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Individual Calculations August 2021 |
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| Liu, Eric Chang Total change: 104.69 | |   |
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| 14th Annual Philadelphia International - Premier | Philadelphia, Pennsylvania | USA | 2021-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 1688 | 2.50 | 8 | 1.41 | 29 | 40.89 | |
|  Katz, Alexander Ross | m | | 2088 * | USA | 0.00 | 1 | -0.08 | 29 | -2.32 | |  Andersen, Gunnar James | | | 2088 * | USA | 0.00 | 1 | -0.08 | 29 | -2.32 | | | Kondakov, Adrian | c | | 1986 | USA | 0.50 | 1 | 0.35 | 29 | 10.15 | | | De La Colina, Nicolas | | | 1969 | USA | 0.00 | 1 | -0.16 | 29 | -4.64 | | | Xu, Arthur | c | | 2088 * | USA | 0.50 | 1 | 0.42 | 29 | 12.18 | | | Lu, Jason | | | 2048 | USA | 0.00 | 1 | -0.10 | 29 | -2.90 | | | Yagiz, Bora | | | 1877 | TUR | 1.00 | 1 | 0.75 | 29 | 21.75 | | | Vittal, Sanjana | | wf | 1938 | USA | 0.50 | 1 | 0.31 | 29 | 8.99 | | | * 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) | | | | 49th Annual World Open - Open | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2132 | 1909 | 3.50 | 8 | 1.73 | 29 | 50.17 | |
| | Maiti, Milind | | | 2245 | USA | 0.00 | 1 | -0.12 | 29 | -3.48 | | | Proleiko, Julian | | | 2111 | USA | 0.00 | 1 | -0.24 | 29 | -6.96 | | | Pardiwalla, Vispy | | | 2049 | IND | 1.00 | 1 | 0.69 | 29 | 20.01 | | | Yanayt, Eugene | f | | 2146 | USA | 1.00 | 1 | 0.80 | 29 | 23.20 | | | Hakobyan, Eduard | | | 2190 | USA | 0.00 | 1 | -0.16 | 29 | -4.64 | | | Cooke, Eric | | | 2065 | USA | 1.00 | 1 | 0.71 | 29 | 20.59 | | | O`brien, Matthew J | | | 2156 | USA | 0.00 | 1 | -0.19 | 29 | -5.51 | | | Jian, Alex | | | 2091 | USA | 0.50 | 1 | 0.24 | 29 | 6.96 | |
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) | | | | 3rd Charlotte Masters | Charlotte, North Carolina | USA | 2021-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1955 | 1909 | 2.00 | 4 | 0.25 | 29 | 7.25 | |
| | Amburgy, Ryan | | | 2012 | USA | 0.50 | 1 | 0.14 | 29 | 4.06 | | | Chen, Alex | c | | 2045 | USA | 0.50 | 1 | 0.18 | 29 | 5.22 | | | Tay, Brian | | | 1758 | USA | 1.00 | 1 | 0.30 | 29 | 8.70 | | | Mishra, Prateek | c | | 2004 | USA | 0.00 | 1 | -0.37 | 29 | -10.73 | |
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 US Class Championships - Master | Houston, Texas | USA | 2021-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1865 | 1909 | 2.50 | 4 | 0.22 | 29 | 6.38 | |
| | Cryan, Keith | | | 1789 | USA | 1.00 | 1 | 0.34 | 29 | 9.86 | | | Nandhakumar, Vaseegaran | | | 1567 | USA | 0.50 | 1 | -0.38 | 29 | -11.02 | | | Vivekananthan, Anish | f | | 2309 * | USA | 0.00 | 1 | -0.08 | 29 | -2.32 | | | Gardezi, Arsal | | | 1795 | USA | 1.00 | 1 | 0.34 | 29 | 9.86 | | | * 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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