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Individual Calculations February 2018 |
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| Pratley, Ian Total change: 13.00 | |   |
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| CCF WINTER CHESS 2017-18 LONGPLAY JANUARY 2018 A | London | ENG | 2018-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1603 | 1545 | 1.50 | 2 | 0.65 | 20 | 13.00 | |
|  O`neill, Tom C | | | 1518 | SCO | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Kane, Frank G | | | 1688 | ENG | 0.50 | 1 | 0.19 | 20 | 3.80 | |
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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