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Individual Calculations December 2018 |
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| Oconnor, Derek Total change: 8.80 | |   |
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| November 2018 Berkeley Weekender | Berkeley, California | USA | 2018-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1965 | 2239 | 4.50 | 5 | 0.44 | 20 | 8.80 | |
|  Cheng, Daniel | | | 1846 | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Mahesh, Tejas | | | 1839 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Vidyarthi, Vyom | | | 1962 | USA | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Li, Eric Yuhan | c | | 2022 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Lee, Megan | | wm | 2156 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | * 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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