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Individual Calculations March 2020 |
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| Perrett, David C Total change: 2.20 | |   |
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| 2019/20 4NCL Div 4 Rounds 5 - 6 | Maidenhead | ENG | 2020-02-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1792 | 1941 | 2.00 | 2 | 0.60 | 20 | 12.00 | |
|  Chong, Kimberly | | | 1786 | WLS | 1.00 | 1 | 0.29 | 20 | 5.80 | |  Moore, Gillian A | | | 1798 | ENG | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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 2019/2020 Round 4 | Merthyr Tydfil | WLS | 2020-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1950 | 1941 | 0.00 | 1 | -0.49 | 20 | -9.80 | |
| | Jones, Derek | | | 1950 | WLS | 0.00 | 1 | -0.49 | 20 | -9.80 | |
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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