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Individual Calculations December 2017 |
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| Bruno, Ronald Total change: -23.20 | |   |
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| 53rd Annual American Open | Costa Mesa, California | USA | 2017-11-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1934 | 2179 | 2.00 | 4 | -1.16 | 20 | -23.20 | |
|  Somalwar, Anaiy | | | 1974 | USA | 0.50 | 1 | -0.26 | 20 | -5.20 | |  Wongso, Steve | | | 1779 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Pan, Kevin | | | 1938 | USA | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Ge, Anthony | | | 2043 | USA | 0.00 | 1 | -0.68 | 20 | -13.60 | | | * 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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