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Individual Calculations February 2020 |
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| Su, Ethan Total change: 24.80 | |   |
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| 2020 Charlotte Open - U2200 | Charlotte, North Carolina | USA | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1783 | 1734 | 2.50 | 5 | 0.32 | 40 | 12.80 | |
|  Su, Kenneth | | | 1940 | USA | 0.00 | 1 | -0.24 | 40 | -9.60 | |  Cheng, Leon | | | 1789 | USA | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Kumar, Asha | | | 1627 | USA | 1.00 | 1 | 0.35 | 40 | 14.00 | | | McCartney, Patrick | | | 1858 | USA | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Jiang -Nc, Andrew | | | 1702 | USA | 1.00 | 1 | 0.46 | 40 | 18.40 | |
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) | | | | 52nd Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2020-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2007 | 1734 | 1.50 | 6 | 0.30 | 40 | 12.00 | |
| | Dehmelt, Karl | f | | 2134 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kurtz, Eric | | | 2064 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Koganov, Mikhail | | | 2134 * | USA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Colding, Ernest | | | 2063 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Tahmassebi, Bijan | | | 2013 | USA | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Song, Aiden | | | 1635 | USA | 0.50 | 1 | -0.14 | 40 | -5.60 | | | * 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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