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Individual Calculations February 2018 |
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| Sonnis, Steve Total change: -10.60 | |   |
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| London Junior Chess Championships Christmas Major 2017 | London | ENG | 2017-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1741 | 1647 | 1.00 | 3 | -0.12 | 20 | -2.40 | |
|  Marlow, Ben | | | 1822 | ENG | 0.50 | 1 | 0.23 | 20 | 4.60 | |  Carter, John | | | 1707 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Somupillai, Selvarattinam Genga | | | 1695 | ENG | 0.00 | 1 | -0.43 | 20 | -8.60 | |
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) | | | | CCF DAYTIME CHESS 2017-18 JANUARY 2018 A | London | ENG | 2018-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1709 | 1641 | 0.00 | 1 | -0.41 | 20 | -8.20 | |
| | Davey, Adrian | | | 1709 | ENG | 0.00 | 1 | -0.41 | 20 | -8.20 | |
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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