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Individual Calculations February 2023 |
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| Zbrzeski, Piotr Total change: 12.60 | |   |
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| Druzynowe Mistrzostwa Mazowsza 2023 Round 1-4 | woj. mazowieckie | POL | 2023-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1919 | 1612 | 1.00 | 4 | 0.29 | 20 | 5.80 | |
|  Hryszkiewicz, Michal | | | 1815 | POL | 0.00 | 1 | -0.24 | 20 | -4.80 | |  Choroszej, Aleksander | | | 2036 | POL | 0.50 | 1 | 0.43 | 20 | 8.60 | | | Praczukowski, Stanislaw | | | 2110 | POL | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Sentowski, Sebastian | | | 1715 | POL | 0.50 | 1 | 0.14 | 20 | 2.80 | |
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) | | | | XIII Otwarte Mistrzostwa Garnizonu Warszawa w szachach klasycznych 2023 Round 1-3 | Warszawa | POL | 2023-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1246 | 1612 | 3.00 | 3 | 0.34 | 20 | 6.80 | |
| | Dabrowski, Dominik | | | 1212 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Tomczyk, Ryszard | | | 1145 | POL | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Kwiek, Janusz | | | 1382 | POL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | * 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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