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Individual Calculations July 2010 |
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| Valentine, Brian J Total change: 19.05 | |   |
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| Four Nations Chess League (4NCL) | Various | ENG | 2009-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 1983 | 3.50 | 5 | 1.27 | 15 | 19.05 | |
|  Jaszkiwskyj, Peter | | | 1941 | ENG | 0.50 | 1 | -0.06 | 15 | -0.90 | |  Ociepka, Adrian | | | 2127 | POL | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Tunks, Dominic | | | 2076 | ENG | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Stayt, James N | | | 1996 | ENG | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Donaghay, Richard H | | | 1975 | ENG | 1.00 | 1 | 0.49 | 15 | 7.35 | |
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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