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Individual Calculations September 2017 |
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| Campbell, Ian Total change: 6.60 | |   |
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| 104th British Championships Over 65 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 1983 | 3.50 | 6 | 0.33 | 20 | 6.60 | |
|  Holland, Ray J | | | 1707 | WLS | 0.50 | 1 | -0.33 | 20 | -6.60 | |  Macrae, James S | | | 1645 | SCO | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Hutchinson, Norman A | | | 2040 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Norman, Kenneth I | c | | 2114 | ENG | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Burnett, Jim | | | 2104 | ENG | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Reuben, Stewart | c | | 2074 | ENG | 0.50 | 1 | 0.12 | 20 | 2.40 | |
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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