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Individual Calculations May 2017 |
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| Simpson, Derek Total change: 30.60 | |   |
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| 13th 4NCL Congress Open | Wakefield | ENG | 2017-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1964 | 1621 | 2.00 | 4 | 1.53 | 20 | 30.60 | |
|  Vickery, Jim E | | | 1963 | ENG | 0.50 | 1 | 0.38 | 20 | 7.60 | |  Wells, Jonathan C | | | 2018 | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Bielby, Paul R | | | 1939 | ENG | 0.50 | 1 | 0.37 | 20 | 7.40 | | | Modi, Shyam Jagdish | | | 1934 | ENG | 1.00 | 1 | 0.86 | 20 | 17.20 | |
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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