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Individual Calculations October 2021 |
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| Huddleston, James Douglas Total change: -63.20 | |   |
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| 87th Annual Southwest Open - Open | Irving, Texas | USA | 2021-09-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1678 | 1600 | 1.50 | 6 | -1.00 | 40 | -40.00 | |
|  Preotu, Razvan | g | | 2000 * | CAN | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Nair, Ajitesh | | | 1605 | USA | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Zhang, Andrew H | | | 1639 | USA | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Tsuei, Kai | | | 1645 | USA | 0.00 | 1 | -0.44 | 40 | -17.60 | | | Wang, Kalia Yuke | | | 1617 | USA | 0.00 | 1 | -0.48 | 40 | -19.20 | | | Meng, Joshua | | | 1560 | USA | 0.00 | 1 | -0.56 | 40 | -22.40 | | | * 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 Las Vegas Open - Under 2200 | Las Vegas, Nevada | USA | 2021-09-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1596 | 1600 | 2.50 | 6 | -0.58 | 40 | -23.20 | |
| | Wiley, Elizabeth | | | 1487 | USA | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Nanugonda, Vishva | | | 1354 | USA | 0.50 | 1 | -0.31 | 40 | -12.40 | | | Tyau, Christopher | | | 1577 | USA | 1.00 | 1 | 0.47 | 40 | 18.80 | | | Merwin, Steven E | | | 1937 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Vasquez, Marcus | | | 1569 | USA | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Guo, Ethan | | | 1653 | USA | 0.00 | 1 | -0.43 | 40 | -17.20 | |
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) | | |
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