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Individual Calculations September 2021 |
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| Qin, Vincent Total change: -8.40 | |   |
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| 26th Annual Pacific Coast Open - Under 2100 | Van Nuys, California | USA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1588 | 1610 | 1.50 | 3 | -0.07 | 40 | -2.80 | |
|  Jiang, Lucas | | | 1711 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Klokow, John L | | | 1636 | CAN | 0.50 | 1 | 0.04 | 40 | 1.60 | |  Trifan, Octavian Alexandru | | | 1417 | ROU | 1.00 | 1 | 0.25 | 40 | 10.00 | |
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) | | | | 11th Annual Central California Open - Open | Fresno, California | USA | 2021-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1728 | 1633 | 1.00 | 3 | -0.14 | 40 | -5.60 | |
| | Kaleeswaran, Jaisuraj | | | 1851 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Deng, Henry | | | 1777 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Arutla, Aditya | | | 1555 | USA | 1.00 | 1 | 0.39 | 40 | 15.60 | |
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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