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Individual Calculations September 2021 |
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| Adewumi, Tanitoluwa Total change: 124.80 | |   |
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| 4th Annual Peter Henner Memorial - Major | Albany, New York | USA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1839 | 1844 | 2.50 | 4 | 0.49 | 40 | 19.60 | |
|  Cheng, Michael Ny | | | 1914 | USA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Bagchi, Sounak | | | 1677 | USA | 1.00 | 1 | 0.28 | 40 | 11.20 | |  Jin, Derek | | | 1880 | USA | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Xu, Bernie | | | 1885 | USA | 1.00 | 1 | 0.56 | 40 | 22.40 | |
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 12 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1703 | 1895 | 6.00 | 7 | 0.99 | 40 | 39.60 | |
| | Oi, Ryotaro | | | 1495 * | MEX | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Hiwale, Ronak | | | 1583 | USA | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Sripada, Havish | | | 1733 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Han, Johnathan | | | 1805 | CAN | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Hardaway, Brewington | c | | 2026 | USA | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Ho, Cooper | | | 1780 | USA | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Wang, Alexander J | | | 1497 | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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 |
| 2025 | 1895 | 3.50 | 5 | 1.64 | 40 | 65.60 | |
| | Peterson, Brian | | | 1915 | USA | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Katz, Alexander Ross | m | | 2295 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Zheng, Carissa Angela | | | 1819 | USA | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Tay, Brian | | | 1800 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Shahaliyev, Ismayil | m | | 2295 * | AZE | 0.50 | 1 | 0.42 | 40 | 16.80 | | | * 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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