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Individual Calculations May 2013 |
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| Porter, Sam Total change: 24.00 | |   |
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| e2e4 Gatwick U2000 April 2013 | London | ENG | 2013-04-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1892 | 1846 | 2.50 | 4 | 0.75 | 30 | 22.50 | |
|  Pink, Joshua | | | 1790 | ENG | 1.00 | 1 | 0.42 | 30 | 12.60 | | | Ireland, David J | | | 1939 | ENG | 0.50 | 1 | 0.13 | 30 | 3.90 | |  Tart, Peter K | | | 1966 | ENG | 0.00 | 1 | -0.34 | 30 | -10.20 | | | Giles, Yasmin | | | 1873 | ENG | 1.00 | 1 | 0.54 | 30 | 16.20 | |
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) | | | | Hampstead Under 2200 FIDE Congress April 2013 | London | ENG | 2013-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1711 | 1846 | 2.00 | 3 | 0.05 | 30 | 1.50 | |
| | Duncan, Patrick C M | | | 2055 | ENG | 0.00 | 1 | -0.23 | 30 | -6.90 | | | Balouka-Myers, Gabriel | | | 1528 | ENG | 1.00 | 1 | 0.13 | 30 | 3.90 | | | Balouka-Myers, Reuben | | | 1550 | ENG | 1.00 | 1 | 0.15 | 30 | 4.50 | |
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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