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Individual Calculations April 2021 |
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| Dalkowski, Rafal Total change: 17.15 | |   |
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| 236th YMCA Winter 2021-A | Warszawa | POL | 2021-01-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1876 | 1847 | 6.50 | 9 | 2.37 | 35 | 82.95 | |
|  Poniewierski, Piotr | | | 1839 | POL | 1.00 | 1 | 0.49 | 35 | 17.15 | |  Potocki, Karol | | | 1882 | POL | 1.00 | 1 | 0.55 | 35 | 19.25 | | | Bujalski, Mateusz | | | 1895 | POL | 1.00 | 1 | 0.57 | 35 | 19.95 | | | Ossolinski, Ziemowit | | | 1887 | POL | 0.50 | 1 | 0.06 | 35 | 2.10 | | | Jedrusik, Adam | | | 1874 | POL | 1.00 | 1 | 0.54 | 35 | 18.90 | | | Moskwinski, Marek | | | 1905 | POL | 0.50 | 1 | 0.08 | 35 | 2.80 | | | Rzeszowski, Dominik | | | 1863 | POL | 0.50 | 1 | 0.02 | 35 | 0.70 | | | Polak, Michal | | | 1890 | POL | 1.00 | 1 | 0.56 | 35 | 19.60 | | | Zdybel, Przemyslaw | | | 1848 | POL | 0.00 | 1 | -0.50 | 35 | -17.50 | |
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 |
| 1848 | 1989 | 1.00 | 2 | -0.26 | 35 | -9.10 | |
| | Oblakowski, Oskar | | | 1589 * | POL | 1.00 | 1 | 0.08 | 35 | 2.80 | | | Maciaga, Marcin | | | 2107 | POL | 0.00 | 1 | -0.34 | 35 | -11.90 | | | * 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) | | | | Indywidualne Mistrzostwa Polski Juniorow C18 2021 | Szklarska Poreba | POL | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1942 | 1989 | 3.50 | 9 | -1.62 | 35 | -56.70 | |
| | Redzisz, Michal | f | | 2319 | POL | 0.50 | 1 | 0.38 | 35 | 13.30 | | | Marciniak, Leonard | | | 1779 | POL | 1.00 | 1 | 0.23 | 35 | 8.05 | | | Baum, Jonasz | m | | 2262 | POL | 0.00 | 1 | -0.17 | 35 | -5.95 | | | Jedrusik, Adam | | | 1821 | POL | 0.00 | 1 | -0.72 | 35 | -25.20 | | | Distel, Pawel | | | 1890 | POL | 0.50 | 1 | -0.14 | 35 | -4.90 | | | Gardian, Adam | | | 1829 | POL | 1.00 | 1 | 0.29 | 35 | 10.15 | | | Derylo, Kamil | | | 2015 | POL | 0.00 | 1 | -0.46 | 35 | -16.10 | | | Haliniak, Wojciech | | | 1802 | POL | 0.50 | 1 | -0.24 | 35 | -8.40 | | | Ciborowski, Konrad Jr | | | 1762 | POL | 0.00 | 1 | -0.79 | 35 | -27.65 | |
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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