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Individual Calculations May 2018 |
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| Boztas, Lana Total change: 7.40 | |   |
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| CCF CHRISTMAS LONG PLAY CONGRESS MAJOR March | London | ENG | 2018-03-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1416 | 1463 | 2.50 | 4 | 0.26 | 20 | 5.20 | |
|  Gliddon, Daniel J | | | 1428 | ENG | 1.00 | 1 | 0.45 | 20 | 9.00 | |  Wallis, David | | | 1508 | ENG | 0.00 | 1 | -0.44 | 20 | -8.80 | | | Meaton, Arthur H | | | 1248 | ENG | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Denney, Simon C | | | 1480 | ENG | 0.50 | 1 | 0.02 | 20 | 0.40 | |
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) | | | | CCF WINTER CHESS LONG PLAY RESULTS APRIL A | London | ENG | 2018-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1320 | 1466 | 1.50 | 2 | 0.11 | 20 | 2.20 | |
| | Lam, Kai | | | 1307 | ENG | 0.50 | 1 | -0.21 | 20 | -4.20 | | | Yu, Tim | | | 1333 | ENG | 1.00 | 1 | 0.32 | 20 | 6.40 | |
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) | | |
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