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Individual Calculations August 2021 |
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| Jacobson, Brandon Total change: -22.90 | |   |
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| 14th Annual Philadelphia International - Premier | Philadelphia, Pennsylvania | USA | 2021-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2207 | 2491 | 3.00 | 6 | -1.86 | 10 | -18.60 | |
|  Rama, Tejas | | | 2131 | USA | 0.50 | 1 | -0.40 | 10 | -4.00 | |  Wu, Rochelle | | wm | 2144 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Maiti, Milind | | | 2091 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Niemann, Hans | g | | 2567 | USA | 0.00 | 1 | -0.40 | 10 | -4.00 | | | Chiu, Isaac | | | 2190 | USA | 0.00 | 1 | -0.85 | 10 | -8.50 | | | Li, Hanxiang | | | 2118 | CHN | 0.50 | 1 | -0.40 | 10 | -4.00 | | | * 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) | | | | 49th Annual World Open - Open | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2314 | 2504 | 4.50 | 8 | -1.28 | 10 | -12.80 | |
| | Yan, Ruiyang | | wc | 2111 | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Poliannikov, Danila | | | 2227 | USA | 0.00 | 1 | -0.83 | 10 | -8.30 | | | Kumar, Naman | | | 2141 | USA | 1.00 | 1 | 0.10 | 10 | 1.00 | | | Maiti, Milind | | | 2245 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Nyzhnyk, Illia | g | | 2683 | UKR | 0.00 | 1 | -0.27 | 10 | -2.70 | | | Bartell, Thomas | m | | 2360 | USA | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Kumar, Nikhil | f | | 2302 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Escalante, Brian | m | | 2440 | PER | 0.00 | 1 | -0.59 | 10 | -5.90 | |
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 US Junior Championship | St. Louis, Missouri | USA | 2021-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2491 | 2504 | 5.50 | 9 | 0.85 | 10 | 8.50 | |
| | Checa, Nicolas De T | g | | 2552 | USA | 0.00 | 1 | -0.43 | 10 | -4.30 | | | Hong, Andrew | m | | 2474 | USA | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Burke, John Michael | g | | 2538 | USA | 0.00 | 1 | -0.45 | 10 | -4.50 | | | Li, Ben | m | | 2376 | USA | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Wang, Justin | m | | 2467 | USA | 0.50 | 1 | -0.05 | 10 | -0.50 | | | Yoo, Christopher Woojin | m | | 2479 | USA | 1.00 | 1 | 0.47 | 10 | 4.70 | | | Balakrishnan, Praveen | m | | 2507 | USA | 1.00 | 1 | 0.50 | 10 | 5.00 | | | Brodsky, David | m | | 2455 | USA | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Niemann, Hans | g | | 2571 | USA | 0.50 | 1 | 0.09 | 10 | 0.90 | |
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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