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Individual Calculations September 2019 |
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| Tidmarsh, David A Total change: -7.20 | |   |
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| 106th British Championships Over 65 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1877 | 1809 | 2.50 | 7 | -0.36 | 20 | -7.20 | |
|  Hewson, Brian Wr | | | 2035 | ENG | 0.00 | 1 | -0.21 | 20 | -4.20 | |  O`brien, Paul W | | | 1590 | ENG | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Kelly, Ian G | | | 2000 | ENG | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Collins, Peter M | | | 1868 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Milnes, Anthony Cp | | | 1974 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Hughes, Peter | | | 1794 | ENG | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Smith, David | | | 1878 | ENG | 0.50 | 1 | 0.10 | 20 | 2.00 | |
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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