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Individual Calculations November 2011 |
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| Irwanto, Sadikin Total change: -10.50 | |   |
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| 8th IGB Dato’ Arthur Tan Malaysia Open Chess Championship 2011 | Kuala Lumpur | MAS | 2011-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2329 | 2417 | 4.50 | 8 | -0.30 | 10 | -3.00 | |
|  Siew, Kit-Tze Mark | | | 2017 * | MAS | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Bai, Jinshi | | | 2151 | CHN | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Wallis, Christopher | f | | 2287 | AUS | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Cao, Sang | g | | 2533 | VIE | 0.50 | 1 | 0.16 | 10 | 1.60 | | | Wen, Yang | g | | 2558 | CHN | 0.50 | 1 | 0.19 | 10 | 1.90 | | | Lane, Gary W. | m | | 2369 | AUS | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Morris, James | m | | 2300 | AUS | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Yu, Lie | m | | 2414 | CHN | 0.00 | 1 | -0.50 | 10 | -5.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | Indonesia Open Chess Championship 2011 | Jakarta | INA | 2011-10-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2319 | 2429 | 5.00 | 9 | -0.75 | 10 | -7.50 | |
| | Hendra, Johan | | | 2216 | INA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Li, Chao B | g | | 2710 | CHN | 0.00 | 1 | -0.16 | 10 | -1.60 | | | Surya, Wahyudi | | | 2255 | INA | 0.00 | 1 | -0.73 | 10 | -7.30 | | | Dewi, Aa Citra | | wf | 2083 | INA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Margana, Adhi | | | 2204 | INA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Marentek, Hanny | f | | 2227 | INA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Reinderman, Dimitri | g | | 2594 | NED | 0.50 | 1 | 0.22 | 10 | 2.20 | | | Khairul, Anam | f | | 2266 | INA | 0.00 | 1 | -0.72 | 10 | -7.20 | | | Sonjaya, Deni | f | | 2313 | INA | 1.00 | 1 | 0.34 | 10 | 3.40 | |
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) | | |
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