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Individual Calculations December 2018 |
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| Zong Jr, Davis Total change: -14.80 | |   |
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| Marshall Premier November 2018 | New York, New York | USA | 2018-11-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2032 | 2161 | 1.50 | 4 | -1.08 | 40 | -43.20 | |
|  Raparthi, Ankit | | | 1788 | USA | 0.50 | 1 | -0.40 | 40 | -16.00 | |  Bonin, Jay | m | | 2282 | USA | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Martinez, Isaac | | | 2127 | USA | 0.00 | 1 | -0.55 | 40 | -22.00 | | | Berg, George | | | 1930 | USA | 1.00 | 1 | 0.21 | 40 | 8.40 | |
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) | | | | 49th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2018-11-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2161 | 3.00 | 5 | 0.71 | 40 | 28.40 | |
| | Tripodi, Matthew | | | 1765 | USA | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Li, Ben | f | | 2374 | USA | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Girsh, Daniel | | | 1929 | USA | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Shabalov, Alexander | g | | 2532 | USA | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Bartell, Thomas | m | | 2355 | USA | 0.50 | 1 | 0.25 | 40 | 10.00 | |
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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