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Individual Calculations December 2017 |
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| Rizzoli, Aluna Total change: -1.20 | |   |
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| 2017 Central London Chess Congress (Open Section) | London | ENG | 2017-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2080 | 1900 | 1.00 | 4 | -0.06 | 20 | -1.20 | |
|  Russell, Christopher | | | 2089 | ENG | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Tozer, Philip A A | | | 2132 | ENG | 0.00 | 1 | -0.21 | 20 | -4.20 | |  Fink-Nunn, Petra | | wf | 2080 | ENG | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Wilks, Simon | | | 2019 | ENG | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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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