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Individual Calculations September 2009 |
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| Rudenkov, Sergei Total change: 27.45 | |   |
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| Veresov memorial 2009 | Minsk | BLR | 2009-06-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2015 | 1813 | 1.50 | 4 | 0.54 | 15 | 8.10 | |
|  Scherbakova, Alisa | | | 2025 | BLR | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Petrushko, Evgeni | | | 2006 | BLR | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Dvurechensky, Viacheslav | | | 2060 | BLR | 0.50 | 1 | 0.31 | 15 | 4.65 | |  Kolodko, Mikhail | | | 1970 | BLR | 1.00 | 1 | 0.71 | 15 | 10.65 | |
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) | | | | V International Chess Festival Open B Chojnice 2009 | Chojnice | POL | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1865 | 1800 | 4.00 | 8 | 0.69 | 15 | 10.35 | |
| | Walczak, Krystian | | | 1984 | POL | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Bartoszek, Michal | | | 1615 | POL | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Smagalski, Jaroslaw | | | 1955 | POL | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Wodzynski, Michal | | | 1996 | POL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Kaczmarek, Piotr | | | 1897 | POL | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Salamon, Jan | | | 1864 | POL | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Kaminski, Damian | | | 1805 | POL | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Zadlo, Anna | | | 1803 | POL | 0.50 | 1 | 0.00 | 15 | 0.00 | |
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) | | | | XI Miedzynarodowe Mistrzostwa Gdanska w szachach-Open B | Gdansk | POL | 2009-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1748 | 1800 | 4.00 | 6 | 0.60 | 15 | 9.00 | |
| | Demianowicz, Maciej | | | 1959 | POL | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Wolska, Marta | | | 1629 | POL | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Sowa, Martyna | | | 1671 | POL | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Andrearczyk, Pawel | | | 1854 | POL | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Rycyk, Radoslaw | | | 1604 | POL | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Wozniak, Bartosz | | | 1770 | POL | 1.00 | 1 | 0.46 | 15 | 6.90 | |
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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