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Individual Calculations February 2017 |
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| Robinson, David Total change: 2.40 | |   |
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| South Wales New Year Open 2017 | Bridgend | WLS | 2017-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 1923 | 1.50 | 3 | 0.12 | 20 | 2.40 | |
|  Toczek, Grzegorz | f | | 2229 | POL | 0.00 | 1 | -0.14 | 20 | -2.80 | |  Probert, Malcolm | | | 1595 | WLS | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Pleasants, Allan J | | | 2018 | WLS | 0.50 | 1 | 0.13 | 20 | 2.60 | |
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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