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Individual Calculations September 2015 |
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| Graham, William M Total change: -76.40 | |   |
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| 102nd British Chess Championships Under 180 | Coventry | ENG | 2015-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1916 | 2.00 | 5 | -1.29 | 40 | -51.60 | |
|  Horlock, Peter J | | | 1600 | ENG | 1.00 | 1 | 0.13 | 40 | 5.20 | |  Burke, Mitchell R | | | 1966 | ENG | 0.00 | 1 | -0.43 | 40 | -17.20 | | | Brown, Geoffrey M | | | 1726 | ENG | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Coward, Neil | | | 1831 | ENG | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Pink, Joshua | | | 1826 | ENG | 0.00 | 1 | -0.62 | 40 | -24.80 | |
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) | | | NOTE: K factor changed | | 102nd British Chess Championships Week 2 AM Open | Coventry | ENG | 2015-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2060 | 1916 | 0.00 | 4 | -1.24 | 20 | -24.80 | |
| | Gelip, Ioana | | | 2140 | ROU | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Iyengar, Ilya | | | 2049 | ENG | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Simons, Martin J | | | 2047 | ENG | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Collins, Peter M | | | 2002 | ENG | 0.00 | 1 | -0.38 | 20 | -7.60 | |
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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