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Individual Calculations September 2023 |
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| Cheng, Claire Ziyun Total change: 49.20 | |   |
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| 28th annual Bradley Open - U2100 | Windsor Locks, CT | USA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1649 | 1455 | 1.00 | 2 | 0.50 | 40 | 20.00 | |
|  Diao, Sujia | | | 1603 | USA | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Hardin, John Michael | | | 1694 | USA | 0.00 | 1 | -0.20 | 40 | -8.00 | |
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 14 Female | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1643 | 1455 | 2.50 | 6 | 0.73 | 40 | 29.20 | |
|  Gaw, Chloe | | | 1874 | USA | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Fausto, Aliana | | | 1320 | USA | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Wang, Chloe | | | 1713 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Mayorga Araya, Sofia | | wc | 1871 | CRC | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Li, Emma | | | 1520 | USA | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Jiang, Hanxi | | | 1559 | CAN | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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) | | |
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