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Individual Calculations April 2023 |
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| Bullen, Alex Total change: 9.20 | |   |
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| Welsh Spring Open 2023 | Cardiff | WLS | 2023-03-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1799 | 2148 | 4.00 | 4 | 0.48 | 20 | 9.60 | |
|  Davies, Tom | | | 1748 * | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Chong, Kimberly | | | 1699 | WLS | 1.00 | 1 | 0.06 | 20 | 1.20 | | | Jukes, Sam | | | 1906 | WLS | 1.00 | 1 | 0.20 | 20 | 4.00 | | | James, Dai | | | 1843 | WLS | 1.00 | 1 | 0.14 | 20 | 2.80 | | | * 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) | | | | 2022/23 4NCL Division 3 West Rounds 7-8 | Daventry | ENG | 2023-03-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2148 | 0.50 | 1 | -0.02 | 20 | -0.40 | |
| | Larsen, Pelle O. | | | 2137 | DEN | 0.50 | 1 | -0.02 | 20 | -0.40 | |
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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