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Individual Calculations January 2009 |
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| Lach, Piotr Total change: 16.35 | |   |
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| Mistrzostwa Makroregionu Juniorow w Szachach MP-PK C-18 | Bartkowa | POL | 2008-09-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1791 | 2048 | 7.00 | 8 | 0.62 | 15 | 9.30 | |
|  Wasik, Piotr | | | 1973 | POL | 1.00 | 1 | 0.40 | 15 | 6.00 | |  Ziemniak, Grzegorz | | | 1794 | POL | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Bobrowski, Damian | | | 1698 | POL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Bugajski, Mateusz | | | 1698 | POL | 0.50 | 1 | -0.39 | 15 | -5.85 | | | Wasik, Piotr | | | 1973 | POL | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Ziemniak, Grzegorz | | | 1794 | POL | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Bobrowski, Damian | | | 1698 | POL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Bugajski, Mateusz | | | 1698 | POL | 1.00 | 1 | 0.11 | 15 | 1.65 | |
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) | | | | DMP Ma³opolska III liga 2008 | Krakow | POL | 2008-10-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1882 | 2099 | 3.50 | 4 | 0.47 | 15 | 7.05 | |
| | Marzec, Karol | | | 1981 | POL | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Kowalewski, Wladyslaw | | | 1760 | POL | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Deren, Marcin | | | 2019 | POL | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Jackowski, Dariusz | | | 1767 | POL | 1.00 | 1 | 0.12 | 15 | 1.80 | |
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) | | |
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