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Individual Calculations September 2021 |
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| Kaplan, Avi Harrison Total change: 63.20 | |   |
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| 2021 North American Youth Chess Championships - Open Under 16 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2067 | 1756 | 2.50 | 7 | 1.46 | 40 | 58.40 | |
|  Zhao, Ian | f | | 2156 * | CAN | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Rama, Tejas | | | 2156 * | USA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Wang, Ellen | | wm | 2088 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Johnson, Donald | | | 2063 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Karthik, Advaith | | | 1953 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Levine, Jack | | | 1940 | USA | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Wen, Teddie | | | 2113 | USA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | * 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) | | | | 16th Annual Indianapolis Open - Major | Indianapolis, Indiana | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1788 | 1756 | 1.50 | 3 | 0.12 | 40 | 4.80 | |
| | Xia, Ruoxiao | | | 1664 | USA | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Akintonde, Jimi | | | 1853 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Huang, Evan Y | | | 1847 | USA | 1.00 | 1 | 0.62 | 40 | 24.80 | |
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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