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Individual Calculations September 2017 |
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| Tunstall, Mike J Total change: -43.60 | |   |
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| 104th British Championships Over 65 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1891 | 2030 | 3.00 | 6 | -1.09 | 40 | -43.60 | |
|  Tidmarsh, David A | | | 1821 | ENG | 0.50 | 1 | -0.27 | 40 | -10.80 | |  Dennis, Nigel W | | | 1785 | ENG | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Gamble, Raymond J | | | 1894 | ENG | 0.50 | 1 | -0.18 | 40 | -7.20 | | | Kendall, Paul Sn | | | 1959 | ENG | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Valentine, Brian J | | | 1933 | ENG | 0.00 | 1 | -0.63 | 40 | -25.20 | | | Vickery, Jim E | | | 1953 | ENG | 0.50 | 1 | -0.11 | 40 | -4.40 | |
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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