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Individual Calculations February 2023 |
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| Hughes, John Lodger Total change: 10.80 | |   |
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| 11th annual Boston Chess Congress - Premier | Boston MA | USA | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2158 | 2215 | 3.00 | 5 | 0.16 | 20 | 3.20 | |
|  Groff, Jordan | | | 1852 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Price, Alan Curtis | | | 1905 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Zhou, Jianchao | g | | 2550 | CHN | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Belous, Vladimir | g | | 2512 | RUS | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Feng, Eric | | | 1969 | USA | 0.50 | 1 | -0.31 | 20 | -6.20 | |
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) | | | | 55th annual Liberty Bell Open - Major | Philadelphia, PA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2006 | 2215 | 5.50 | 7 | 0.38 | 20 | 7.60 | |
| | Dean, Edward Thorpe | | | 1858 | USA | 0.50 | 1 | -0.39 | 20 | -7.80 | | | Tay, Brian | | | 1851 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Luger, Sam | | | 1889 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Bagchi, Sounak | | | 1811 | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Yakubov, Mardon | | | 2087 | UZB | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Molner, Mackenzie S | g | | 2467 | USA | 0.50 | 1 | 0.31 | 20 | 6.20 | | | Mou, Iris | | wf | 2080 | USA | 1.00 | 1 | 0.32 | 20 | 6.40 | |
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) | | |
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