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Individual Calculations September 2021 |
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| Kaur, Aradh Total change: 42.80 | |   |
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| 51st Annual Continental Open - Under 2000 | Sturbridge, Massachusetts | USA | 2021-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1539 | 1436 | 2.00 | 3 | 0.88 | 40 | 35.20 | |
|  Hardin, John Michael | | | 1698 | USA | 1.00 | 1 | 0.82 | 40 | 32.80 | |  Oconnor, Eric | | | 1587 | USA | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Ji, Y Luke | | | 1332 | USA | 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) | | | | 2021 North American Youth Chess Championships - Girls Under 14 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1536 | 1436 | 2.50 | 6 | 0.19 | 40 | 7.60 | |
| | Gupta, Sara | | | 1576 | USA | 1.00 | 1 | 0.69 | 40 | 27.60 | | | Durbha, Antara | | | 1356 | USA | 0.50 | 1 | -0.11 | 40 | -4.40 | | | Chen, Rachel Ruoxu | | | 1502 | CAN | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Wang, Lilian | | | 1486 | USA | 1.00 | 1 | 0.57 | 40 | 22.80 | | | Wen, Kally | | wc | 1460 | USA | 0.00 | 1 | -0.47 | 40 | -18.80 | | | Tang, Zoey | | | 1836 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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