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Individual Calculations July 2018 |
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| Sonnis, Steve Total change: 6.60 | |   |
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| CCF DAYTIME CHESS 2017-18: MAY 2018 B | Coulsdon | ENG | 2018-05-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1579 | 1616 | 0.50 | 1 | -0.05 | 20 | -1.00 | |
|  Foster, Paul | | | 1579 | ENG | 0.50 | 1 | -0.05 | 20 | -1.00 | |
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) | | | | CCF DAYTIME CHESS JUNE 2018 | London | ENG | 2018-06-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1534 | 1618 | 1.00 | 1 | 0.38 | 20 | 7.60 | |
|  Vaughan, John | | | 1534 | ENG | 1.00 | 1 | 0.38 | 20 | 7.60 | |
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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