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Individual Calculations August 2021 |
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| Henderson, Se Total change: -18.20 | |   |
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| 2021 Calchess Senior State Championship | Berkeley, California | USA | 2021-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1530 | 1494 | 0.00 | 2 | -0.91 | 20 | -18.20 | |
|  Gran, Rahim | | | 1656 | USA | 0.00 | 1 | -0.29 | 20 | -5.80 | |  Boyd, Tom | | | 1404 | USA | 0.00 | 1 | -0.62 | 20 | -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) | | |
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