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Individual Calculations November 2009 |
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| Hughes, John L. Total change: 16.75 | |   |
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| 65th Ohio Chess Congress | Dayton, Ohio | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2134 | 2004 | 2.00 | 4 | 0.67 | 25 | 16.75 | |
|  Cao, Kevin | | | 1966 | USA | 1.00 | 1 | 0.45 | 25 | 11.25 | | | Casden, Alan | | | 2128 | USA | 0.50 | 1 | 0.17 | 25 | 4.25 | | | Meekins, Kris | | | 2195 | USA | 0.50 | 1 | 0.25 | 25 | 6.25 | |  Stopa, John | | | 2246 | USA | 0.00 | 1 | -0.20 | 25 | -5.00 | |
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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