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Individual Calculations September 2009 |
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| Hurn, Robert Aj Total change: -16.20 | |   |
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| South Wales International Open | Pontypridd | WLS | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1951 | 1873 | 0.50 | 4 | -1.08 | 15 | -16.20 | |
|  Waterfield, John W | | | 2019 | ENG | 0.00 | 1 | -0.30 | 15 | -4.50 | |  Vickery, Steve | | | 1782 | WLS | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Van Kemenade, Rudy | | | 1994 | WLS | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Gosling, Brian G E | | | 2010 | ENG | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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) | | |
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