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Individual Calculations August 2021 |
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| Chieh, Ting Shih Total change: -40.20 | |   |
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| 49th Annual World Open - Under 2000 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1467 | 1776 | 3.50 | 6 | -1.59 | 20 | -31.80 | |
|  Zhu, Ryan | | | 1376 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Li, Justin Y | | | 1395 | USA | 0.00 | 1 | -0.91 | 20 | -18.20 | |  Yehoshua, Roi | | | 1519 | USA | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Obrien, Bret Thomas | | | 1654 | USA | 0.50 | 1 | -0.17 | 20 | -3.40 | | | Tsyganova, Margarita | | | 1422 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Wang, Lilian | | | 1434 | USA | 0.50 | 1 | -0.38 | 20 | -7.60 | | | * 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) | | | | 22nd Annual Pittsburgh Open - Under 2100 | Pittsburgh, Pennsylvania | USA | 2021-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1376 | 1776 | 0.50 | 1 | -0.42 | 20 | -8.40 | |
| | Tang, Henry | | | 1376 * | USA | 0.50 | 1 | -0.42 | 20 | -8.40 | | | * 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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