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Individual Calculations October 2018 |
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| Wu, Rochelle Total change: -25.20 | |   |
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| 2018 CalChess State Championship | Union City, California | USA | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 2029 | 4.00 | 6 | -0.02 | 40 | -0.80 | |
|  Senthilkumar, Pranav | c | | 1855 | USA | 0.50 | 1 | -0.23 | 40 | -9.20 | |  Lu, Joshua | | | 1830 | USA | 0.50 | 1 | -0.26 | 40 | -10.40 | | | Palusa, Maurya | | | 1849 | USA | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Ai, Evan Zihao | | | 1846 | USA | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Pan, Kevin | | | 2040 | USA | 0.50 | 1 | 0.02 | 40 | 0.80 | | | Pan, David | | | 1979 | USA | 1.00 | 1 | 0.43 | 40 | 17.20 | |
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 |
| 1849 | 2029 | 3.00 | 5 | -0.62 | 40 | -24.80 | |
| | Shivakumar, Shawnak | | | 1684 | USA | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Kim, Isaiah | | | 1964 | USA | 0.50 | 1 | -0.09 | 40 | -3.60 | | | Vidyarthi, Vyom | | | 1916 | USA | 0.00 | 1 | -0.65 | 40 | -26.00 | | | Cheng, Daniel | | | 1801 | USA | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Nayberg, Simona | | | 1880 | USA | 1.00 | 1 | 0.30 | 40 | 12.00 | |
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 George Koltanowski Memorial | Milpitas, California | USA | 2018-09-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 2029 | 2.00 | 3 | 0.01 | 40 | 0.40 | |
| | Sartorio, William Jiarui | | | 1827 | USA | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Wang, Henry | | | 1970 | USA | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Quander, Marshall J | | | 1916 | USA | 1.00 | 1 | 0.35 | 40 | 14.00 | |
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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