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Individual Calculations October 2018 |
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| Li, Eric Yuhan Total change: 26.00 | |   |
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| 2018 CalChess State Championship | Union City, California | USA | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2155 | 2008 | 3.50 | 6 | 1.48 | 40 | 59.20 | |
|  Ai, Evan Zihao | | | 1846 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | |  Coleman, Teddy | m | | 2378 | USA | 1.00 | 1 | 0.90 | 40 | 36.00 | | | Yoo, Christopher Woojin | f | | 2402 | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Lee, Megan | | wm | 2165 | USA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Canessa, John | | | 1972 | USA | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Winslow, Elliott | m | | 2169 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | |
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 |
| 1956 | 2008 | 1.00 | 3 | -0.65 | 40 | -26.00 | |
| | Sirak, Guy | | | 1608 * | ISR | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Stearman, Josiah | f | | 2306 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Kondakov, Adrian | | | 1954 | USA | 0.00 | 1 | -0.58 | 40 | -23.20 | | | * 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) | | | | GM George Koltanowski Memorial | Milpitas, California | USA | 2018-09-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 2008 | 2.00 | 3 | -0.18 | 40 | -7.20 | |
| | Tia Jr, Rudy G | | | 1865 | PNG | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Yan, Rui Yang | | | 1852 | USA | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Chang, Eliam | | | 1787 | USA | 0.50 | 1 | -0.28 | 40 | -11.20 | |
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) | | |
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