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Individual Calculations September 2023 |
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| Zhou, Ivan Total change: 112.84 | |   |
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| 1000GM Summer Championship - Open | Sunnyvale, CA | USA | 2023-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1720 | 1625 | 3.00 | 7 | 0.36 | 26 | 9.36 | |
|  Handigol, Abhishek | | | 1872 | USA | 0.00 | 1 | -0.19 | 26 | -4.94 | |  Sun, Ethan | | | 1590 | USA | 1.00 | 1 | 0.45 | 26 | 11.70 | | | Lee, Yesun Kate | | wc | 1766 | USA | 0.00 | 1 | -0.31 | 26 | -8.06 | | | Bhatta, Rohit | | | 1731 | USA | 0.00 | 1 | -0.36 | 26 | -9.36 | | | Mei, Ethan R | | | 1554 | USA | 1.00 | 1 | 0.40 | 26 | 10.40 | | | Maheshwari, Vedant | | | 1781 | USA | 0.50 | 1 | 0.21 | 26 | 5.46 | | | Patil, Yashas | | | 1746 | USA | 0.50 | 1 | 0.16 | 26 | 4.16 | |
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) | | | | WIM Ruth Haring Memorial Tuesday Night Marathon - Over 2000 Round 1-3 | San Francisco, CA | USA | 2023-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1833 | 1625 | 0.00 | 2 | -0.47 | 26 | -12.22 | |
| | Handigol, Abhishek | | | 1872 | USA | 0.00 | 1 | -0.19 | 26 | -4.94 | | | Shrauger, Alex Hay | | | 1794 | USA | 0.00 | 1 | -0.28 | 26 | -7.28 | |
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) | | | | July BAC Real Championship - MX | Milpitas, California | USA | 2023-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1700 | 1625 | 3.00 | 5 | 1.00 | 26 | 26.00 | |
| | Badhe, Ronak | | | 1738 | USA | 1.00 | 1 | 0.65 | 26 | 16.90 | | | Chinchwadkar, Om | | | 1735 | USA | 1.00 | 1 | 0.65 | 26 | 16.90 | | | Brereton, Justin | | | 1743 | USA | 0.00 | 1 | -0.34 | 26 | -8.84 | | | Mei, Ethan R | | | 1554 | USA | 0.50 | 1 | -0.10 | 26 | -2.60 | | | Bhatta, Rohit | | | 1731 | USA | 0.50 | 1 | 0.14 | 26 | 3.64 | |
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) | | | | WIM Ruth Haring Memorial Tuesday Night Marathon - Over 2000 Round 4-7 | San Francisco, CA | USA | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1687 | 1625 | 2.00 | 2 | 1.17 | 26 | 30.42 | |
| | Anderson, Michael | | | 1712 | USA | 1.00 | 1 | 0.62 | 26 | 16.12 | | | Vora, Yash Rathin | | | 1661 | USA | 1.00 | 1 | 0.55 | 26 | 14.30 | |
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 |
| 1862 | 1625 | 2.50 | 5 | 1.37 | 26 | 35.62 | |
| | Wang, Leo Q | | | 1667 | USA | 1.00 | 1 | 0.56 | 26 | 14.56 | | | Pullela, Sricharan | | | 2068 | USA | 0.50 | 1 | 0.44 | 26 | 11.44 | | | Yao, Hanchi | | | 1810 | USA | 0.00 | 1 | -0.26 | 26 | -6.76 | | | Wu, Nathan Ping-Ying | | | 1846 | CAN | 1.00 | 1 | 0.78 | 26 | 20.28 | | | Qin, Vincent | | | 1920 | USA | 0.00 | 1 | -0.15 | 26 | -3.90 | |
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 |
| 1781 | 1625 | 2.50 | 5 | 0.91 | 26 | 23.66 | |
| | Kukavica, Tony | | | 1974 | USA | 0.50 | 1 | 0.39 | 26 | 10.14 | | | Wen, Kally | | wc | 1811 | USA | 0.00 | 1 | -0.26 | 26 | -6.76 | | | Panikkath, Aditya | | | 1662 | USA | 1.00 | 1 | 0.55 | 26 | 14.30 | | | Widjaja, Luke | | | 1900 | USA | 0.00 | 1 | -0.17 | 26 | -4.42 | | | Negron, Xavier Enrique | | | 1556 | SGP | 1.00 | 1 | 0.40 | 26 | 10.40 | |
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) | | |
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