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Individual Calculations July 2009 |
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| Levens, David G Total change: -12.25 | |   |
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| 4NCL part 3 | Various | ENG | 2008-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2008 | 2005 | 1.50 | 4 | -0.49 | 25 | -12.25 | |
|  Twitchell, Neville H | | | 1983 | ENG | 1.00 | 1 | 0.47 | 25 | 11.75 | |  Ireland, David J | | | 1996 | ENG | 0.00 | 1 | -0.51 | 25 | -12.75 | | | Elwin, Adrian G | | | 2015 | ENG | 0.00 | 1 | -0.49 | 25 | -12.25 | | | Botham, C Paul | | | 2036 | ENG | 0.50 | 1 | 0.04 | 25 | 1.00 | |
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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