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Individual Calculations November 2021 |
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| Katsman, David Total change: -15.60 | |   |
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| 89th Massachusetts Open | Quincy, Massachusetts | USA | 2021-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1893 | 2.50 | 6 | -0.39 | 40 | -15.60 | |
|  Barash, Anton | | | 1995 | USA | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Sun, Ryan | | | 1954 | USA | 1.00 | 1 | 0.58 | 40 | 23.20 | |  Song, Alan | | | 1989 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Hoy, Andrew | | | 1998 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Zhou, David Tianyi | | | 1894 | USA | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Wang, Ryan | | | 1562 | USA | 1.00 | 1 | 0.12 | 40 | 4.80 | |
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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