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Individual Calculations October 2023 |
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| Zhang, Ryan Total change: 12.40 | |   |
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| 2023 Illinois Open State Championship - Open section | Northbrook, IL | USA | 2023-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1660 | 1500 | 2.00 | 4 | 0.77 | 40 | 30.80 | |
|  Benedek, Roy | | | 1733 | USA | 0.50 | 1 | 0.29 | 40 | 11.60 | |  Raj, Ria | | | 1450 | USA | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Chen, Anthony Deyou | | | 1815 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Baker, Aidan | | | 1641 | USA | 0.50 | 1 | 0.19 | 40 | 7.60 | |
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) | | | | CCC Monthly Swiss September 2023 | Chicago, IL | USA | 2023-09-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1734 | 1500 | 0.00 | 2 | -0.46 | 40 | -18.40 | |
| | Chen, Megan | | | 1605 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Hart, Vincent J | | | 1863 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | |
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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