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Individual Calculations March 2015 |
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| Buttell, David Total change: 4.40 | |   |
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| 4NCL 2014-15 Rounds 5-6 | Various | ENG | 2015-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1910 | 1793 | 1.00 | 2 | 0.27 | 20 | 5.40 | |
|  Manelidou, Maria | | | 2067 | GRE | 0.50 | 1 | 0.33 | 20 | 6.60 | |  Cooke, Charlie | | | 1753 | ENG | 0.50 | 1 | -0.06 | 20 | -1.20 | |
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) | | | | 44th Dyfed Chess Congress | Goodwick | WLS | 2015-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1933 | 1793 | 1.00 | 3 | -0.05 | 20 | -1.00 | |
| | Jones, Iolo C | f | | 2169 | WLS | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Jones, Jeremy | | | 1604 | WLS | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Bevan, Peter M | | | 2025 | WLS | 0.00 | 1 | -0.21 | 20 | -4.20 | |
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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