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Individual Calculations September 2021 |
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| Joelson, Daniel Total change: 26.00 | |   |
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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 |
| 2240 | 2126 | 2.50 | 5 | 0.65 | 40 | 26.00 | |
|  Fedorowicz, John P | g | | 2413 | USA | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Finegold, Benjamin P | g | | 2466 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Farrell, John F | | | 1925 | USA | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Koganov, Mikhail | | | 2119 | USA | 0.50 | 1 | -0.01 | 40 | -0.40 | | | Ferreiro, Roberto | f | | 2279 | CUB | 0.50 | 1 | 0.20 | 40 | 8.00 | |
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) | | |
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