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Individual Calculations July 2009 |
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| Kostowski, Andrzej Total change: -36.45 | |   |
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| Druzynowe Mistrzostwa Wojewodztwa Slaskiego LOS 2009 | Slask | POL | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1842 | 1846 | 2.00 | 5 | -0.55 | 15 | -8.25 | |
|  Majczyna, Andrzej | | | 2076 | POL | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Student, Patryk | | | 1798 | POL | 0.00 | 1 | -0.57 | 15 | -8.55 | |  Plotecki, Jan | | | 1902 | POL | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Faron, Rafal | | | 1707 | POL | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Kucharski, Wojciech | | | 1726 | POL | 1.00 | 1 | 0.34 | 15 | 5.10 | |
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) | | | | 45 Otwarte Mistrzostwa Chorzowa | Chorzow | POL | 2009-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1860 | 1846 | 1.50 | 7 | -1.88 | 15 | -28.20 | |
| | Janiszewski, Maciej | | | 2093 | POL | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Widera, Jan | | | 2030 | POL | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Jablonski, Lechoslaw | | | 1654 | POL | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Mandla, Maciej | | | 1690 | POL | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Sobek, Piotr | | | 1866 | POL | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Skrzyczek, Tomasz | | | 2027 | POL | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Klama, Andrzej | | | 1663 | POL | 0.00 | 1 | -0.74 | 15 | -11.10 | |
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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