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Individual Calculations April 2017 |
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| Ciechonski, Piotr Total change: 27.80 | |   |
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| Druzynowe Mistrzostwa Wojewodztwa Swietokrzyskiego'2017 | Kostomloty | POL | 2017-02-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1726 | 1647 | 2.50 | 4 | 0.91 | 20 | 18.20 | |
|  Pilka, Kazimierz | | | 1433 | POL | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Stefaniak, Tomasz | | | 1765 | POL | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Posuniak, Weronika | | | 1803 | POL | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Choina, Michal | | | 1901 | POL | 1.00 | 1 | 0.81 | 20 | 16.20 | |
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) | | | | Mistrzostwa Nauczycieli, Pracownikow Oswiaty i Wychowankow Regionu Radomskiego w Szachach - Grupa A | Radom | POL | 2017-03-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1885 | 1723 | 2.00 | 4 | 0.80 | 20 | 16.00 | |
| | Skorza, Konrad | | | 1858 | POL | 0.00 | 1 | -0.32 | 20 | -6.40 | |  Pomagalski, Marcin | | | 1801 | POL | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Mlynarski, Kamil | | | 1815 | POL | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Cwiek, Mariusz | | | 2067 | POL | 1.00 | 1 | 0.88 | 20 | 17.60 | |
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) | | | | XXXIX Weekendowy Turniej o Puchar Prezesa MZSzach | Warszawa | POL | 2017-03-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1663 | 1723 | 2.50 | 5 | -0.32 | 20 | -6.40 | |
| | Holubczat, Maciej | | | 1323 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Davidsen, Niels Chr. | | | 1985 | DEN | 0.50 | 1 | 0.32 | 20 | 6.40 | | | Cap, Piotr | | | 1747 | POL | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Fiszer, Bartosz | c | | 1651 | POL | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Zolkiewski, Jakub | | | 1610 | POL | 0.00 | 1 | -0.65 | 20 | -13.00 | | | * 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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