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Individual Calculations February 2023 |
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| Chen, Derek Total change: 19.60 | |   |
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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 |
| 2001 | 1811 | 2.00 | 4 | 0.98 | 20 | 19.60 | |
|  Bryant, Todd Charles | | | 2087 | USA | 0.50 | 1 | 0.33 | 20 | 6.60 | |  Liu, Kelsey | | | 1974 | USA | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Ramanathan, Suraj | | | 2009 | USA | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Terrie, Henry L | | | 1935 | USA | 0.50 | 1 | 0.17 | 20 | 3.40 | |
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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