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Individual Calculations February 2018 |
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| Couchman, Andrew Total change: 9.40 | |   |
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| London Junior Chess Championships Under 18, 21 & Christmas Open | London | ENG | 2017-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1569 | 1169 | 0.00 | 4 | -0.32 | 20 | -6.40 | |
|  Holton, Jake | | | 1569 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Watson, Jacob | | | 1569 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Perez Fadon, Andres | | | 1569 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Ignatovic, Ernest | | | 1569 * | LTU | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 WINTER CHESS 2017-18 LONGPLAY JANUARY 2018 A | London | ENG | 2018-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1143 | 1158 | 2.00 | 2 | 0.95 | 20 | 19.00 | |
| | Braithwaite, Paul | | | 1182 | ENG | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Rizvi, Aysha | | | 1104 | ENG | 1.00 | 1 | 0.42 | 20 | 8.40 | |
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 3-4 | Reading | ENG | 2018-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1558 | 1158 | 0.00 | 2 | -0.16 | 20 | -3.20 | |
| | Onslow, Teddy | | | 1558 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Moss, Stephen | | | 1558 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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