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Individual Calculations July 2023 |
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| Zhang, Michelle Total change: -16.80 | |   |
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| 32nd annual Chicago Open - U2100 Section | Wheeling, IL | USA | 2023-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1747 | 1443 | 0.50 | 5 | -0.39 | 40 | -15.60 | |
|  Skorobogatykh, Andrei | | | 1856 | RUS | 0.00 | 1 | -0.07 | 40 | -2.80 | |  Hoffman, Jesse N | | | 1497 | USA | 0.50 | 1 | 0.08 | 40 | 3.20 | | | Rojas, Youn Sun | | | 1610 | COL | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Villar, Jose | | | 1892 | USA | 0.00 | 1 | -0.06 | 40 | -2.40 | | | McClanahan, Bryce | | | 1882 | USA | 0.00 | 1 | -0.06 | 40 | -2.40 | |
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) | | | | 2023 National Open - Under 2100 | Las Vegas, NV | USA | 2023-06-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1794 | 1443 | 0.50 | 4 | -0.03 | 40 | -1.20 | |
| | Pulley, Alvin J | | | 1714 | USA | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Jammalamadaka, Vihaan | | | 1838 | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Yang, Andersen | | | 1984 | USA | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Macartney-Filgate, Bruce | | | 1639 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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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