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Individual Calculations January 2009 |
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| Cheng, Bobby Total change: 9.75 | |   |
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| World Youth Chess Championships 2008 - Open 12 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 2088 | 4.00 | 7 | -0.28 | 15 | -4.20 | |
|  Le, Huu Thai | c | | 1898 | VIE | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Wagner, Dennis | | | 2000 | GER | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Purenne, Benoit | | | 1868 | FRA | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Ivekovic, Bozidar | | | 1921 | CRO | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Shiven, Khosla | | | 2206 | IND | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Ynojosa, Felix Jose | | | 2144 | ENG | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Akhmetov, Ayan | | | 1978 | KAZ | 1.00 | 1 | 0.35 | 15 | 5.25 | |
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) | | | | Elwood Bendigo Bank Championship | Melbourne | AUS | 2008-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 2088 | 4.00 | 6 | 0.15 | 15 | 2.25 | |
| | Myers, Stephen P | | | 1809 | AUS | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Dizdarevic, Mehmedalija | | | 2025 | BIH | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Russell, Luthien | | | 1790 | AUS | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Tsagarakis, Angelo | | | 1933 | AUS | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Smerdon, David | m | | 2438 | AUS | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Jule, Sebastian | | | 1895 | AUS | 1.00 | 1 | 0.25 | 15 | 3.75 | |
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) | | | | Australian Masters | Melbourne | AUS | 2008-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2247 | 2088 | 3.50 | 9 | 0.78 | 15 | 11.70 | |
| | Solomon, Stephen J. | m | | 2438 | AUS | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Hamilton, Douglas G. | f | | 2209 | AUS | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Smirnov, Vladimir | f | | 2338 | RUS | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Levi, Eddy | f | | 2203 | AUS | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Hacche, David | | | 2207 | AUS | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Dizdarevic, Mehmedalija | | | 2025 | BIH | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Rujevic, Mirko | m | | 2281 | AUS | 0.50 | 1 | 0.25 | 15 | 3.75 | | | West, Guy | m | | 2342 | AUS | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Gorka, Carl | | | 2184 | ENG | 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) | | |
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