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Individual Calculations September 2021 |
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| Pang, Brian Total change: -39.20 | |   |
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| 2021 North American Youth Chess Championships - Open Under 12 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1685 | 1888 | 5.00 | 7 | -0.01 | 40 | -0.40 | |
|  Chinni, Rishabh | | | 1488 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Vemparala, Nikash | | | 1649 | USA | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Liu, Eric Chang | | | 2014 | USA | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Hardaway, Brewington | c | | 2026 | USA | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Luo, Will | | | 1488 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Guo, Edward | | | 1640 | USA | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Yan, Nathan | | | 1488 * | USA | 1.00 | 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) | | | | 53rd Annual Atlantic Open - Major | Reston, Virginia | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1818 | 1888 | 2.00 | 5 | -0.97 | 40 | -38.80 | |
| | Raja, Harshit | m | | 2288 * | IND | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Nair, Siddhant | | | 1832 | USA | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Peterson, Scott | | | 1590 | USA | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Feng, Andrew T | | | 1540 | USA | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Su, Kevin | | | 1841 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | * 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) | | |
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