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Individual Calculations September 2019 |
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| Chatterjee, Trina Total change: -64.80 | |   |
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| 2019 BAC Summer Championship | Santa Clara, California | USA | 2019-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1638 | 1740 | 1.00 | 4 | -1.54 | 40 | -61.60 | |
|  Singireddy, Sathvik | | | 1664 | USA | 0.00 | 1 | -0.60 | 40 | -24.00 | |  Das, Rohan | | | 1610 | USA | 0.00 | 1 | -0.68 | 40 | -27.20 | | | Nachiappan, Aghilan | c | | 1544 | USA | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Cole, Christopher | | | 1734 | USA | 0.50 | 1 | -0.01 | 40 | -0.40 | |
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) | | | | 2019 NAYCC U18 Girls | Kingston | CAN | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1806 | 1757 | 3.00 | 7 | -0.08 | 40 | -3.20 | |
| | Lopez Sanchez, Anastacia Antonia | | wc | 1792 | MEX | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Demchenko, Svitlana | | wf | 2045 | CAN | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Peng, Sarah | | | 1690 | CAN | 0.00 | 1 | -0.59 | 40 | -23.60 | | | Karelina, Polina | | wc | 1689 | BAH | 1.00 | 1 | 0.41 | 40 | 16.40 | | | Deng, Queena | | wf | 1822 | USA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Cao, Yingying Lucy | | | 1704 | CAN | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Jie, Tianhui Cindy | | | 1902 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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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