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Individual Calculations December 2019 |
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| Kostecki, Samuel Total change: -11.20 | |   |
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| IV Wielkopolska Liga Seniorow grupa A 2019/2020 Round 1-2 | Poznan | POL | 2019-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1454 | 1640 | 1.50 | 2 | 0.07 | 20 | 1.40 | |
|  Stachowiak, Bruno | | | 1295 | POL | 0.50 | 1 | -0.39 | 20 | -7.80 | |  Pawlicki, Dariusz | | | 1613 | POL | 1.00 | 1 | 0.46 | 20 | 9.20 | |
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) | | | | Konin V Masters FIDE | Konin | POL | 2019-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1593 | 1640 | 2.50 | 5 | -0.22 | 20 | -4.40 | |
| | Mazurkiewicz, Krzysztof | | | 1256 | POL | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Leszner, Liliana | | wm | 1919 | POL | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Jaloszynski, Ryszard | | | 1290 | POL | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Smagalski, Slawomir | | | 1947 | POL | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Krupinski, Ryszard | | | 1551 | POL | 0.50 | 1 | -0.12 | 20 | -2.40 | |
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) | | | | Wielkopolska III Liga Szachowa 2019/2020 Round 1-3 | Poznan | POL | 2019-11-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1704 | 1640 | 0.00 | 1 | -0.41 | 20 | -8.20 | |
| | Nowaczyk, Mikolaj | | | 1704 | POL | 0.00 | 1 | -0.41 | 20 | -8.20 | |
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) | | |
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