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Individual Calculations July 2009 |
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| Berry, Jim Total change: -13.80 | |   |
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| Phillips 66 Chess Classic | Owasso, Oklahoma | USA | 2009-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 2054 | 1.00 | 3 | -0.56 | 15 | -8.40 | |
|  Braunlich, Thomas | | | 2173 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Wawrzaszek, Jason | | | 1911 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | |  Crockett, James M | | | 2032 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | |
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) | | | | 27th North American FIDE Open | Stillwater, Oklahoma | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 2047 | 0.00 | 1 | -0.36 | 15 | -5.40 | |
| | Orton, Bill | | | 2146 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | |
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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