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Individual Calculations August 2023 |
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| Chen, Alan Zishun Total change: 107.60 | |   |
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| 2nd annual World Open Amateur | Philadelphia, PA | USA | 2023-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1689 | 1575 | 2.00 | 5 | 0.13 | 40 | 5.20 | |
|  Luo, Wesley | | | 1490 | USA | 1.00 | 1 | 0.38 | 40 | 15.20 | |  Mucerino, Joseph J | | | 1866 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Campbell, Joshua Arden | | | 1951 | USA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Reddy, Sushruta | | | 1484 | IND | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Chen, Yiming | | | 1656 | USA | 0.50 | 1 | 0.11 | 40 | 4.40 | |
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) | | | | 51st annual World Open - U2200 | Philadelphia, PA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1784 | 1575 | 3.00 | 7 | 1.32 | 40 | 52.80 | |
| | Hyatt, Jessica | | | 1748 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Wang, Ryan | | | 1791 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Campbell, Joshua A | | | 1951 | USA | 1.00 | 1 | 0.91 | 40 | 36.40 | | | Roberts, Aston | | | 1717 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Coy, Matthew Mille | | | 1766 | USA | 1.00 | 1 | 0.75 | 40 | 30.00 | | | Moshkevich, Elizabeth | | | 1671 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Kellinsky-Gonzalez, Kevin | | | 1843 | USA | 1.00 | 1 | 0.83 | 40 | 33.20 | |
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) | | | | 2023 Charlotte Summer Open - Championship | Charlotte, NC | USA | 2023-07-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2048 | 1589 | 1.50 | 4 | 1.24 | 40 | 49.60 | |
| | Senft, Sean | | | 2160 | USA | 0.50 | 1 | 0.48 | 40 | 19.20 | | | Ai, Evan | | | 2159 | USA | 0.00 | 1 | -0.02 | 40 | -0.80 | | | Sattaru, Sritej Sai | | | 1936 | USA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Wu, Andrew | | | 1935 | USA | 1.00 | 1 | 0.89 | 40 | 35.60 | |
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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