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Individual Calculations September 2015 |
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| Purvis, Anna Total change: -14.80 | |   |
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| 102nd British Chess Championships Under 15 | Coventry | ENG | 2015-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1674 | 1425 | 0.50 | 4 | -0.30 | 40 | -12.00 | |
|  Mulay, Partha | | | 1760 | ENG | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Karia, Rishul | | | 1688 | ENG | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Forster, Matthew | | | 1669 | ENG | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Remus Elliot, Luke | | | 1577 | ENG | 0.00 | 1 | -0.30 | 40 | -12.00 | |
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) | | | | 5th GIBRALTAR JUNIOR INTERNATIONAL U16 | GIBRALTAR | ENG | 2015-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1738 | 1425 | 0.50 | 4 | -0.07 | 40 | -2.80 | |
| | Guerrero Mendez, Luis | | | 1804 | ESP | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Zrikem, Nassim | c | | 1672 | MAR | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Cramling Bellon, Anna | | | 1807 | SWE | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Kenyon, Mark A | | | 1669 | ENG | 0.50 | 1 | 0.30 | 40 | 12.00 | |
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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