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Individual Calculations September 2018 |
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| Purdon, Colin Total change: -12.20 | |   |
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| 54th Berks & Bucks Chess Congress Championship | Maidenhead | ENG | 2018-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1964 | 2048 | 3.00 | 6 | -0.61 | 20 | -12.20 | |
|  Varney, Daniel | | | 1899 | ENG | 0.50 | 1 | -0.20 | 20 | -4.00 | |  Sagues, Vincent | | | 1928 | FRA | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Borland, Scott | | | 1720 | ENG | 0.00 | 1 | -0.87 | 20 | -17.40 | | | Ratnesan, Ranesh | | | 2077 | ENG | 1.00 | 1 | 0.54 | 20 | 10.80 | | | Varney, Zoe | | | 2003 | ENG | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Hand, Freddie | | | 2154 | ENG | 0.50 | 1 | 0.14 | 20 | 2.80 | |
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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