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Individual Calculations January 2020 |
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| Koo, Calvin Total change: 88.40 | |   |
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| 2019 Class Warfare Championship - U1900 | Santa Clara, California | USA | 2019-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1476 | 1400 | 2.00 | 4 | 0.39 | 40 | 15.60 | |
|  Fong, Kevin Leong | | | 1572 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Liang, Ethan | | | 1388 | USA | 1.00 | 1 | 0.48 | 40 | 19.20 | |  Acharya, Venkatagiri | | | 1594 | IND | 1.00 | 1 | 0.75 | 40 | 30.00 | | | Wang, Jeffery | | | 1351 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | |
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) | | | | IM Donaldson Championship 2019 - A | San Francisco, California | USA | 2019-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1783 | 1400 | 2.00 | 2 | 1.82 | 40 | 72.80 | |
| | Lkhagvasuren, Zolboo | | | 1800 * | USA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Nyamdorj, Uranchim | | | 1765 | CAN | 1.00 | 1 | 0.90 | 40 | 36.00 | | | * 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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