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Individual Calculations January 2018 |
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| John, Joshua Total change: 30.40 | |   |
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| 9th CSC London Chess Classic: Weekday U2050 | London | ENG | 2017-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1525 | 1.50 | 4 | 0.76 | 40 | 30.40 | |
|  McKenna, James F | | | 1843 | ENG | 0.50 | 1 | 0.37 | 40 | 14.80 | |  Phillips, William | | | 1834 | ENG | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Wells, Tony D | | | 1831 | ENG | 0.00 | 1 | -0.14 | 40 | -5.60 | | | McKenna, John R | | | 1651 | ENG | 0.50 | 1 | 0.17 | 40 | 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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