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Individual Calculations September 2022 |
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| Kosokin, Valeriy Total change: 36.20 | |   |
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| 5th Annual Irwin National Tournament of Senior State Champions | Rancho Mirage, California | USA | 2022-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2279 | 2156 | 3.00 | 5 | 1.29 | 20 | 25.80 | |
|  Kudrin, Sergey | g | | 2396 | USA | 1.00 | 1 | 0.80 | 20 | 16.00 | |  Sevillano, Enrico | g | | 2383 | USA | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Altucher, James | | | 1868 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Matros, Alexander | m | | 2335 | KAZ | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Fedorowicz, John P | g | | 2411 | USA | 0.50 | 1 | 0.31 | 20 | 6.20 | |
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) | | | | 2022 Des Moines Open | Des Moines, Iowa | USA | 2022-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 2156 | 4.50 | 5 | 0.52 | 20 | 10.40 | |
| | Fei, Irene Jiao | | | 1756 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Zulic, Jasmin | | | 1800 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Cavanah, Troy | | | 1909 | USA | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Fowler, Samuel | | | 2008 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Takahashi, Michael | | | 2040 | USA | 0.50 | 1 | -0.16 | 20 | -3.20 | | | * 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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