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Individual Calculations September 2023 |
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| Sun, Ethan Total change: 78.40 | |   |
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| 1000GM Summer Championship - Open | Sunnyvale, CA | USA | 2023-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1810 | 1590 | 2.00 | 6 | 0.40 | 40 | 16.00 | |
|  Caballero, Mitzy | | wm | 2042 | PER | 0.00 | 1 | -0.06 | 40 | -2.40 | |  Zhou, Ivan | | | 1625 | USA | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Mei, Ethan R | | | 1554 | USA | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Zapata, Karen | | wm | 2061 | ESP | 0.00 | 1 | -0.05 | 40 | -2.00 | | | Patil, Yashas | | | 1746 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Hao, Max | | | 1833 | USA | 0.50 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | 13th annual Central California Open - Major | Fresno, CA | USA | 2023-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1725 | 1590 | 0.50 | 3 | -0.46 | 40 | -18.40 | |
| | Lee, Yesun Kate | | wc | 1766 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Molodyk, Mikhail Alexandrovic | | | 1743 | RUS | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Wang, Leo Q | | | 1667 | USA | 0.00 | 1 | -0.39 | 40 | -15.60 | |
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) | | | | 1000GM 2023 August Bona FIDE Swiss - Open | Sunnyvale, CA | USA | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1845 | 1590 | 3.00 | 5 | 2.02 | 40 | 80.80 | |
| | Su, Alexander | | | 1727 | USA | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Yao, Hanchi | | | 1810 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Wen, Kally | | wc | 1811 | USA | 1.00 | 1 | 0.78 | 40 | 31.20 | | | Biyiasas, Theo | | | 1955 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Qin, Vincent | | | 1920 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | |
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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