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Individual Calculations January 2009 |
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| Tkachev, Ivan Total change: -5.25 | |   |
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| Autumn on Petrograd side 2008 open | St.Petersburg | RUS | 2008-09-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2077 | 1952 | 2.50 | 7 | 0.16 | 15 | 2.40 | |
|  Zhukov, Klim | | | 2146 | RUS | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Kozlov, Mikhail | | | 2056 | RUS | 0.50 | 1 | 0.14 | 15 | 2.10 | |  Anosov, Sergey | | | 2055 | RUS | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Belenkaya, Dina | | | 1970 | RUS | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Goldobin, Mikhail | | | 2064 | RUS | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Kopasov, Alexander | | | 2069 | RUS | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Bocharov, Leonid | | | 2182 | RUS | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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) | | | | St.Petersburg Chmp. 2008 Boys-16 | St.Petersburg | RUS | 2008-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 1955 | 1.50 | 5 | -0.51 | 15 | -7.65 | |
| | Kopasov, Alexander | | | 2109 | RUS | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Savikovsky, Artem | | | 2007 | RUS | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Koltsov, Roman | | | 1970 | RUS | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Tkachev, Taras | | | 2004 | RUS | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Usmanov, Vasily | | | 2040 | RUS | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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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