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Individual Calculations February 2019 |
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| Lu, Joshua Total change: -10.80 | |   |
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| Bay Area Amateur Championship | Burlingame, California | USA | 2019-01-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1804 | 1959 | 2.50 | 3 | 0.47 | 40 | 18.80 | |
|  Faulks, Anthony | | | 1590 | USA | 1.00 | 1 | 0.10 | 40 | 4.00 | |  Wang, Henry | | | 1965 | USA | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Cheng, Daniel | | | 1857 | USA | 0.50 | 1 | -0.14 | 40 | -5.60 | |
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) | | | | 10th Annual Golden State Open | Concord, California | USA | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1802 | 1959 | 2.00 | 4 | -0.74 | 40 | -29.60 | |
| | Pruitt, Carvin | | | 1777 | USA | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Dasika, Archit | | | 1978 | USA | 0.00 | 1 | -0.47 | 40 | -18.80 | | | Sivakumar, Shaaketh | | | 1586 | USA | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Ai, Evan | | | 1867 | USA | 0.00 | 1 | -0.63 | 40 | -25.20 | |
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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