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Individual Calculations February 2019 |
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| Ashcroft, Graham J Total change: -23.20 | |   |
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| London Christmas Chess Congress Major | London | ENG | 2018-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1689 | 1860 | 3.00 | 5 | -0.58 | 40 | -23.20 | |
|  Davidson, Laura | | | 1631 | ENG | 1.00 | 1 | 0.21 | 40 | 8.40 | |  Leslie, Alex | | | 1709 | ENG | 0.00 | 1 | -0.70 | 40 | -28.00 | | | Usharovsky, Ron | | | 1607 | ENG | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Parry, Jacques | | | 1639 | ENG | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Rowan, Paul | | | 1858 | ENG | 0.00 | 1 | -0.50 | 40 | -20.00 | |
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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