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Individual Calculations September 2013 |
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| Peng, Jackie Total change: -6.30 | |   |
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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 |
| 1840 | 2035 | 2.50 | 4 | -0.42 | 15 | -6.30 | |
|  Davis, Katya | | | 1668 | USA | 1.00 | 1 | 0.10 | 15 | 1.50 | |  Vazquez Maccarini, Danitza | | wf | 1859 | PUR | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Mendoza, Luisa Mercado | | wf | 2051 | COL | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Vescovi, Katherine | c | | 1782 | BRA | 0.50 | 1 | -0.31 | 15 | -4.65 | |
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) | | | | 2013 Canadian Amateur O2000 | Kitchener | CAN | 2013-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2030 | 2012 | 3.00 | 5 | 0.61 | 15 | 9.15 | |
| | Humphreys, Michael | f | | 2188 | CAN | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Song, Guannan Terry | | | 1907 | CAN | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Chernik, Dmitry | | | 1949 | CAN | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Cormier, Adam | | | 1993 | CAN | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Semianiuk, Konstantin | | | 2114 | CAN | 0.50 | 1 | 0.14 | 15 | 2.10 | |
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) | | | | 2013 NAYCC U18G | Toronto | CAN | 2013-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1994 | 2012 | 1.50 | 4 | -0.61 | 15 | -9.15 | |
| | Kalaydina, Regina-Veronicka | | | 1958 | CAN | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Gologorsky, Wcm Rachel | | wc | 1941 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Botez, Wcm Alexandra | | wc | 2076 | CAN | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Regam, Jessica | | | 2001 | USA | 0.00 | 1 | -0.52 | 15 | -7.80 | |
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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