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Individual Calculations September 2021 |
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| Zhang, Roger Total change: -13.20 | |   |
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| 2021 North American Youth Chess Championships - Open Under 14 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1724 | 1898 | 6.00 | 9 | -0.33 | 40 | -13.20 | |
|  Plotnick, Jacob | | | 1498 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Reiss, Aiden | | | 1655 | USA | 0.00 | 1 | -0.80 | 40 | -32.00 | | | Xiong, Lang Leo | | | 1498 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | He, Henry | | | 1680 | USA | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Feng, Eric | | | 1755 | USA | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Levine, Joseph | | | 2123 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Shivakumar, Shawnak | | | 1828 | USA | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Su, Kevin | | | 1841 | USA | 0.50 | 1 | -0.08 | 40 | -3.20 | | | Oberai, Vikram | | | 1638 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | | | * 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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