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Individual Calculations July 2015 |
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| Chen, Peter L Total change: 1.60 | |   |
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| 2015 US Junior Open U21 Championship | Schaumburg, Illinois | USA | 2015-06-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 1893 | 1.50 | 4 | 0.04 | 40 | 1.60 | |
|  Li, Zhaozhi | | | 2100 | USA | 0.50 | 1 | 0.27 | 40 | 10.80 | |  Amarasinghe, Prashantha | | | 2108 | SRI | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Titus, Andrew Lewis | | | 1975 | USA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Wang, Ricky | | | 1810 | USA | 0.50 | 1 | -0.11 | 40 | -4.40 | |
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) | | |
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