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Individual Calculations October 2015 |
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| Cohen, Frederic S Total change: -13.40 | |   |
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| 2015 Illinois Open State Chess Championship | Northbrook, Illinois | USA | 2015-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1813 | 1741 | 1.00 | 4 | -0.67 | 20 | -13.40 | |
|  Mhaskar, Rohan | | | 2078 | USA | 0.00 | 1 | -0.12 | 20 | -2.40 | | | McLaughlin, James F | | | 1982 | USA | 0.00 | 1 | -0.20 | 20 | -4.00 | |  Gan, Aaron X | | | 1453 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Carey, Aidan M | | | 1737 | USA | 0.00 | 1 | -0.51 | 20 | -10.20 | |
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) | | |
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