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Individual Calculations October 2018 |
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| Zhang, Eric Total change: 31.20 | |   |
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| 68th Annual Oregon Open | Portland, Oregon | USA | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1981 | 2030 | 3.50 | 5 | 0.78 | 40 | 31.20 | |
|  Lopez, Francisco | | | 1630 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Roper, David | f | | 2182 | USA | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Talyansky, Seth | c | | 2187 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Moore, Michael | | | 1882 | USA | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Cigan, Jason | | | 2026 | USA | 1.00 | 1 | 0.49 | 40 | 19.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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