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Individual Calculations September 2023 |
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| Pregon, Joseph Jeffery Total change: 4.40 | |   |
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| 68th Iowa Open Championship | Des Moines, Iowa | USA | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1791 | 1746 | 2.50 | 5 | 0.22 | 20 | 4.40 | |
|  Volz, Michael | | | 1670 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | |  Risko, Nicholas | | | 1804 | USA | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Kosokin, Valeriy | | | 2186 | UZB | 0.00 | 1 | -0.06 | 20 | -1.20 | | | Drippe, John M | | | 1864 | USA | 0.00 | 1 | -0.34 | 20 | -6.80 | | | McGee, Isaac | | | 1433 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | |
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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