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Individual Calculations April 2019 |
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| Trees, Christopher Total change: -5.20 | |   |
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| 23rd Annual Boris Kogan Memorial | Chamblee, Georgia | USA | 2019-03-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 1959 | 2.00 | 4 | -0.13 | 40 | -5.20 | |
|  Chen, Benjamin | | | 1839 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | |  Kothapalli, Pradhyumna Kumar | | | 1730 | IND | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Zapata, Alonso | g | | 2359 * | COL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Liu, Jackie | | | 1884 | USA | 0.50 | 1 | -0.10 | 40 | -4.00 | | | * 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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