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Individual Calculations June 2018 |
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| Jin, Derek Total change: 26.80 | |   |
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| 27th Annual Eastern Class Championship | Sturbridge, Massachusetts | USA | 2018-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 1783 | 1.50 | 3 | 0.86 | 40 | 34.40 | |
|  Samadashvili, Martha | | wf | 2070 | USA | 0.50 | 1 | 0.34 | 40 | 13.60 | |  Tang, Jason | | | 1964 | USA | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Kavi, Nithin | | | 2008 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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) | | | | 87th Massachusetts Open | Marlboro, Massachusetts | USA | 2018-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1942 | 1783 | 1.00 | 4 | -0.19 | 40 | -7.60 | |
| | Liang, Dustin | | | 1830 | USA | 0.50 | 1 | 0.07 | 40 | 2.80 | | | Abdi, Farzad | | | 2081 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Chen, Maxwell D | | | 1892 | USA | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Tang, Jason | | | 1964 | USA | 0.50 | 1 | 0.24 | 40 | 9.60 | |
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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