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Individual Calculations April 2023 |
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| Kozlowska, Marzena Total change: -2.60 | |   |
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| Mistrzostwa LKS Piast Srem 2023 Round 2-5 | Srem | POL | 2023-03-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1814 | 1898 | 2.00 | 4 | -0.44 | 20 | -8.80 | |
|  Kolinski, Stanislaw | | | 1680 | POL | 1.00 | 1 | 0.22 | 20 | 4.40 | |  Simon, Marek | | | 1863 | POL | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Wojtkowski, Pawel | | | 1809 | POL | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Skrzypczak, Michal | | | 1905 | POL | 0.00 | 1 | -0.49 | 20 | -9.80 | |
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) | | | | III Wielkopolska Liga Seniorow 2023 Round 1-3 | Poznan | POL | 2023-03-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1523 | 1898 | 3.00 | 3 | 0.31 | 20 | 6.20 | |
| | Lazniewska, Zofia | | | 1620 | POL | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Andrzejewska, Maja | | | 1498 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Biniak, Zuzanna | | | 1451 | POL | 1.00 | 1 | 0.06 | 20 | 1.20 | | | * 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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