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Individual Calculations July 2021 |
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| Premkumar, Hiren Total change: 0.60 | |   |
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| 76th Annual Texas State and Amateur Championship | Fort Worth, Texas | USA | 2021-05-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1726 | 1791 | 1.50 | 5 | -1.44 | 20 | -28.80 | |
|  Mao, Andrew Sun-Rong | | | 1671 | USA | 0.00 | 1 | -0.66 | 20 | -13.20 | |  Redfield, Grant | | | 1923 | USA | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Chikkodi, Nitin | | | 1675 | USA | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Allen, Jonathan F | | | 1676 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Liu, Eric Chang | | | 1686 | USA | 0.00 | 1 | -0.64 | 20 | -12.80 | |
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) | | | | 2021 National Open - Under 2300 | Las Vegas, Nevada | USA | 2021-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1984 | 1791 | 3.00 | 6 | 1.47 | 20 | 29.40 | |
| | Li, Beilin | | | 2028 | USA | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Wang, Andrew | | | 1967 | USA | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Langseth, Rhett | | | 1938 | USA | 1.00 | 1 | 0.70 | 20 | 14.00 | | | Hon, Eric | | | 1930 | USA | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Fernandez, Nelson Wilfredo | | | 1927 | HON | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Heredia, Carla | | wg | 2112 | ECU | 0.00 | 1 | -0.13 | 20 | -2.60 | |
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) | | |
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