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Individual Calculations September 2021 |
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| Jiang, Andrew Total change: -16.40 | |   |
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| 2nd Annual John D. Rockefeller III National Tournament of Elementary School State Champions | Cherry Hill, New Jersey | USA | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1723 | 1754 | 1.00 | 2 | -0.08 | 40 | -3.20 | |
|  Rao, Anjaneya Sripathy | | | 1773 | USA | 1.00 | 1 | 0.53 | 40 | 21.20 | |  Golsefidy, Sepehr | | | 1673 | USA | 0.00 | 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) | | | | 2021 North American Youth Chess Championships - Open Under 14 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1754 | 1899 | 4.00 | 7 | -0.61 | 40 | -24.40 | |
| | Macias Zamora, Jose Armando | | | 1499 * | MEX | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Srinivas, Atharva | | | 1499 * | CAN | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Pillai, Adithya | | | 1671 | USA | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Shivakumar, Shawnak | | | 1828 | USA | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Tay, Brian | | | 1800 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Xie, Bryan | c | | 1998 | USA | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Xu, Arthur | c | | 1984 | USA | 0.00 | 1 | -0.38 | 40 | -15.20 | | | * 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) | | | | 53rd Annual Atlantic Open - Major | Reston, Virginia | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2124 | 1899 | 0.50 | 1 | 0.28 | 40 | 11.20 | |
| | Luo, Terry | | | 2124 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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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