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Individual Calculations January 2023 |
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| Qin, Vincent Total change: -186.00 | |   |
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| 57th American Open | Orange, CA | USA | 2022-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1958 | 2034 | 1.50 | 8 | -3.37 | 40 | -134.80 | |
|  Wu, Jayden | | | 1690 | USA | 0.50 | 1 | -0.38 | 40 | -15.20 | |  Preotu, Razvan | g | | 2493 | CAN | 0.00 | 1 | -0.05 | 40 | -2.00 | | | Gasparyan, David | | | 1940 | USA | 0.00 | 1 | -0.63 | 40 | -25.20 | | | Vu, Leonard | | | 1771 | USA | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Liu, Aiden Q | | | 1955 | USA | 0.00 | 1 | -0.61 | 40 | -24.40 | | | Wang, Andrew | | | 1824 | USA | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Wang, Jeffery | | | 1953 | USA | 0.00 | 1 | -0.61 | 40 | -24.40 | | | Rempe, Jonas Jakob Raza | | | 2035 | GER | 0.50 | 1 | 0.00 | 40 | 0.00 | |
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) | | | | 1000GM December BonaFIDE Bay Area Swiss: 2000 and up | San Jose, CA | USA | 2022-12-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1701 | 2034 | 3.00 | 5 | -1.28 | 40 | -51.20 | |
| | Jin, Austin | | | 1634 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Xia, Joshua | | | 1656 | USA | 0.50 | 1 | -0.41 | 40 | -16.40 | | | Wu, Wentao | | | 1644 | USA | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Yao, Hanchi | | | 1618 | USA | 0.50 | 1 | -0.43 | 40 | -17.20 | | | Liu, Aiden | | | 1955 | USA | 1.00 | 1 | 0.39 | 40 | 15.60 | | | * 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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