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Individual Calculations July 2009 |
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| Grochulski, Grzegorz Total change: 18.75 | |   |
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| 57th YMCA Winter 2009-B | Warszawa | POL | 2009-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2018 | 1955 | 5.50 | 10 | 1.35 | 15 | 20.25 | |
|  Krasiewicz, Robert | | | 2080 | POL | 1.00 | 1 | 0.67 | 15 | 10.05 | |  Sielicki, Tomasz | | | 2073 | POL | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Borowicz, Przemyslaw | | | 2008 | POL | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Choroszej, Aleksander | | | 1991 | POL | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Goslawski, Michal | | | 1970 | POL | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Ponceleusz, Bronislaw | | | 1965 | POL | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Kosny, Marek | | | 1980 | POL | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Szefer, Michal | | | 2067 | POL | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Szymczak, Rafal | | | 1995 | POL | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Zurkowski, Andrzej | | | 2047 | POL | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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) | | | | Mistrzostwa Polski Juniorów do 16 lat w szachach | Chotowa | POL | 2009-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 1955 | 4.50 | 11 | -0.47 | 15 | -7.05 | |
| | Wieczorek, Oskar | | | 2265 | POL | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Janczarski, Michal | | | 2247 | POL | 0.50 | 1 | 0.35 | 15 | 5.25 | | | Matuszewski, Michal | | | 2305 | POL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Cieslar, Michal | | | 1909 | POL | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Tomczyk, Szymon | | | 1754 | POL | 0.00 | 1 | -0.76 | 15 | -11.40 | | | Luka, Krzysztof | | | 1890 | POL | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Weichhold, Pawel | | | 2133 | POL | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Leczycki, Pawel | | | 1954 | POL | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Lorek, Milosz | | | 1950 | POL | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Grabowski, Adam | | | 1788 | POL | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Kulaszynski, Michal | | | 1836 | POL | 0.50 | 1 | -0.16 | 15 | -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) | | | | Turniej Szachowy „Cztery Pory Roku” o Puchar Burmistrza Ursusa grupa A | Warszawa-Ursus | POL | 2009-05-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2204 | 1949 | 1.00 | 3 | 0.37 | 15 | 5.55 | |
| | Nguyen, Piotr | | | 2299 | POL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Skwarczylo, Marek | | | 2014 | POL | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Adamski, Jan | m | | 2299 | POL | 0.00 | 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) | | |
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