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Individual Calculations September 2017 |
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| Connolly Sams, Dietah Total change: -3.20 | |   |
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| 104th British Championships Under 1900 | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1741 | 1565 | 1.00 | 4 | -0.08 | 40 | -3.20 | |
|  Brown, Geoffrey M | | | 1756 | ENG | 0.00 | 1 | -0.25 | 40 | -10.00 | |  Clare, Steve | | | 1729 | ENG | 1.00 | 1 | 0.72 | 40 | 28.80 | | | Jones, Neil T | | | 1788 | ENG | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Walshaw, David | | | 1691 | ENG | 0.00 | 1 | -0.33 | 40 | -13.20 | |
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) | | |
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