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Individual Calculations December 2017 |
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| Ortiz Sanchez, Luis Total change: 53.20 | |   |
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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 |
| 1994 | 1868 | 3.00 | 5 | 1.31 | 40 | 52.40 | |
|  Friedland, Jon S | c | | 2071 | ENG | 0.00 | 1 | -0.24 | 40 | -9.60 | |  McKerracher, Douglas | | | 1932 | SCO | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Russell, Christopher | | | 2089 | ENG | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Prior, Stephen C V | | | 2067 | ENG | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Sutton, Daniel | | | 1810 | ENG | 0.50 | 1 | -0.08 | 40 | -3.20 | |
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) | | | | 2017/18 4NCL Division 4 South Rounds 1-2 | Reading | ENG | 2017-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1682 | 1868 | 1.50 | 2 | 0.02 | 40 | 0.80 | |
| | O`byrne, Daniel | | | 1723 | ENG | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Dray-Pearce, Tristan | | | 1640 | ENG | 0.50 | 1 | -0.29 | 40 | -11.60 | |
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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