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Individual Calculations November 2021 |
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| Pregon, Joseph J Total change: -2.80 | |   |
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| 2021 Cedar Rapids Open | Cedar Rapids, Iowa | USA | 2021-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1821 | 1830 | 2.00 | 4 | -0.07 | 40 | -2.80 | |
|  Kosokin, Valeriy | | | 2150 | UZB | 0.00 | 1 | -0.13 | 40 | -5.20 | |  Darr, Benjamin | | | 1934 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Jiles, David | | | 1629 | USA | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Popov, Sergey | | | 1569 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | |
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) | | | | Quad-City Chess Open 2021 | Moline, Illinois | USA | 2021-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1720 | 1830 | 2.50 | 4 | 0.00 | 40 | 0.00 | |
| | Mc Entee, Tim R | | | 1993 | USA | 1.00 | 1 | 0.72 | 40 | 28.80 | | | Rector, Richard L | | | 1507 | USA | 0.50 | 1 | -0.37 | 40 | -14.80 | | | Garrett, Daniel Za | | | 1810 | USA | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Shukla, Abhyudaya | | | 1568 | USA | 0.50 | 1 | -0.32 | 40 | -12.80 | |
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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