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Individual Calculations January 2015 |
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| Boumphrey, Luke S Total change: 16.80 | |   |
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| London Chess Classic 2014 Weekend U2000 | London | ENG | 2014-12-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1917 | 1948 | 3.00 | 4 | 0.84 | 20 | 16.80 | |
|  Kourtseva, Julie | | | 1774 | ENG | 1.00 | 1 | 0.27 | 20 | 5.40 | |  Archer-Lock, Adrian | | | 1995 | ENG | 1.00 | 1 | 0.57 | 20 | 11.40 | | | Hubert, Raphael | | | 1989 | FRA | 0.00 | 1 | -0.44 | 20 | -8.80 | | | Gonzalez Lopez, Mario | | | 1908 | ESP | 1.00 | 1 | 0.44 | 20 | 8.80 | |
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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