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Individual Calculations February 2020 |
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| Grzegorski, Michal Total change: -20.00 | |   |
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| Wielkopolska III Liga Szachowa 2019/2020 Round 6-7 | Poznan | POL | 2020-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1745 | 1737 | 1.00 | 2 | 0.03 | 40 | 1.20 | |
|  Tomczykowski, Jaroslaw | | | 1792 | POL | 1.00 | 1 | 0.58 | 40 | 23.20 | |  Grochowski, Michal | | | 1698 | POL | 0.00 | 1 | -0.55 | 40 | -22.00 | |
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) | | | | III Wielkopolska Liga Juniorów 2020 Round 1-4 | Ostrow Wielkopolski | POL | 2020-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1504 | 1737 | 2.50 | 4 | -0.53 | 40 | -21.20 | |
| | Szczepanski, Grzegorz | | | 1475 | POL | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Cichon, Ludwik | | | 1337 * | POL | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Nowak, Roksana | | | 1406 | POL | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Kukorowski, Jan | | | 1799 | POL | 0.00 | 1 | -0.41 | 40 | -16.40 | | | * 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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