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Individual Calculations October 2018 |
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| Vidyarthi, Vyom Total change: 52.80 | |   |
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| 2018 CalChess State Championship | Union City, California | USA | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1946 | 1916 | 2.00 | 3 | 0.62 | 40 | 24.80 | |
|  Del Rosario, Frisco | | | 1895 | USA | 1.00 | 1 | 0.47 | 40 | 18.80 | |  Wu, Sijing | | | 2050 | USA | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Nathan, Krishna | | | 1894 | USA | 0.50 | 1 | -0.03 | 40 | -1.20 | |
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) | | | | 2018 Berkeley Open | Berkeley, California | USA | 2018-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 1916 | 1.50 | 3 | 0.70 | 40 | 28.00 | |
| | Wu, Rochelle | | wc | 2029 | USA | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Oconnor, Derek | | | 2232 | USA | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Wu, Derek Sijing | | | 2050 | USA | 0.00 | 1 | -0.32 | 40 | -12.80 | |
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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