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Individual Calculations September 2022 |
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| James, David J Total change: -4.80 | |   |
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| Chessable British Chess Championships 2022: Over 65 | Torquay | ENG | 2022-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1908 | 2100 | 2.00 | 3 | -0.24 | 20 | -4.80 | |
|  Williams, Stephen M | | | 1851 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Mildenhall, John | | | 1898 | ENG | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Newton, Robert A | | | 1976 | ENG | 0.50 | 1 | -0.17 | 20 | -3.40 | |
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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