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Individual Calculations April 2023 |
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| Hewitt, William Total change: 13.60 | |   |
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| Welsh Chess Premier League Open 2023 Round 2 | Bridgend | WLS | 2023-03-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1965 | 1983 | 1.00 | 1 | 0.47 | 20 | 9.40 | |
|  Vlkova, Anezka | | | 1965 | CZE | 1.00 | 1 | 0.47 | 20 | 9.40 | |
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) | | | | 2022/23 4NCL Division 3 East Rounds 7-8 | Daventry | ENG | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1871 | 1983 | 1.50 | 2 | 0.21 | 20 | 4.20 | |
| | Rubeck, Jonathan | | | 1755 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | |  Kemp, Paul R | | | 1986 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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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