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Individual Calculations January 2019 |
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| Lu, Joshua Total change: 17.20 | |   |
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| GM Igor Ivanov Weekender | Berkeley, California | USA | 2018-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1956 | 1942 | 2.00 | 3 | 0.56 | 40 | 22.40 | |
|  Liu, Kimberly | | wf | 1826 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | |  Gaffagan, Steven | | | 2036 | USA | 0.50 | 1 | 0.13 | 40 | 5.20 | | | Vidyarthi, Vyom | | | 2007 | USA | 0.50 | 1 | 0.09 | 40 | 3.60 | |
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) | | | | GM Daniel Naroditsky Championship | Milpitas, California | USA | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1663 | 1942 | 1.50 | 2 | -0.13 | 40 | -5.20 | |
| | Chang, Eliam | | | 1784 | USA | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Vidyarthi, Omya | | wc | 1542 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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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