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Individual Calculations July 2021 |
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| Norovsambuu, Badamkhand Total change: 1.80 | |   |
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| 30th Annual Chicago Open - Under 2100 | Wheeling, Illinois | USA | 2021-05-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1752 | 1974 | 4.50 | 5 | 0.67 | 20 | 13.40 | |
|  Das, Ayush | | | 1709 | USA | 1.00 | 1 | 0.18 | 20 | 3.60 | |  Peterson, Gregory Gage | | | 1807 | USA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Kozower, Ethan | | | 1574 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Platnick, Elijah Samuel | | | 1876 | USA | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Coffman, Charles Z | | | 1794 | USA | 1.00 | 1 | 0.26 | 20 | 5.20 | | | * 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) | | | | 2021 US Women's Open | Las Vegas, Nevada | USA | 2021-06-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1654 | 1974 | 1.00 | 2 | -0.72 | 20 | -14.40 | |
| | Chen, Rachel Ruoxuan | | | 1574 * | CAN | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Zheng, Carissa Angela | | | 1734 | USA | 0.50 | 1 | -0.30 | 20 | -6.00 | | | * 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) | | | | 2021 National Open - Under 2100 | Las Vegas, Nevada | USA | 2021-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1887 | 1974 | 2.00 | 3 | 0.14 | 20 | 2.80 | |
| | Imada, Todd | | | 1941 | USA | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Taylor, Michael | | | 1879 | USA | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Petrosyan, Alexander | | | 1842 | ARM | 0.00 | 1 | -0.68 | 20 | -13.60 | |
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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