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Individual Calculations September 2017 |
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| Matthews, Graham W Total change: 9.20 | |   |
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| 104th British Championships Under 1900 | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1799 | 1610 | 1.00 | 3 | 0.23 | 40 | 9.20 | |
|  Murrell, Mark Ra | | | 1791 | ENG | 0.50 | 1 | 0.24 | 40 | 9.60 | |  Ribbands, Patrick C | | | 1755 | ENG | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Dean, Robert A | | | 1850 | ENG | 0.00 | 1 | -0.20 | 40 | -8.00 | |
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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