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Individual Calculations October 2021 |
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| Dai, George J Total change: 23.60 | |   |
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| 87th Annual Southwest Open - Open | Irving, Texas | USA | 2021-09-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1821 | 1691 | 2.00 | 5 | 0.20 | 40 | 8.00 | |
|  Deviprasath, Sharvesh | | | 2091 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Elliott, Alexander | | | 1782 | USA | 1.00 | 1 | 0.62 | 40 | 24.80 | |  Zhang, Andrew H | | | 1639 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Montgomery, John Lewis | | | 1990 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Melillo, Lucius | | | 1605 | USA | 0.50 | 1 | -0.12 | 40 | -4.80 | | | * 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) | | | | 2021 Texas Fall Open | Westlake, Texas | USA | 2021-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1673 | 1691 | 3.00 | 5 | 0.39 | 40 | 15.60 | |
| | Ortiz, Victor F | | | 1306 | NCA | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Mishra, Prateek | c | | 2028 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Trey, Justin | | | 1332 | USA | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Amburgy, Ryan | | | 2065 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Yang, Daniel | | | 1633 | USA | 1.00 | 1 | 0.42 | 40 | 16.80 | |
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) | | |
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