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Individual Calculations February 2020 |
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| Zhang, Samuel Total change: 59.60 | |   |
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| 46th Annual Eastern Open | Falls Church, Virginia | USA | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 1996 | 4.50 | 6 | 1.41 | 40 | 56.40 | |
|  Samant, Neil | | | 1764 | USA | 0.50 | 1 | -0.29 | 40 | -11.60 | |  Rehle, Thomas | | | 1910 | USA | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Dougherty, Michael | f | | 2098 | CAN | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Samuelson, Andrew | f | | 2113 | USA | 1.00 | 1 | 0.66 | 40 | 26.40 | | | Luo, Terry | | | 2011 | USA | 0.50 | 1 | 0.02 | 40 | 0.80 | | | Siamon, David | | | 1994 | USA | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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) | | | | 2020 Chesapeake Open - Championship | Rockville, Maryland | USA | 2020-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 2039 | 3.00 | 5 | 0.08 | 40 | 3.20 | |
| | Modi, Ethan | | | 1801 | USA | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Kaufman, Lawrence Charles | g | | 2195 | USA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Senft, Sean | | | 2018 | USA | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Sriniaiyer, Sudarshan | | | 2028 | USA | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Yehamandram Sridhar, Yogeshwar | | | 1821 | IND | 1.00 | 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) | | |
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