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Individual Calculations February 2023 |
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| Chovanec, Alice Total change: 54.80 | |   |
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| 11th annual Boston Chess Congress - U2100 Section | Boston MA | USA | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1763 | 1339 | 1.00 | 3 | 0.78 | 40 | 31.20 | |
|  Xu, Jayden | | | 1663 | USA | 1.00 | 1 | 0.87 | 40 | 34.80 | |  Boucher, Logan | | | 1827 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Uwakwe, Michael | | | 1798 | USA | 0.00 | 1 | -0.05 | 40 | -2.00 | |
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) | | | | 55th annual Liberty Bell Open - U2100 | Philadelphia, PA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1614 | 1339 | 1.00 | 2 | 0.57 | 40 | 22.80 | |
| | Zhu, Florina | | | 1428 | USA | 1.00 | 1 | 0.62 | 40 | 24.80 | | | Qian, Bobby | | | 1800 | USA | 0.00 | 1 | -0.05 | 40 | -2.00 | |
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) | | | | 60th Annual Baltimore Open - U2200 | Linthicum Heights, MD | USA | 2023-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1680 | 1339 | 0.50 | 3 | 0.02 | 40 | 0.80 | |
| | Haskin, Zachary | | | 1791 | USA | 0.00 | 1 | -0.06 | 40 | -2.40 | | | Brown, Wilbert Alexander | | | 1816 | USA | 0.50 | 1 | 0.45 | 40 | 18.00 | | | Shetty, Saharsh Darsh | | | 1434 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | |
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) | | |
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