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Individual Calculations January 2020 |
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| Bednarz, Bernard Total change: 36.00 | |   |
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| 55th Annual American Open - U2200 | Costa Mesa, California | USA | 2019-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1702 | 1721 | 4.00 | 6 | 0.82 | 40 | 32.80 | |
|  Duckworth, William | f | | 2121 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Gu, Crystal | | | 1363 | USA | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Chen, Aidan | | | 1585 | USA | 0.50 | 1 | -0.18 | 40 | -7.20 | | | Caluza, Severo | | | 1556 | CAN | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Hudson, Quinn | | | 1786 | USA | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Mathe, Lennart | | | 1802 | USA | 0.50 | 1 | 0.11 | 40 | 4.40 | | | * 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) | | | | 2019 Bronstein Memorial FIDE | Los Angeles, California | USA | 2019-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1771 | 1721 | 2.00 | 4 | 0.17 | 40 | 6.80 | |
| | Petrosyan, Alexan | | | 1666 | ARM | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Muratov, Sergei | f | | 2121 * | RUS | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Xie, Bryan | | | 1833 | USA | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Jayson, Mitch | | | 1463 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | | | * 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) | | | | 2019 Bay Area Winter Championship | Santa Clara, CA | USA | 2019-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1804 | 1721 | 1.50 | 4 | -0.09 | 40 | -3.60 | |
| | Cheng, Daniel | | | 2000 | USA | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Nathan, Krishna | | | 1937 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Deng, Henry | | | 1542 | USA | 0.00 | 1 | -0.73 | 40 | -29.20 | | | Lee, Yesun | | | 1737 | USA | 1.00 | 1 | 0.52 | 40 | 20.80 | |
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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