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Individual Calculations August 2021 |
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| Hua, Charles Total change: 16.80 | |   |
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| 14th Annual Philadelphia International - Expert | Philadelphia, Pennsylvania | USA | 2021-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1840 | 1958 | 3.50 | 7 | -0.87 | 40 | -34.80 | |
|  Shaffer, Alexander | | | 1847 | PUR | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Randall, Gordon Jamall | | | 1995 | USA | 0.00 | 1 | -0.45 | 40 | -18.00 | |  Liu, Kelsey | | | 1558 * | USA | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Shawkat, Saif | | | 1934 | USA | 0.00 | 1 | -0.53 | 40 | -21.20 | | | Liu, Joshua | | | 1558 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Su, Kenneth | | | 1987 | USA | 1.00 | 1 | 0.54 | 40 | 21.60 | | | Mucerino, Joseph J | | | 2002 | USA | 0.50 | 1 | 0.06 | 40 | 2.40 | | | * 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) | | | | 49th Annual World Open - Under 2200 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1871 | 1958 | 5.00 | 7 | 0.69 | 40 | 27.60 | |
| | Vidyarthi, Omya | | wc | 1812 | USA | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Papanek, Ella Sharpe | | | 1777 | USA | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Prabhu, Naveen | | | 1757 | USA | 0.50 | 1 | -0.26 | 40 | -10.40 | | | Zhurbinsky, David | c | | 1910 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Chan, Matthew M | | | 1906 | USA | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Fischer, Robert J | | | 1897 | USA | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Calderon, Rafael | | | 2037 | USA | 1.00 | 1 | 0.61 | 40 | 24.40 | |
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) | | | | 26th Annual Bradley Open - Major | Windsor Locks, Connecticut | USA | 2021-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1829 | 1958 | 2.50 | 3 | 0.60 | 40 | 24.00 | |
| | Xu, Raymond | | | 1558 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Calderon, Zachary | | | 2147 | USA | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Ye, Stephen | | | 1783 | USA | 1.00 | 1 | 0.27 | 40 | 10.80 | | | * 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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