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Individual Calculations September 2009 |
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| Williams, Ron Total change: -48.25 | |   |
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| South Wales International Open | Pontypridd | WLS | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 1944 | 0.00 | 4 | -1.93 | 25 | -48.25 | |
|  Harley-Yeo, Gareth | | | 2043 | WLS | 0.00 | 1 | -0.36 | 25 | -9.00 | |  Adebajo, Olufemi | | | 2002 | ENG | 0.00 | 1 | -0.42 | 25 | -10.50 | | | Owens, Megan R | | | 1731 | WLS | 0.00 | 1 | -0.77 | 25 | -19.25 | | | Brown, Thomas | | | 2033 | WLS | 0.00 | 1 | -0.38 | 25 | -9.50 | |
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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