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Individual Calculations September 2017 |
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| Macdonald, Jamie Total change: 21.60 | |   |
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| 104th British Championships Weekend Under 1825 | Llandudno | ENG | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1605 | 1698 | 3.00 | 4 | 0.54 | 40 | 21.60 | |
|  Robinson, Brian | | | 1581 | ENG | 1.00 | 1 | 0.34 | 40 | 13.60 | |  Clanchy, Nicholas | | | 1770 | ENG | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Hosdurga, Chirag | | | 1411 | ENG | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Jaufarally, Nadia | | | 1657 | ENG | 1.00 | 1 | 0.44 | 40 | 17.60 | |
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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