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Individual Calculations September 2018 |
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| Graff, Ben Total change: 16.80 | |   |
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| 105th British Championships Weekend Open | Hull | ENG | 2018-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1994 | 1863 | 2.50 | 5 | 0.84 | 20 | 16.80 | |
|  Gayson, Peter M | | | 2138 | ENG | 0.50 | 1 | 0.33 | 20 | 6.60 | |  Vickery, Jim E | | | 1975 | ENG | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Doran, Chris | | | 1967 | ENG | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Varney, Zoe | | | 2003 | ENG | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Portman, Carl S | | | 1886 | ENG | 0.50 | 1 | 0.03 | 20 | 0.60 | |
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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