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Individual Calculations August 2021 |
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| Obrien, Bret Thomas Total change: 22.80 | |   |
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| 49th Annual World Open - Under 2000 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1795 | 1654 | 1.50 | 3 | 0.57 | 40 | 22.80 | |
|  Rao, Anjaneya | | | 1773 | USA | 1.00 | 1 | 0.66 | 40 | 26.40 | |  Chen, Danni | | | 1837 | USA | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Chieh, Ting Shih | | | 1776 | MAS | 0.50 | 1 | 0.17 | 40 | 6.80 | |
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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