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Individual Calculations January 2009 |
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| Ma, Qun Total change: 77.70 | |   |
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| 2008 China Team Championships Group B | Zhengzhou | CHN | 2008-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2128 | 2241 | 2.50 | 4 | -0.08 | 15 | -1.20 | |
|  Chen, Peng | | | 2046 | CHN | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Luo, Wei | f | | 2288 | CHN | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Zhang, Haosu | | | 2090 | CHN | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Zhang, Shengyun | | | 2089 | CHN | 1.00 | 1 | 0.30 | 15 | 4.50 | |
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) | | | | 2008 Men's China Championship Group B | Zhengzhou | CHN | 2008-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2453 | 2241 | 3.00 | 6 | 1.61 | 15 | 24.15 | |
| | Zhou, Weiqi | | | 2556 | CHN | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Wang, Yaoyao | m | | 2422 | CHN | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Tan, Zhongyi | | | 2387 | CHN | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Zhang, Ziyang | | | 2441 | CHN | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Liu, Qingnan | | | 2439 | CHN | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Wan, Yunguo | | | 2471 | CHN | 1.00 | 1 | 0.79 | 15 | 11.85 | |
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) | | | | World Youth Chess Championships 2008 - Open 18 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2452 | 2241 | 6.00 | 10 | 3.65 | 15 | 54.75 | |
| | Le, Quang Liem | g | | 2583 | VIE | 1.00 | 1 | 0.88 | 15 | 13.20 | | | Karthikeyan, P | m | | 2426 | IND | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Klimov, Anton | f | | 2451 | RUS | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Paichadze, Luka | f | | 2436 | GEO | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Toufighi, Homayoon | f | | 2470 | IRI | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Delorme, Axel | f | | 2415 | FRA | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Ludwig, Daniel | | | 2400 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Rasulov, Vugar | f | | 2384 | AZE | 1.00 | 1 | 0.69 | 15 | 10.35 | | | Tomczak, Jacek | m | | 2461 | POL | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Matlakov, Maxim | m | | 2491 | RUS | 0.50 | 1 | 0.31 | 15 | 4.65 | |
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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