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Individual Calculations August 2019 |
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| Feng, Maggie Total change: -60.20 | |   |
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| 13th Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2019-06-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2204 | 2198 | 4.50 | 9 | -0.03 | 20 | -0.60 | |
|  Quesada Perez, Yuniesky | g | | 2598 * | CUB | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Luo, Terry | | | 2072 | USA | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Tutisani, Noe | m | | 2460 | GEO | 0.50 | 1 | 0.32 | 20 | 6.40 | | | Bartell, Thomas | m | | 2369 | USA | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Li, Max | | | 1919 | USA | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Liu, Aristo | f | | 1992 | USA | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Zhou, Aiden | | | 2074 | CAN | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Zinski, Maximilian | | | 2042 | USA | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Aaron, Deepak | | | 2310 | USA | 0.00 | 1 | -0.35 | 20 | -7.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 47th Annual World Open | Philadelphia, Pennsylvania | USA | 2019-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2267 | 2198 | 3.50 | 8 | 0.28 | 20 | 5.60 | |
| | Brattain, Mika | | | 2418 | USA | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Lapshun, Yury | m | | 2392 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Lee, Jayden | | | 1842 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Wang, Kevin | m | | 2423 | USA | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Chiku-Ratte, Olivier | f | | 2364 | CAN | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Lee, Addison | | | 2024 | USA | 1.00 | 1 | 0.27 | 20 | 5.40 | | | He, Anthony | f | | 2351 | USA | 0.50 | 1 | 0.20 | 20 | 4.00 | | | Posthuma, Joshua | f | | 2321 | USA | 0.00 | 1 | -0.33 | 20 | -6.60 | |
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) | | | | 2019 U.S. Girls' Junior Championship | Saint Louis, Missouri | USA | 2019-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 2198 | 3.00 | 9 | -3.26 | 20 | -65.20 | |
| | Samadashvili, Martha | | wf | 2124 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Cervantes, Thalia | | wm | 2147 | USA | 1.00 | 1 | 0.43 | 20 | 8.60 | | | Nguyen, Emily | | wm | 2102 | USA | 0.00 | 1 | -0.63 | 20 | -12.60 | | | Zilajeva, Veronika | | | 1855 | USA | 0.00 | 1 | -0.88 | 20 | -17.60 | | | Bykovtsev, Agata | | wm | 2012 | USA | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Yan, Ruiyang | | | 1851 | USA | 0.00 | 1 | -0.89 | 20 | -17.80 | | | Li, Rachael | | | 1798 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Yip, Carissa | f | wm | 2285 | USA | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Wu, Rochelle | | wm | 2085 | USA | 0.00 | 1 | -0.65 | 20 | -13.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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