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Individual Calculations September 2021 |
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| Su, Ethan Total change: 26.80 | |   |
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| 51st Annual Continental Open - Under 2200 | Sturbridge, Massachusetts | USA | 2021-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 1794 | 3.00 | 6 | 1.24 | 40 | 49.60 | |
|  Barash, Anton | | | 1984 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Chin, Spencer | | | 1862 | USA | 1.00 | 1 | 0.59 | 40 | 23.60 | |  Sun, Ryan | | | 1954 | USA | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Hu, Alexander C | | | 1979 | USA | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Kanli, Alperen | | | 1923 | AZE | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Sage, J Timothy | | | 2010 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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 |
| 1780 | 1794 | 1.50 | 4 | -0.57 | 40 | -22.80 | |
| | Gonzalez Zharikov, Andrey | | | 1846 | MEX | 1.00 | 1 | 0.57 | 40 | 22.80 | | | Wang, Ryan R | | | 1741 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Wilson, Ronen | | | 1893 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Oberai, Vikram | | | 1638 | USA | 0.00 | 1 | -0.71 | 40 | -28.40 | |
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) | | |
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