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Individual Calculations July 2021 |
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| Pruess, David Total change: -15.10 | |   |
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| 2021 National Open - Championship | Las Vegas, Nevada | USA | 2021-06-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 2336 | 3.00 | 6 | -1.51 | 10 | -15.10 | |
|  Rorrer, Grayson | | | 2117 | USA | 0.50 | 1 | -0.28 | 10 | -2.80 | |  Hakobyan, Eduard E | | | 2127 | USA | 0.50 | 1 | -0.27 | 10 | -2.70 | | | Lu, Ming | | | 2149 | USA | 0.00 | 1 | -0.74 | 10 | -7.40 | | | Singh, Hersh | | | 2102 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Wu, Rochelle | | wm | 2144 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Tian, Eddy | | | 2204 | USA | 0.00 | 1 | -0.68 | 10 | -6.80 | |
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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