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Individual Calculations January 2018 |
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| Wells, Jonathan C Total change: -38.00 | |   |
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| London Junior Chess Championships Northwick Park Open 2017 | London | ENG | 2017-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1740 | 2003 | 0.50 | 3 | -1.90 | 20 | -38.00 | |
|  Lovell, William Pm | | | 1688 | ENG | 0.50 | 1 | -0.36 | 20 | -7.20 | |  Ansari, Athar | | | 1898 | ENG | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Onslow, Teddy | | | 1633 | ENG | 0.00 | 1 | -0.90 | 20 | -18.00 | |
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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