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Individual Calculations February 2023 |
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| Zhou, Chelsea Total change: -80.40 | |   |
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| 32nd annual North American Open - U2300 | Paradise, Nevada | USA | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1824 | 2.50 | 7 | -0.73 | 40 | -29.20 | |
|  Bykovtsev, Agata | | wm | 1999 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | |  Zhuge, Katherine | | | 1440 | USA | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Paez, David | | | 2006 | COL | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Groff, Jordan | | | 1852 | USA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Kudryavtsev, Vadim | | | 2004 | RUS | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Sabyrov, Muradhan Emir | | | 1622 | USA | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Castro, Natalia Patricia | | wm | 1964 | COL | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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) | | | | 14th annual Golden State Open - Major | Concord, CA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1786 | 1.50 | 6 | -1.28 | 40 | -51.20 | |
| | Tarjan, James Edward | g | | 2360 | USA | 0.00 | 1 | -0.02 | 40 | -0.80 | | | Xia, Joshua | | | 1694 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Finkelstein, Alan J | | | 2152 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Gopalakrishnan, Kritin Rohan | | | 1592 | USA | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Wu, Wentao | | | 1662 | USA | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Karunakaran, Kapilan | | | 1703 | USA | 0.50 | 1 | -0.11 | 40 | -4.40 | |
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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