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Individual Calculations December 2019 |
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| Lyth, John D Total change: -18.20 | |   |
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| Preston Chess Congress 2019 | Preston | ENG | 2019-11-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1993 | 1958 | 0.50 | 3 | -0.91 | 20 | -18.20 | |
|  Kolbus, Dietmar | m | | 2294 | GER | 0.00 | 1 | -0.12 | 20 | -2.40 | |  Doherty, Paul | | | 1727 | ENG | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Rathbone-Jones, Ifan | | | 1958 | WLS | 0.00 | 1 | -0.50 | 20 | -10.00 | |
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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