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Individual Calculations July 2017 |
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| Posthuma, Joshua G Total change: -12.40 | |   |
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| 26th Annual Chicago Open | Wheeling, Illinois | USA | 2017-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2236 | 2268 | 4.50 | 9 | -0.31 | 40 | -12.40 | |
|  Li, Ruifeng | g | | 2574 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | |  Guo, Arthur | f | | 2121 | USA | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Wongso, Steve | | | 1868 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Song, Michael | m | | 2423 | CAN | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Chandra, Akshat | g | | 2495 | USA | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Mathur, Rithwik | | | 2073 | USA | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Sarkar, Justin | m | | 2375 | USA | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Kelly, Joey M | | | 2039 | USA | 0.00 | 1 | -0.79 | 40 | -31.60 | | | Eckert, Doug D | f | | 2152 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | | | * 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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