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Individual Calculations September 2021 |
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| Guo, Anni Total change: -21.60 | |   |
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| 2021 North American Youth Chess Championships - Girls Under 12 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1400 | 1312 | 1.50 | 5 | -0.54 | 40 | -21.60 | |
|  Bian, Erin | | | 1525 | USA | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Kaur, Jind | c | | 1157 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Cheng, Claire | | | 1203 | USA | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Ananth, Ananya | | | 1405 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Vidyarthi, Omya | | wc | 1712 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | |
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