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Individual Calculations June 2023 |
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| Perrett, David C Total change: -20.20 | |   |
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| 2022/23 4NCL Division 4 Rounds 9-11 | Warwick | ENG | 2023-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1862 | 1944 | 0.50 | 2 | -0.72 | 20 | -14.40 | |
|  Tenin, Aleksander | | | 1787 | ENG | 0.00 | 1 | -0.71 | 20 | -14.20 | |  Gregory, Keith D F | | | 1937 | ENG | 0.50 | 1 | -0.01 | 20 | -0.20 | |
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 Open 2023 Round 5 | Bridgend | WLS | 2023-05-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 1944 | 0.00 | 1 | -0.29 | 20 | -5.80 | |
| | Brown, Thomas | | | 2104 | WLS | 0.00 | 1 | -0.29 | 20 | -5.80 | |
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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