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Individual Calculations December 2017 |
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| Cukovs, Oleg Total change: 4.80 | |   |
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| Preston Chess Congress | Preston | ENG | 2017-11-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 1901 | 2.00 | 4 | 0.24 | 20 | 4.80 | |
|  Rahulan, Thivyaa | | | 1737 | ENG | 1.00 | 1 | 0.28 | 20 | 5.60 | |  Surtees, Mike J | | | 2122 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Bimpson, Tom | | | 2009 | ENG | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Pink, Joshua | | | 1925 | ENG | 1.00 | 1 | 0.53 | 20 | 10.60 | |
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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