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Individual Calculations November 2019 |
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| Fathallah, Joe Total change: 7.80 | |   |
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| 52nd West Wales Open 2019 | Swansea | WLS | 2019-10-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1870 | 1904 | 3.00 | 5 | 0.30 | 20 | 6.00 | |
|  Morgans, Justin | | | 1657 | WLS | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Toczek, Grzegorz | f | | 2259 | WLS | 0.00 | 1 | -0.11 | 20 | -2.20 | | | Chung, Joel | | | 1504 * | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Graham, David B | | | 2162 | ENG | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Marin Marin, Francisco Javier | | | 1767 | ESP | 1.00 | 1 | 0.32 | 20 | 6.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 2019/2020 Round 1 | Neath | WLS | 2019-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1513 | 1904 | 1.00 | 1 | 0.09 | 20 | 1.80 | |
| | McIntosh, Rachel | | | 1513 | WLS | 1.00 | 1 | 0.09 | 20 | 1.80 | |
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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