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Individual Calculations May 2019 |
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| Fathallah, Joe Total change: -18.80 | |   |
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| 2019 Welsh Championships | Cardiff | WLS | 2019-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 1958 | 3.00 | 7 | -0.60 | 20 | -12.00 | |
|  Sands, David A | | | 2109 | WLS | 0.00 | 1 | -0.30 | 20 | -6.00 | |  Jones, Derek | | | 1925 | WLS | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Turner, Joseph David | | | 1846 | WLS | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Jukes, Sam | | | 1892 | WLS | 1.00 | 1 | 0.41 | 20 | 8.20 | | | Camp, Imogen A L | | wc | 1827 | WLS | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Young, Alan | | | 2021 | WLS | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Heaven, Pete | | | 2017 | WLS | 0.50 | 1 | 0.08 | 20 | 1.60 | |
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) | | | | Welsh Chess Premier League 2018/2019 Round 5 | Neath | WLS | 2019-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2075 | 1958 | 0.00 | 1 | -0.34 | 20 | -6.80 | |
| | Pleasants, Allan J | | | 2075 | WLS | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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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