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Individual Calculations October 2018 |
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| Cigan, Jason Total change: -14.80 | |   |
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| 68th Annual Oregon Open | Portland, Oregon | USA | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 2026 | 2.00 | 5 | -0.74 | 20 | -14.80 | |
|  Chen, Minda | | wc | 1820 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | |  Zhang, Derek | | | 2101 | USA | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Gatica, Jose | | | 1962 | USA | 1.00 | 1 | 0.41 | 20 | 8.20 | | | Zhang, Eric | | | 2030 | USA | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Levine, Joseph | | | 2025 | USA | 0.00 | 1 | -0.50 | 20 | -10.00 | |
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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