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Individual Calculations December 2021 |
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| Berkley, Darrin K Total change: -4.80 | |   |
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| 2021 Northern Virginia Open | Dulles, Virginia | USA | 2021-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1607 | 1683 | 1.50 | 3 | -0.24 | 20 | -4.80 | |
|  Parsheh, Arshia | | | 1555 | USA | 1.00 | 1 | 0.33 | 20 | 6.60 | |  Colorado, Francisco Alonso | | | 1984 | USA | 0.50 | 1 | 0.35 | 20 | 7.00 | | | Nguyen, Chance Jolie | | wc | 1283 * | USA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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