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Individual Calculations August 2019 |
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| Portman, Carl S Total change: -15.40 | |   |
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| 106th British Championships Atkins | Torquay | ENG | 2019-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1918 | 1883 | 1.50 | 5 | -0.77 | 20 | -15.40 | |
|  Blades, Nigel W | | | 2033 | ENG | 0.50 | 1 | 0.20 | 20 | 4.00 | |  Bolt, Graham | | | 1973 | ENG | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Girdlestone, Paul C | | | 2005 | ENG | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Wells, Tony D | | | 1850 | ENG | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Lampard, Alice | | | 1729 | SCO | 0.00 | 1 | -0.71 | 20 | -14.20 | |
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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