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Individual Calculations September 2023 |
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| Manakova, Maria Total change: -28.40 | |   |
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| 2023 David King Memorial Challenger 1 | Arcadia, CA | USA | 2023-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 2137 | 3.00 | 4 | -0.10 | 20 | -2.00 | |
|  Wang, Andrew | | | 1789 | USA | 0.50 | 1 | -0.39 | 20 | -7.80 | |  Wang, Andrew | | | 1789 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Guo, Yanfeng | | | 2018 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Guo, Yanfeng | | | 2018 | USA | 0.50 | 1 | -0.16 | 20 | -3.20 | |
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 David King Memorial Challenger 5 | Arcadia, CA | USA | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1985 | 2137 | 4.00 | 6 | -0.18 | 20 | -3.60 | |
| | Zhou, Vanessa G | | | 1910 | USA | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Zhou, Vanessa G | | | 1910 | USA | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Guo, Yanfeng | | | 2111 | USA | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Guo, Yanfeng | | | 2111 | USA | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Hsiao, Ethan | | | 1935 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Hsiao, Ethan | | | 1935 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | |
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) | | | | 2023 David King Memorial Challenger 6 | Arcadia, CA | USA | 2023-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1839 | 2137 | 1.50 | 4 | -1.82 | 20 | -36.40 | |
| | Shi, Roger V | | | 1950 | USA | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Shi, Roger V | | | 1950 | USA | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Tang, Benjamin Benchen | | | 1727 | USA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Tang, Benjamin Benchen | | | 1727 | USA | 0.50 | 1 | -0.42 | 20 | -8.40 | |
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) | | | | 2023 David King Memorial Challenger 8 | Arcadia, CA | USA | 2023-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1844 | 2137 | 3.50 | 4 | 0.12 | 20 | 2.40 | |
| | Sun, Kevin | | | 1809 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Sun, Kevin | | | 1809 | USA | 1.00 | 1 | 0.13 | 20 | 2.60 | | | She, Byron | | | 1878 | USA | 1.00 | 1 | 0.18 | 20 | 3.60 | | | She, Byron | | | 1878 | USA | 1.00 | 1 | 0.18 | 20 | 3.60 | |
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) | | | | 2023 David King Memorial Challenger 10 | Arcadia, CA | USA | 2023-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1844 | 2137 | 5.00 | 6 | -0.04 | 20 | -0.80 | |
| | Hsiao, Ethan | | | 1935 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Hsiao, Ethan | | | 1935 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Sun, Kevin | | | 1809 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Sun, Kevin | | | 1809 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Wang, Andrew | | | 1789 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Wang, Andrew | | | 1789 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | |
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 David King Memorial Challenger 12 | Arcadia, CA | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 2137 | 4.00 | 4 | 0.60 | 20 | 12.00 | |
| | Yang, Andersen | | | 1838 | USA | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Yang, Andersen | | | 1838 | USA | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Yang, Adelynne | | | 1843 | USA | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Yang, Adelynne | | | 1843 | USA | 1.00 | 1 | 0.15 | 20 | 3.00 | |
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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