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Individual Calculations August 2023 |
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| Carey, Michael P Total change: 5.80 | |   |
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| 2nd annual World Open Amateur | Philadelphia, PA | USA | 2023-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1891 | 1860 | 3.50 | 5 | 1.10 | 20 | 22.00 | |
|  Li, Mason Jin | | | 1654 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | |  Canzhou, He | | | 1773 | CHN | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Willy, Stephen | c | | 2273 | USA | 1.00 | 1 | 0.93 | 20 | 18.60 | | | Su, Kenneth | | | 1855 | USA | 0.50 | 1 | -0.01 | 20 | -0.20 | | | Nair, Ajitesh | | | 1902 | USA | 0.00 | 1 | -0.44 | 20 | -8.80 | |
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) | | | | 13th annual World Open Senior Amateur | Philadelphia, PA | USA | 2023-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1694 | 1860 | 1.00 | 2 | -0.42 | 20 | -8.40 | |
| | Friske, Thomas | | | 1779 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Johnson, Jeffery W | | | 1608 | USA | 0.00 | 1 | -0.81 | 20 | -16.20 | |
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) | | | | 53rd annual Continental Open - U2100 | Marlborough, MA | USA | 2023-07-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1642 | 1866 | 5.00 | 7 | -0.39 | 20 | -7.80 | |
| | Xu, Jayden | | | 1607 | USA | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Christiansen, Natasha C | | wc | 1550 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Fang, Arabella | | | 1541 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Gillott, Miles William | | | 1626 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Yuan, David | | | 1651 | USA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Wang, Connor Junda | | | 1616 | USA | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Levin, Anthony | | | 1903 | USA | 0.50 | 1 | 0.05 | 20 | 1.00 | |
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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