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Individual Calculations September 2013 |
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| Davis, Katya Total change: 9.60 | |   |
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| 2013 Susan Polgar Girls Invitational | St Louis, Missouri | USA | 2013-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1897 | 1668 | 1.00 | 3 | 0.32 | 30 | 9.60 | |
|  Peng, Jackie | | wf | 2035 | CAN | 0.00 | 1 | -0.10 | 30 | -3.00 | |  Xiang, Evan | | wf | 1837 | USA | 0.50 | 1 | 0.22 | 30 | 6.60 | | | Avirneni, Thanu | | | 1818 | USA | 0.50 | 1 | 0.20 | 30 | 6.00 | |
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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