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Individual Calculations February 2019 |
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| Wu, Derek Sijing Total change: 14.00 | |   |
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| Bay Area International | Burlingame, California | USA | 2019-01-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2272 | 2026 | 1.00 | 1 | 0.81 | 40 | 32.40 | |
|  Cline, John | | | 2272 | USA | 1.00 | 1 | 0.81 | 40 | 32.40 | |
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) | | | | 10th Annual Golden State Open | Concord, California | USA | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1881 | 2026 | 3.00 | 5 | -0.46 | 40 | -18.40 | |
| | Sartorio, William | | | 1836 | USA | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Lu, Yixiang | | | 1819 | USA | 0.50 | 1 | -0.27 | 40 | -10.80 | |  Cheng, Daniel | | | 1857 | USA | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Dasika, Archit | | | 1978 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Biyiasas, Theodore | | | 1916 | USA | 1.00 | 1 | 0.35 | 40 | 14.00 | |
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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