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Individual Calculations September 2019 |
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| Cowan, Xavier Total change: 72.80 | |   |
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| 106th British Championships Under 16 | Torquay | ENG | 2019-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1810 | 1667 | 1.50 | 5 | -0.09 | 40 | -3.60 | |
|  Salmons, Calum | | | 1898 | ENG | 0.00 | 1 | -0.21 | 40 | -8.40 | |  Miller, Max C | | | 1562 | ENG | 0.50 | 1 | -0.14 | 40 | -5.60 | | | Gurner, Jem | | | 1851 | JCI | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Rathbone-Jones, Ifan | | | 1855 | WLS | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Guha, Chirag | | | 1885 | WLS | 0.00 | 1 | -0.22 | 40 | -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) | | | | 74th Hampstead FIDE Chess Congress U2200 | London | ENG | 2019-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1917 | 1667 | 2.50 | 3 | 1.91 | 40 | 76.40 | |
| | Zierahn, Lukas | | | 1909 | GER | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Bak, Andrew | | | 1994 | ENG | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Siddharth, Gopakumar | | | 1847 | IND | 1.00 | 1 | 0.74 | 40 | 29.60 | |
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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