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Individual Calculations August 2021 |
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| Qian, Bill Ningyuan Total change: 4.80 | |   |
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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 |
| 1604 | 1604 | 2.00 | 4 | 0.12 | 40 | 4.80 | |
|  Goldstein, Arav Micah | | | 1730 | USA | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Yang, Maxwell Z | | | 1204 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Rangan, Ananth | | | 1760 | USA | 0.00 | 1 | -0.29 | 40 | -11.60 | |  Vuglar, Shanon Leigh | | | 1723 | AUS | 1.00 | 1 | 0.66 | 40 | 26.40 | | | * 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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