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Individual Calculations July 2009 |
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| Raptis, Nick Total change: 1.95 | |   |
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| 2009 Washington Open | Spokane, Washington | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2287 | 2253 | 1.50 | 3 | 0.13 | 15 | 1.95 | |
|  Donaldson, John | m | | 2409 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | |  Bragg, David | f | | 2216 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Sinanan, Josh | | | 2235 | USA | 0.50 | 1 | -0.03 | 15 | -0.45 | |
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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