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Individual Calculations February 2023 |
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| Erskine-Pereira, Jack Total change: 28.80 | |   |
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| 29th 4NCL Congress Open | Harrogate | ENG | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2020 | 1809 | 2.00 | 5 | 0.72 | 40 | 28.80 | |
|  Walker, Martin G | f | | 2100 | ENG | 0.50 | 1 | 0.35 | 40 | 14.00 | |  Southcott-Moyers, Indy | | | 1870 | ENG | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Mosnegutu, Klauss | | | 2214 | ROU | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Surtees, Mike J | | | 2070 | ENG | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Hilton, Tim | | | 1846 | ENG | 0.50 | 1 | 0.05 | 40 | 2.00 | |
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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