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Individual Calculations September 2021 |
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| Luo, Will Total change: 126.00 | |   |
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| 2021 North American Youth Chess Championships - Open Under 12 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1736 | 1443 | 3.50 | 6 | 2.51 | 40 | 100.40 | |
|  Han, Johnathan | | | 1805 | CAN | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Min, Ryan | | | 1679 | USA | 1.00 | 1 | 0.80 | 40 | 32.00 | |  Goldstein, Arav Micah | | | 1680 | USA | 0.50 | 1 | 0.30 | 40 | 12.00 | | | Pang, Brian | | | 1843 * | USA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Hardaway, Brewington | c | | 1843 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Tang, Benjamin Benchen | | | 1565 | USA | 1.00 | 1 | 0.67 | 40 | 26.80 | | | * 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) | | | | 53rd Annual Atlantic Open - Under 2100 | Reston, Virginia | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1545 | 1443 | 1.00 | 1 | 0.64 | 40 | 25.60 | |
| | Fetlyaev, Aleks | | | 1545 | USA | 1.00 | 1 | 0.64 | 40 | 25.60 | |
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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