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Individual Calculations November 2021 |
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| Williamson, Kevin J Total change: 10.60 | |   |
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| British Senior Championships 2021 O50 | Milton Keynes | ENG | 2021-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1951 | 1859 | 2.50 | 5 | 0.53 | 20 | 10.60 | |
|  Botham, C Paul | | | 1944 | ENG | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Smith, Andrew Philip | f | | 2133 | IRL | 0.50 | 1 | 0.33 | 20 | 6.60 | |  Lewis, Andrew P | f | | 2243 | ENG | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Hymer, Barry | | | 1870 | ENG | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Woods, Timothy J | | | 1565 | ENG | 1.00 | 1 | 0.15 | 20 | 3.00 | |
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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