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Individual Calculations April 2018 |
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| Kosny, Marek Total change: 38.60 | |   |
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| Druzynowe Mistrzostwa Mazowsza 2017-2018 | Warszawa | POL | 2017-12-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 1852 | 3.00 | 6 | -0.10 | 20 | -2.00 | |
|  Szwaj, Jacek | | | 1897 | POL | 0.00 | 1 | -0.44 | 20 | -8.80 | |  Kaczmarska, Joanna | | | 2037 | POL | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Lukasik, Adam | | | 1949 | POL | 0.50 | 1 | 0.13 | 20 | 2.60 | | | Sacharewicz, Krzysztof | | | 1795 | POL | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Fedorczyk, Krzysztof | | | 1786 | POL | 1.00 | 1 | 0.41 | 20 | 8.20 | | | Potkanski, Michal | | | 1548 | POL | 0.50 | 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) | | | | 194th YMCA Winter 2018-A | Warszawa | POL | 2018-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1964 | 1852 | 5.50 | 10 | 1.95 | 20 | 39.00 | |
| | Chomiuk, Lukasz | | | 1809 | POL | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Delega, Tomasz | c | | 1940 | POL | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Liberadzki, Slawomir | | | 2042 | POL | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Kaminski, Jan | | | 1838 | POL | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Kasperkiewicz, Pawel | | | 2064 | POL | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Borowy, Cezary | | | 2027 | POL | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Choroszej, Aleksander | | | 2073 | POL | 1.00 | 1 | 0.78 | 20 | 15.60 | | | Delega, Tomasz | c | | 1940 | POL | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Choroszej, Aleksander | | | 2073 | POL | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Kaminski, Jan | | | 1838 | POL | 1.00 | 1 | 0.48 | 20 | 9.60 | |
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) | | | | II Mistrzostwa Polski Seniorek i Seniorow w szachach | Ustron-Jaszowiec | POL | 2018-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1763 | 1852 | 5.50 | 9 | 0.08 | 20 | 1.60 | |
| | Balcerczak, Ewa | | | 1452 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Muc, Zbigniew | | | 1631 | POL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Kot, Jerzy | f | | 1993 | POL | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Olszewski, Jerzy | | | 1567 | POL | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Marks, Jacek | | | 2084 | POL | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Pietrzak, Janusz | | | 2021 | POL | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Plesiuk, Jan | | | 1730 | POL | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Rychlik, Bogdan | | | 1632 | POL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Solek, Zenon | | | 1756 | POL | 1.00 | 1 | 0.37 | 20 | 7.40 | | | * 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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