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Individual Calculations September 2021 |
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| Wang, Lilian Total change: 25.60 | |   |
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| 2021 North American Youth Chess Championships - Girls Under 14 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1533 | 1486 | 1.00 | 4 | -0.86 | 40 | -34.40 | |
|  Rajaram, Anika | | wc | 1513 | USA | 0.50 | 1 | 0.04 | 40 | 1.60 | |  Tang, Zoey | | | 1886 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kaur, Aradh | | | 1436 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Yang, Adelynne | | | 1297 | USA | 0.50 | 1 | -0.25 | 40 | -10.00 | | | * 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 |
| 1606 | 1486 | 3.00 | 4 | 1.50 | 40 | 60.00 | |
| | Jackson, Cayden | | | 1414 | USA | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Ananth, Ananya | | | 1405 | USA | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Fischer, Robert J | | | 1886 * | USA | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Jegan, Alan | | | 1720 | USA | 0.50 | 1 | 0.29 | 40 | 11.60 | | | * 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) | | |
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