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Individual Calculations September 2013 |
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| Lampman, Becca Total change: 29.70 | |   |
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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 |
| 1953 | 1957 | 2.50 | 3 | 0.99 | 30 | 29.70 | |
|  Avirneni, Thanu | | | 1818 | USA | 1.00 | 1 | 0.31 | 30 | 9.30 | |  Xiang, Ellen | | | 1990 | USA | 1.00 | 1 | 0.55 | 30 | 16.50 | | | Mendoza, Luisa Mercado | | wf | 2051 | COL | 0.50 | 1 | 0.13 | 30 | 3.90 | |
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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