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Individual Calculations July 2009 |
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| Delekta, Filip Total change: -11.75 | |   |
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| POL Boys Championship U-12 | Leba | POL | 2009-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1729 | 1727 | 3.00 | 10 | -1.98 | 25 | -49.50 | |
|  Snihur, Piotr | | | 1720 | POL | 0.00 | 1 | -0.51 | 25 | -12.75 | |  Kowalczyk, Mariusz | | | 1710 | POL | 1.00 | 1 | 0.48 | 25 | 12.00 | | | Kruszynski, Krzysztof | | | 1700 | POL | 1.00 | 1 | 0.46 | 25 | 11.50 | | | Tomaszewski, Kacper | | | 1718 | POL | 1.00 | 1 | 0.49 | 25 | 12.25 | | | Zebracki, Tomasz | | | 1795 | POL | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Karwowski, Kacper | | | 1781 | POL | 0.00 | 1 | -0.42 | 25 | -10.50 | | | Lebiedowicz, Borys | | | 1770 | POL | 0.00 | 1 | -0.44 | 25 | -11.00 | | | Ulanowski, Karol | | | 1759 | POL | 0.00 | 1 | -0.46 | 25 | -11.50 | | | Czerw, Dawid | | | 1675 | POL | 0.00 | 1 | -0.57 | 25 | -14.25 | | | Jozkow, Kacper | | | 1657 | POL | 0.00 | 1 | -0.60 | 25 | -15.00 | |
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) | | | | 17th Lasker's Memorial - open B | Barlinek | POL | 2009-05-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2040 | 1727 | 2.00 | 4 | 1.45 | 25 | 36.25 | |
| | Szneider, Kazimierz | | | 2024 | POL | 1.00 | 1 | 0.85 | 25 | 21.25 | | | Majkowski, Andrzej | | | 2001 | POL | 1.00 | 1 | 0.83 | 25 | 20.75 | | | Bartnicki, Pawel | | | 2056 | POL | 0.00 | 1 | -0.12 | 25 | -3.00 | | | Szczesniak, Andrzej | | | 2077 | POL | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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) | | | | Grand Prix Gorzowa Wlkp. - maj 2009 | Gorzow | POL | 2009-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1748 | 1727 | 2.50 | 5 | 0.06 | 25 | 1.50 | |
| | Demidowicz, Maria | | | 2077 | POL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Gromala, Radoslaw | | | 1570 | POL | 1.00 | 1 | 0.29 | 25 | 7.25 | | | Delekta, Anna | | | 1691 | POL | 0.50 | 1 | -0.05 | 25 | -1.25 | | | Koitka, Jakub | | | 1736 | POL | 0.00 | 1 | -0.49 | 25 | -12.25 | | | Wittig, Zenon | | | 1666 | POL | 1.00 | 1 | 0.42 | 25 | 10.50 | |
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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