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Individual Calculations July 2023 |
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| Chen, Derek Total change: 24.80 | |   |
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| 32nd annual Chicago Open - Open Section | Wheeling, IL | USA | 2023-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2028 | 1848 | 3.50 | 9 | 0.98 | 20 | 19.60 | |
|  Amburgy, Ryan | f | | 2246 | USA | 0.50 | 1 | 0.42 | 20 | 8.40 | |  Clayton, Ryan Daniel | | | 2157 | USA | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Takahashi, Michael John | | | 2051 | USA | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Ehsani, Yassamin | | wf | 2037 | USA | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Mattson, Dane | | | 2031 | USA | 0.00 | 1 | -0.26 | 20 | -5.20 | | | McConnell, Griffin Thomas | | | 1995 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Gaw, Chloe | | | 1911 | USA | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Wofford, Matthew | | | 1999 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Nair, Ajitesh | | | 1822 | USA | 1.00 | 1 | 0.46 | 20 | 9.20 | |
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) | | | | 16th annual Philadelphia International | Philadelphia, PA | USA | 2023-06-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 1823 | 2.50 | 8 | 0.26 | 20 | 5.20 | |
| | Jacobson, Aaron | f | | 2301 | USA | 0.00 | 1 | -0.05 | 20 | -1.00 | | | Yanayt, Eugene | f | | 2060 | USA | 1.00 | 1 | 0.80 | 20 | 16.00 | | | Matta, Nicholas F | | | 2226 | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Prudhvi Kumar, V | | | 2083 | IND | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Martin, Sam B | | | 2016 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Vega, Isaac | | | 1763 | USA | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Rizzo, Tobias M | | | 1970 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Mansurov, Yusuf | | | 1750 | USA | 1.00 | 1 | 0.40 | 20 | 8.00 | |
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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