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Individual Calculations September 2021 |
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| Matros, Alexander Total change: -1.40 | |   |
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| 4th Annual John T. Irwin National Tournament of Senior State Champions | Cherry Hill, New Jersey | USA | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2365 | 4.00 | 6 | -0.14 | 10 | -1.40 | |
|  Casden, Alan | | | 2077 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | |  Koganov, Mikhail | | | 2119 | USA | 0.00 | 1 | -0.81 | 10 | -8.10 | | | Moussa, Alaa-Addin | c | | 1969 | PLE | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Levi, Ariel S | | | 2069 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Finegold, Benjamin P | g | | 2466 | USA | 1.00 | 1 | 0.64 | 10 | 6.40 | | | Root, Douglas D | m | | 2465 | USA | 0.00 | 1 | -0.36 | 10 | -3.60 | |
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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