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Individual Calculations August 2021 |
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| Quirke, Jeffrey L Total change: -2.20 | |   |
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| 22nd Annual Pittsburgh Open - Major | Pittsburgh, Pennsylvania | USA | 2021-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2094 | 2120 | 2.00 | 4 | -0.11 | 20 | -2.20 | |
|  Prestia, Frank | | | 1790 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | |  Smith, Bryan G | g | | 2431 | USA | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Huang, Evan Y | | | 1851 | USA | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Ngo-Tan, Don | f | | 2302 | HUN | 0.50 | 1 | 0.24 | 20 | 4.80 | |
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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