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Individual Calculations February 2015 |
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| Boswell, Jacob Connor Total change: -16.40 | |   |
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| London Junior Chess Championship 2014 U16 | London | ENG | 2014-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1557 | 1616 | 1.50 | 4 | -0.84 | 40 | -33.60 | |
|  Green, Michael | | | 1872 | ENG | 0.50 | 1 | 0.31 | 40 | 12.40 | |  Espinosa Cancino, Monica | | | 1470 | SCO | 0.00 | 1 | -0.70 | 40 | -28.00 | | | Ragavan, Soumiya | | | 1429 | ENG | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Zhao, Haolin | | | 1456 | ENG | 0.00 | 1 | -0.71 | 40 | -28.40 | |
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) | | | | 4NCL 2014-15 Rounds 3-4 | Various | ENG | 2015-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1778 | 1616 | 1.00 | 2 | 0.43 | 40 | 17.20 | |
| | Coward, Neil | | | 1792 | ENG | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Mahoney, Nicholas | | | 1764 | ENG | 1.00 | 1 | 0.70 | 40 | 28.00 | |
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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