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Individual Calculations February 2015 |
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| Fathallah, Joe Total change: 36.00 | |   |
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| 2015 South Wales New Year Open | Bridgend | WLS | 2015-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1977 | 1937 | 3.50 | 5 | 1.34 | 20 | 26.80 | |
|  Sivarajasingam, Shayanna | | | 1553 | WLS | 1.00 | 1 | 0.09 | 20 | 1.80 | |  Sands, David A | | | 2192 | WLS | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Mason, Donald J | | | 2138 | ENG | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Brown, Thomas | | | 2054 | WLS | 0.00 | 1 | -0.34 | 20 | -6.80 | | | James, Dai | | | 1950 | WLS | 1.00 | 1 | 0.52 | 20 | 10.40 | |
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 2014/15 Rd4 | Various | WLS | 2015-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1907 | 1937 | 1.00 | 1 | 0.46 | 20 | 9.20 | |
| | May, Adam J | | | 1907 | WLS | 1.00 | 1 | 0.46 | 20 | 9.20 | |
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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