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Individual Calculations October 2021 |
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| Qin, Vincent Total change: 99.20 | |   |
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| BayAreaChess 45th People's Tournament - X | Santa Clara, California | USA | 2021-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1609 | 1625 | 3.50 | 6 | 0.36 | 40 | 14.40 | |
|  Pullela, Sricharan | | | 1723 | USA | 0.50 | 1 | 0.13 | 40 | 5.20 | |  Achuthan, Aryan | | | 1527 | USA | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Bansal, Advay | | | 1675 | USA | 0.50 | 1 | 0.07 | 40 | 2.80 | | | Zhou, Ruoyu | | | 1510 | USA | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Meiyappan, Annapoorni | | wf | 1626 | USA | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Yang, Vincent | | | 1592 | USA | 0.50 | 1 | -0.05 | 40 | -2.00 | |
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) | | | | 2021 Howard Donnelly Memorial Championship - 2000 Plus | San Francisco, California | USA | 2021-09-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1714 | 1625 | 2.50 | 4 | 0.86 | 40 | 34.40 | |
| | Coyne, Theodore | | | 2016 | USA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Liu, Patrick | | | 1567 | USA | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Bansal, Advay | | | 1675 | USA | 0.50 | 1 | 0.07 | 40 | 2.80 | | | Qureshi, Sadia | | | 1598 | USA | 1.00 | 1 | 0.46 | 40 | 18.40 | |
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) | | | | 2021 SJCC Fall Championship | Milpitas, California | USA | 2021-09-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1756 | 1625 | 3.00 | 5 | 1.26 | 40 | 50.40 | |
| | Fong, Kevin | | | 1718 | USA | 1.00 | 1 | 0.63 | 40 | 25.20 | | | Langreck, John | | | 2025 * | USA | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Tia, Rudy | | | 1746 | PNG | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Liu, Patrick | | | 1567 | USA | 0.50 | 1 | -0.08 | 40 | -3.20 | | | Pullela, Sricharan | | | 1723 | USA | 0.50 | 1 | 0.13 | 40 | 5.20 | | | * 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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