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Individual Calculations May 2015 |
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| De Coverly, Roger D Total change: -23.60 | |   |
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| 2015 Tom Weston Memorial Open/Major | Cardiff | WLS | 2015-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1695 | 2020 | 4.00 | 6 | -1.18 | 20 | -23.60 | |
|  Buttell, David | | | 1797 | WLS | 0.00 | 1 | -0.78 | 20 | -15.60 | |  Orton, Paul | | | 1655 | WLS | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Guha, Chirag | | | 1679 | WLS | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Sivarajasingam, Shayanna | | | 1620 * | WLS | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Camp, Imogen A L | | | 1620 * | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Dineen, Robert | | | 1799 | WLS | 0.50 | 1 | -0.28 | 20 | -5.60 | | | * 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) | | |
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