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Individual Calculations February 2017 |
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| Fathallah, Joe Total change: 7.60 | |   |
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| South Wales New Year Open 2017 | Bridgend | WLS | 2017-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 1995 | 2.50 | 4 | 0.48 | 20 | 9.60 | |
|  Jukes, Sam | | | 1730 | WLS | 1.00 | 1 | 0.18 | 20 | 3.60 | |  Bullen, Alex | | | 2105 | WLS | 0.50 | 1 | 0.15 | 20 | 3.00 | | | White, Ernest M | | | 1889 | WLS | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Toczek, Grzegorz | f | | 2229 | POL | 0.00 | 1 | -0.21 | 20 | -4.20 | |
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) | | | | Welsh Chess Premier League 2016/17 Round 2 | Various | WLS | 2017-01-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 1995 | 0.50 | 1 | -0.10 | 20 | -2.00 | |
| | Davis, Lee | | | 1921 | WLS | 0.50 | 1 | -0.10 | 20 | -2.00 | |
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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