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Individual Calculations July 2019 |
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| Sonnis, Steve Total change: -3.20 | |   |
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| CCF Daytime Chess Club 2018-19 Stage 12 | London | ENG | 2019-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1567 | 1605 | 1.50 | 3 | -0.16 | 20 | -3.20 | |
|  Allan, Brian W | | | 1633 | SCO | 0.00 | 1 | -0.46 | 20 | -9.20 | |  Foster, Paul | | | 1569 | ENG | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Clayton, David C | | | 1498 | ENG | 1.00 | 1 | 0.35 | 20 | 7.00 | |
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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