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Individual Calculations December 2017 |
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| McKerracher, Douglas Total change: -17.40 | |   |
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| 2017 Central London Chess Congress (Open Section) | London | ENG | 2017-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1965 | 1932 | 0.50 | 3 | -0.87 | 20 | -17.40 | |
|  Makepeace, Philip J | | | 2096 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | |  Ortiz Sanchez, Luis | | | 1868 | ESP | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Everett, Joe | | | 1932 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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) | | |
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