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Individual Calculations September 2021 |
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| Tay, Brian Total change: 88.80 | |   |
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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 |
| 1829 | 1800 | 3.50 | 7 | 0.33 | 40 | 13.20 | |
|  Ray, Ujan | | | 1400 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Oberai, Vikram | | | 1638 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Xu, Arthur | c | | 1984 | USA | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Levine, Joseph | | | 2123 | USA | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Jiang, Andrew | | | 1899 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Nandhakumar, Vaseegaran | | | 1786 | USA | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Wen, Tommy | | | 1971 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | * 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) | | | | 53rd Annual Atlantic Open - Major | Reston, Virginia | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2035 | 1800 | 3.00 | 5 | 1.89 | 40 | 75.60 | |
| | Quirke, Jeffrey L | | | 2118 | USA | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Sarkar, Justin Joseph | m | | 2200 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Malyshev, Roman P | | | 1988 | RUS | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Adewumi, Tanitoluwa | | | 1895 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Hua, Charles | | | 1975 | USA | 1.00 | 1 | 0.73 | 40 | 29.20 | | | * 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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