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Individual Calculations January 2020 |
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| Poniewierski, Piotr Total change: -37.80 | |   |
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| 220th YMCA Autumn 2019-A | Warszawa | POL | 2019-09-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 1885 | 5.50 | 11 | 0.21 | 20 | 4.20 | |
|  Moskwinski, Marek | | | 1940 | POL | 0.00 | 1 | -0.42 | 20 | -8.40 | |  Choroszej, Aleksander | | | 2054 | POL | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Staniak, Mariusz | | | 1808 | POL | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Kosny, Marek | | | 1861 | POL | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Derylo, Kamil | | | 2020 | POL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Kasperkiewicz, Pawel | | | 1869 | POL | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Matyszkiewicz, Wiktor | | | 1844 | POL | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Safanowski, Tomasz | | | 1841 | POL | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Omar, Mohamed | | | 1864 | EGY | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Liberadzki, Slawomir | | | 1983 | POL | 0.50 | 1 | 0.13 | 20 | 2.60 | | | Koziol, Pawel | | | 1821 | POL | 1.00 | 1 | 0.41 | 20 | 8.20 | |
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) | | | | IV Ursynowski Festiwal Szachowy - Grupa FIDE | Warszawa | POL | 2019-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1475 | 1875 | 2.50 | 5 | -2.10 | 20 | -42.00 | |
| | Seklecki, Jakub | | | 1475 * | POL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Skowron, Dawid | | | 1475 * | POL | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Wolny, Dawid | | | 1475 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kozera, Dawid | | | 1475 * | POL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Rydel, Kamil | | | 1475 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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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