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Individual Calculations January 2020 |
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| Watson, John L Total change: -6.60 | |   |
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| 55th Annual American Open | Costa Mesa, California | USA | 2019-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2054 | 2194 | 4.00 | 7 | -0.66 | 10 | -6.60 | |
|  Song, Jacob | | | 1980 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | |  Bryant, John | m | | 2419 | USA | 0.00 | 1 | -0.22 | 10 | -2.20 | | | Xie, Bryan | | | 1794 * | USA | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Wu, Rochelle | | wm | 2153 | USA | 0.50 | 1 | -0.06 | 10 | -0.60 | | | Somalwar, Anaiy | | | 2112 | USA | 0.50 | 1 | -0.11 | 10 | -1.10 | | | Soong, Danny | | | 1902 | USA | 0.50 | 1 | -0.35 | 10 | -3.50 | | | Chou, Jeffrey | c | | 2020 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | * 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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