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Individual Calculations August 2017 |
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| Zheng, Andrew Total change: -13.20 | |   |
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| 45th Annual World Open | Philadelphia, Pennsylvania | USA | 2017-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2307 | 2252 | 4.00 | 9 | 0.09 | 40 | 3.60 | |
|  Zhang, Eric M | | | 1871 | USA | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Nakar, Eylon | m | | 2476 | ISR | 1.00 | 1 | 0.78 | 40 | 31.20 | | | Brown, Michael William | m | | 2489 | USA | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Zhou, Jianchao | g | | 2595 | CHN | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Tang, Andrew | m | | 2461 | USA | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Becerra Rivero, Julio | g | | 2556 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Belliard Alonzo, Luis Manuel | | | 2126 | DOM | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Mujumdar, Sameer Suhas | | | 2089 | USA | 0.00 | 1 | -0.72 | 40 | -28.80 | | | Drake, Jason | | | 2104 | USA | 1.00 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | 2017 North American Youth Chess Championship - U18 | Morristown, New Jersey | USA | 2017-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2192 | 2272 | 5.00 | 9 | -0.42 | 40 | -16.80 | |
| | Guo, Arthur | f | | 2089 | USA | 0.50 | 1 | -0.24 | 40 | -9.60 | | | He, Tommy | f | | 2147 | USA | 0.00 | 1 | -0.67 | 40 | -26.80 | | | He, Anthony | f | | 2309 | USA | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Li, Yinshi | | | 2144 | CAN | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Vettese, Nicholas | f | | 2000 | CAN | 0.50 | 1 | -0.33 | 40 | -13.20 | | | Li, Ethan | f | | 2297 | USA | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Song, Sam | | | 2182 | CAN | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Ghatti, Sanjay | | | 2220 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Chiku-Ratte, Olivier-Kenta | f | | 2344 | CAN | 0.00 | 1 | -0.40 | 40 | -16.00 | |
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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