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Individual Calculations September 2021 |
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| Ke, Rianne Total change: -36.40 | |   |
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| 26th Annual Pacific Coast Open - Under 2100 | Van Nuys, California | USA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1562 | 1683 | 1.00 | 1 | 0.34 | 40 | 13.60 | |
|  Chiang, Jacob | | | 1562 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | |
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) | | | | 2021 North American Youth Chess Championships - Girls Under 16 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1513 | 1674 | 5.00 | 9 | -1.25 | 40 | -50.00 | |
|  Luster, Shakira | | | 1427 | USA | 0.00 | 1 | -0.81 | 40 | -32.40 | | | Szeto, Sophie | | | 1274 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Low, Beatrice | | | 1456 | USA | 1.00 | 1 | 0.22 | 40 | 8.80 | | | De Dios Suarez, Mayra Valentina | | | 1537 | MEX | 0.50 | 1 | -0.18 | 40 | -7.20 | | | Hernandez, Ortega Carolina | | wc | 1563 | MEX | 0.00 | 1 | -0.65 | 40 | -26.00 | | | Tsyganova, Margarita | | | 1412 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Petersen Gonzalez, Paula | | | 1569 | MEX | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Liu, Kelsey | | | 1628 | USA | 0.50 | 1 | -0.06 | 40 | -2.40 | | | Eswaran, Aksithi | | wc | 1755 | USA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | * 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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