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Individual Calculations February 2020 |
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| Coffman, Charles Z Total change: 8.60 | |   |
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| Tim Just Winter Open XXXVII | Schaumburg, Illinois | USA | 2020-01-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2001 | 1785 | 2.00 | 4 | 1.06 | 20 | 21.20 | |
|  Liang, Justin Sun | | | 2070 | USA | 1.00 | 1 | 0.84 | 20 | 16.80 | | | Neal Ii, James Alex | | | 2095 | USA | 0.00 | 1 | -0.14 | 20 | -2.80 | |  Ancheta, Rene | | | 1975 | USA | 1.00 | 1 | 0.75 | 20 | 15.00 | | | Hoesley, Aria | | | 1865 | USA | 0.00 | 1 | -0.39 | 20 | -7.80 | |
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) | | | | Chicago Chess Center 3rd Jane Addams Memorial | Chicago, IL | USA | 2020-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1773 | 1785 | 1.00 | 3 | -0.63 | 20 | -12.60 | |
| | Zherebukh, Yaroslav | g | | 2185 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Shetty, Anshul P | | | 1534 | USA | 0.00 | 1 | -0.81 | 20 | -16.20 | | | Guha, Rohit | | | 1600 | USA | 1.00 | 1 | 0.26 | 20 | 5.20 | | | * 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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