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Individual Calculations January 2015 |
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| Briggs, John Nicholas Total change: -8.60 | |   |
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| 23rd Hampstead Weekend Congress: Under 2200 | London | ENG | 2014-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1717 | 1979 | 2.00 | 3 | -0.43 | 20 | -8.60 | |
|  Samadov, Samir | | | 1600 | ENG | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Haridas, Girinath | | | 1815 | ENG | 0.00 | 1 | -0.72 | 20 | -14.40 | |  Norman, Nigel | | | 1735 | ENG | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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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