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Individual Calculations September 2021 |
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| Ai, Evan Zihao Total change: 48.40 | |   |
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| 26th Annual Pacific Coast Open - Premier | Van Nuys, California | USA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1916 | 1793 | 3.00 | 6 | 0.88 | 40 | 35.20 | |
|  Wu, Derek | | | 2128 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Wang, Xiexin | | | 2086 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Shevkunov, Vladyslav | | | 1890 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Phares, Eric | | | 1852 | USA | 1.00 | 1 | 0.58 | 40 | 23.20 | | | Weng, Nicholas Ruogu | | | 1676 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Shivakumar, Shawnak | | | 1865 | USA | 1.00 | 1 | 0.60 | 40 | 24.00 | |
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) | | | | 11th Annual Central California Open - Open | Fresno, California | USA | 2021-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1848 | 1869 | 3.00 | 5 | 0.33 | 40 | 13.20 | |
| | Guo, Andrew | | | 1674 | USA | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Sevillano, Enrico | g | | 2269 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Karunakaran, Kapilan | | | 1531 | USA | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Nathan, Krishna | | | 1950 | USA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Zhang, Cindy | | | 1817 | USA | 1.00 | 1 | 0.43 | 40 | 17.20 | | | * 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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