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Individual Calculations January 2013 |
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| Tarhon, Brian Total change: -16.20 | |   |
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| London Chess Classic 2012: Weekend B Open | London | ENG | 2012-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1990 | 1844 | 0.50 | 4 | -0.73 | 15 | -10.95 | |
|  Clark, Ian C | | | 2039 | ENG | 0.00 | 1 | -0.25 | 15 | -3.75 | |  Coleman, Robbie | | | 2033 | SCO | 0.00 | 1 | -0.25 | 15 | -3.75 | | | White, David J | | | 1968 | ENG | 0.00 | 1 | -0.33 | 15 | -4.95 | | | White, Jonathan P J | | | 1918 | ENG | 0.50 | 1 | 0.10 | 15 | 1.50 | |
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) | | | | Coulsdon Winter Open 2012 | COULSDON | ENG | 2012-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 1844 | 0.50 | 3 | -0.35 | 15 | -5.25 | |
| | Haldane, Robin W | | | 2091 | ENG | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Balaji, Ananthanarayanan | | | 1889 | ENG | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Coates, David H | | | 2063 | ENG | 0.50 | 1 | 0.28 | 15 | 4.20 | |
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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