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Individual Calculations September 2023 |
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| Li, Sophie Total change: -31.20 | |   |
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| 31st annual Southern Open - U2100 | Orlando, FL | USA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1491 | 1495 | 0.50 | 2 | -0.51 | 40 | -20.40 | |
|  Hariharan, Sivaji | | | 1679 | FID | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Jagan, Aashish | | | 1302 | USA | 0.50 | 1 | -0.25 | 40 | -10.00 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 10 Female | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1544 | 1495 | 1.50 | 4 | -0.27 | 40 | -10.80 | |
| | Cupaban Alonso, Luciana | | | 1176 | COL | 1.00 | 1 | 0.13 | 40 | 5.20 | |  Yang, Aimee | | | 1598 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Zhang, Michelle | | | 1870 | CAN | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Xu, Melissa | | | 1532 | USA | 0.50 | 1 | 0.05 | 40 | 2.00 | |
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) | | |
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