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Individual Calculations April 2023 |
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| Davies, Tom Total change: 19.60 | |   |
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| Welsh Spring Open 2023 | Cardiff | WLS | 2023-03-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2148 | 1581 | 0.00 | 1 | -0.02 | 40 | -0.80 | |
|  Bullen, Alex | c | | 2148 | WLS | 0.00 | 1 | -0.02 | 40 | -0.80 | |
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) | | | | 2023 Welsh Under 14 Championship | Cardiff | WLS | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1358 | 1581 | 2.00 | 2 | 0.51 | 40 | 20.40 | |
| | Kong, Emma Zihan | | | 1186 | WLS | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Sharhorodsky, Yaroslav | | | 1530 | WLS | 1.00 | 1 | 0.43 | 40 | 17.20 | |
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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