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Individual Calculations September 2011 |
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| O`Neill, Julie Ann Total change: -45.30 | |   |
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| 2011 FIDE Continental America's Amateur Chess Championship | Rosemont, Illinois | USA | 2011-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1891 | 1855 | 0.00 | 2 | -0.93 | 30 | -27.90 | |
|  Heung, Christopher | | | 2109 | USA | 0.00 | 1 | -0.19 | 30 | -5.70 | | | Pamatmat, Jordan J | | | 1672 | USA | 0.00 | 1 | -0.74 | 30 | -22.20 | |
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) | | | | 2011 US Senior Open | Houston, Texas | USA | 2011-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2122 | 1855 | 0.00 | 3 | -0.58 | 30 | -17.40 | |
| | Jones Jr, Joe C | | | 1968 | USA | 0.00 | 1 | -0.35 | 30 | -10.50 | |  Braunlich, Thomas | | | 2204 | USA | 0.00 | 1 | -0.11 | 30 | -3.30 | | | Parreiras-Horta, Cesar | | | 2194 | BRA | 0.00 | 1 | -0.12 | 30 | -3.60 | |
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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