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Individual Calculations February 2023 |
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| Zhuge, Katherine Total change: -47.60 | |   |
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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 |
| 1756 | 1440 | 0.50 | 6 | -0.46 | 40 | -18.40 | |
|  Dowling, John | | | 1915 | USA | 0.00 | 1 | -0.05 | 40 | -2.00 | |  Zhou, Chelsea | | wc | 1824 | USA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Feng, Jay | | | 1700 | USA | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Tang, Austin | | | 1910 | USA | 0.00 | 1 | -0.05 | 40 | -2.00 | | | Guan, Tsz Yeung | | | 1582 | CAN | 0.00 | 1 | -0.31 | 40 | -12.40 | | | He, Justin Shandong Shan | | | 1607 | USA | 0.00 | 1 | -0.28 | 40 | -11.20 | |
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) | | | | 14th annual Golden State Open - U2100 Section | Concord, CA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1451 | 1500 | 1.50 | 4 | -0.73 | 40 | -29.20 | |
| | Jiang, Leo | | | 1471 | USA | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Handigol, Abhishek | | | 1858 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Ma, Matthew | | | 1100 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Yi, Colin | | | 1373 | USA | 1.00 | 1 | 0.33 | 40 | 13.20 | | | * 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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