 1618 | POL | 1.00 | 1 | 0.89 | 20 | 17.80 | | | * 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) | | | | Otwarta Liga Mazowiecka 2021 Round 7-10 | mazowieckie | POL | 2021-03-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1191 | 1279 | 1.50 | 2 | 0.26 | 20 | 5.20 | |
| | Kacki, Stanislaw | | | 1233 | POL | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Kwiatkowski, Szymon | | | 1148 | POL | 0.50 | 1 | -0.18 | 20 | -3.60 | |
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) | | |
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