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Individual Calculations September 2017 |
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| Aitchison, A Keith Total change: -11.60 | |   |
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| 104th British Championships Weekend Under 1825 | Llandudno | ENG | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1564 | 1692 | 2.00 | 4 | -0.58 | 20 | -11.60 | |
|  Clanchy, Nicholas | | | 1770 | ENG | 0.00 | 1 | -0.39 | 20 | -7.80 | |  Ramaiya, Arushi | | | 1614 | ENG | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Laurillard, Xavier | | | 1310 | ENG | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Gunn, Michael J | | | 1563 | ENG | 1.00 | 1 | 0.33 | 20 | 6.60 | |
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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