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Individual Calculations August 2021 |
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| Chabris, Christopher F Total change: -44.60 | |   |
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| 49th Annual World Open - Open | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 2125 | 2.50 | 8 | -1.82 | 20 | -36.40 | |
|  Tang, Andrew | g | | 2525 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Harriott, Tyrell | | | 1947 | USA | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Balakrishnan, Praveen | m | | 2507 | USA | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Levine, Jack | | | 1882 | USA | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Mangalam, Shreya | | | 1997 | USA | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Velea, Anne-Marie | | wf | 2026 | USA | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Heller, Garrett | | | 2004 | USA | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Amburgy, Ryan | | | 2012 | USA | 0.00 | 1 | -0.65 | 20 | -13.00 | | | * 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) | | | | 22nd Annual Pittsburgh Open - Major | Pittsburgh, Pennsylvania | USA | 2021-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 2125 | 2.00 | 4 | -0.41 | 20 | -8.20 | |
| | Prestia, Sebastian | c | | 1725 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Shen, Christopher Yu-Shuo | f | | 2354 | USA | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Huang, Evan Y | | | 1851 | USA | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Baker, Vincent Jingwei | | | 2162 | USA | 0.00 | 1 | -0.45 | 20 | -9.00 | | | * 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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