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Individual Calculations October 2021 |
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| Gurevich, Dmitry Total change: -16.20 | |   |
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| 2021 Illinois Open State Championship - Open | Northbrook, Illinois | USA | 2021-09-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2009 | 2386 | 2.00 | 4 | -1.62 | 10 | -16.20 | |
|  Drippe, John M | | | 1986 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Platnick, Elijah Samuel | | | 1986 * | USA | 0.00 | 1 | -0.92 | 10 | -9.20 | | | Zinski, Maximilian | | | 2078 | USA | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Bruha, Nicholas | | | 1986 * | USA | 0.00 | 1 | -0.92 | 10 | -9.20 | | | * 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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