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Individual Calculations May 2019 |
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| Kobryn, Peter J Total change: 4.40 | |   |
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| 2019 Bolton Easter Congress | Bolton | ENG | 2019-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 1884 | 1.00 | 3 | 0.11 | 40 | 4.40 | |
|  Surtees, Mike J | | | 2087 | ENG | 0.00 | 1 | -0.24 | 40 | -9.60 | |  Doran, Chris | | | 1965 | ENG | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Mason, Donald J | | | 2065 | ENG | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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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