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Individual Calculations December 2015 |
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| Gibbons, Andrew Total change: 7.20 | |   |
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| Welsh Chess Premier League 2015/16 Round 1 | Various | WLS | 2015-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2124 | 1914 | 0.50 | 1 | 0.27 | 20 | 5.40 | |
|  May, Frank | | | 2124 | WLS | 0.50 | 1 | 0.27 | 20 | 5.40 | |
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) | | | | 48th West Wales Championship | Swansea | WLS | 2015-11-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1816 | 1914 | 2.50 | 4 | 0.09 | 20 | 1.80 | |
|  Young, Alan | | | 2068 | WLS | 0.50 | 1 | 0.21 | 20 | 4.20 | | | Sivarajasingam, Shayanna | | | 1556 | WLS | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Sivarajasingam, Venetia | | | 1646 | WLS | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Davis, Lee | | | 1994 | WLS | 0.50 | 1 | 0.11 | 20 | 2.20 | |
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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