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Individual Calculations October 2021 |
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| Haskin, Zachary J Total change: -26.80 | |   |
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| 87th Annual Southwest Open - Open | Irving, Texas | USA | 2021-09-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1741 | 1907 | 2.00 | 4 | -0.75 | 20 | -15.00 | |
|  Brodsky, David | m | | 2307 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Kushalnagar, Nirupam | | | 1543 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Welsh, Vinh | | | 1507 * | USA | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Melillo, Lucius | | | 1605 | USA | 0.50 | 1 | -0.35 | 20 | -7.00 | | | * 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 |
| 1878 | 1907 | 2.00 | 5 | -0.59 | 20 | -11.80 | |
| | Wu, Sibo | | | 2122 | CHN | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Bharath Kumar, Sruthi | | | 1507 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Woodward, Andy A | f | | 2307 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Gupta, Sara Sachin | | | 1507 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Taylor Jr, Stewart | | | 1947 | USA | 0.00 | 1 | -0.44 | 20 | -8.80 | | | * 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) | | |
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