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Individual Calculations September 2023 |
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| Fei, Irene Jiao Total change: 2.00 | |   |
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| 11th Annual WIM Ruth Haring National Tournament of Girls State Champions | Grand Rapids, Michigan | USA | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1811 | 1726 | 1.00 | 3 | -0.24 | 40 | -9.60 | |
|  Yan, Ruiyang | f | wc | 2206 | USA | 0.00 | 1 | -0.05 | 40 | -2.00 | |  Wadhwa, Ananya | | | 1323 | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Paragua, Megan A | | | 1904 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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) | | | | 68th Iowa Open Championship | Des Moines, Iowa | USA | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1669 | 1726 | 2.00 | 3 | 0.29 | 40 | 11.60 | |
| | Mehlhaff, Samuel | | | 1472 | USA | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Holliman, Bob | | | 1917 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Walker, Brent P | | | 1618 | USA | 1.00 | 1 | 0.35 | 40 | 14.00 | |
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) | | |
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