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Individual Calculations September 2015 |
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| Roebuck, Derek Total change: 0.00 | |   |
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| 102nd British Chess Championships Week 1 AM Open | Coventry | ENG | 2015-07-27 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2010 | 0 | 0.50 | 3 | 0.00 | 1737 | | 0.00 | |
|  Nicholson, Jim W R | | | 1988 | ENG | 0.00 | 1 | 0.00 | | 0.00 | |  Eagleton, Greg T | | | 1994 | ENG | 0.50 | 1 | 0.00 | | 0.00 | | | Iyengar, Ilya | | | 2049 | ENG | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | 102nd British Chess Championships Week 1 PM Open | Coventry | ENG | 2015-07-27 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1845 | 0 | 1.00 | 3 | 0.00 | 1720 | | 0.00 | |
| | Matthews, Adrian M S | | | 1883 | ENG | 0.50 | 1 | 0.00 | | 0.00 | | | Dalton, Joseph | | | 1825 | ENG | 0.00 | 1 | 0.00 | | 0.00 | | | Gartside, Carl | | | 1826 | ENG | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | | | 31st Hampstead Weekend Congress: Under 2200 | London | ENG | 2015-08-15 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1896 | 0 | 0.50 | 4 | 0.00 | 1574 | | 0.00 | |
| | Shepley, Julien M | | | 1983 | ENG | 0.00 | 1 | 0.00 | | 0.00 | | | French, Max | | | 1816 | ENG | 0.50 | 1 | 0.00 | | 0.00 | | | Disu, Kayode | | | 1922 | ENG | 0.00 | 1 | 0.00 | | 0.00 | | | Bryant, Jon | | | 1862 | ENG | 0.00 | 1 | 0.00 | | 0.00 | |
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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