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Individual Calculations May 2018 |
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| Jukes, Sam Total change: 37.40 | |   |
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| 2018 Tom Weston Memorial | Cardiff | WLS | 2018-03-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1786 | 1760 | 5.00 | 7 | 1.78 | 20 | 35.60 | |
|  Evans, James | | | 1542 | WLS | 1.00 | 1 | 0.22 | 20 | 4.40 | |  Summers, Charles | | | 1901 | WLS | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Ray, Hiya | | | 1581 | WLS | 1.00 | 1 | 0.27 | 20 | 5.40 | | | James, Dai | | | 1850 | WLS | 1.00 | 1 | 0.62 | 20 | 12.40 | | | Pearson, Raymond | | | 1898 | WLS | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Gibbs, Dominic V | | | 1869 | ENG | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Evans, Nicholas Thomas | | | 1860 | WLS | 0.00 | 1 | -0.36 | 20 | -7.20 | |
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 2017/18 Round 4 | Neath | WLS | 2018-04-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1826 | 1760 | 0.50 | 1 | 0.09 | 20 | 1.80 | |
| | Downey, Keith | | | 1826 | WLS | 0.50 | 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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