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Individual Calculations February 2020 |
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| Wu, Derek Total change: 50.00 | |   |
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| 29th Annual North American Open | Las Vegas, Nevada | USA | 2019-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2160 | 2040 | 5.00 | 9 | 1.88 | 40 | 75.20 | |
|  Vibbert, Sean | f | | 2320 | USA | 0.50 | 1 | 0.34 | 40 | 13.60 | |  Pan, Kevin | | | 2062 | USA | 0.50 | 1 | 0.03 | 40 | 1.20 | | | Blatny, Pavel | g | | 2331 | CZE | 1.00 | 1 | 0.85 | 40 | 34.00 | | | Tarrago Antoni, Maurici | | | 2235 | ESP | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Kretchetov, Alexandre | f | | 2220 | RUS | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Liu, Bovey | | | 2230 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Li, Hanxiang | | | 2095 | CHN | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Omori, Michael | | | 2112 | USA | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Gutla, Aryan | | | 1834 | USA | 1.00 | 1 | 0.24 | 40 | 9.60 | |
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) | | | | Burger Memorial Championship 2020 - Open Section | San Francisco, California | USA | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2015 | 2056 | 1.50 | 4 | -0.63 | 40 | -25.20 | |
| | Griffith, Kyron Wa | f | | 2315 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Biyiasas, Theodore | | | 1959 | USA | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Koo, Calvin | | | 1656 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Wu, Rochelle | | wm | 2131 | USA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | * 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) | | |
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