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Individual Calculations July 2019 |
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| Graham, David B Total change: -11.00 | |   |
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| 13th Steve Boniface Memorial Congress Open | Bristol | ENG | 2019-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 2173 | 2.50 | 4 | -0.55 | 20 | -11.00 | |
|  Iwi, Graham R | | | 1895 | ENG | 0.50 | 1 | -0.33 | 20 | -6.60 | |  Garcia Hernandez, Oscar | | | 2068 | ESP | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Williams, Stephen M | | | 1899 | ENG | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Graham, Cassie M | | | 1983 | ENG | 0.50 | 1 | -0.25 | 20 | -5.00 | |
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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