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Individual Calculations October 2015 |
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| Ke, Ivan Total change: 6.40 | |   |
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| 2015 CalChess State Championship | Burlingame, California | USA | 2015-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2115 | 1879 | 0.50 | 2 | 0.08 | 40 | 3.20 | |
|  Chow, Colin | | | 2033 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | |  Richter, Paul | | | 2197 | USA | 0.00 | 1 | -0.13 | 40 | -5.20 | |
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) | | | | 2015 Bay Area Chess IM John Donaldson Championship | Milpitas, California | USA | 2015-09-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1910 | 1879 | 2.00 | 4 | 0.08 | 40 | 3.20 | |
| | Sartorio, William J | | | 1721 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Palusa, Maurya | | | 1618 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | | | De Guzman, Ricardo | m | | 2279 * | PHI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Lin, Julian M | | | 2023 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | * 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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