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Individual Calculations February 2019 |
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| Fathallah, Joe Total change: 7.60 | |   |
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| South Wales New Year Open 2019 | Bridgend | WLS | 2019-01-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1935 | 1962 | 2.50 | 4 | 0.38 | 20 | 7.60 | |
|  Di-Vetta, Andrew | | | 1728 | WLS | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Turner, Joseph David | | | 1862 | WLS | 1.00 | 1 | 0.36 | 20 | 7.20 | |  Young, Alan | | | 2048 | WLS | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Heap, Gerry | | | 2103 | WLS | 0.00 | 1 | -0.31 | 20 | -6.20 | |
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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