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Individual Calculations September 2023 |
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| Rana, Oliver Total change: -10.00 | |   |
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| 2023 U.S. Junior Open Championship | Elmhurst, IL | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1698 | 1505 | 1.50 | 3 | 0.46 | 40 | 18.40 | |
|  Kaplan, Avi Harrison | | | 2117 | USA | 0.00 | 1 | -0.02 | 40 | -0.80 | |  Khanbutaev, Artemii | | | 1105 * | RUS | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Reddy, Shreyas C | | | 1872 | USA | 0.50 | 1 | 0.40 | 40 | 16.00 | | | * 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) | | | | 2023 Bill Wright Saint Louis Open | Saint Louis, Missouri | USA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1928 | 1505 | 1.50 | 4 | 1.14 | 40 | 45.60 | |
| | Ponukumati, Aditya | | | 2008 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Zhu, Rex | | | 1729 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Peterson, John Lee | | | 1958 | USA | 1.00 | 1 | 0.94 | 40 | 37.60 | | | Gadson, Isaiah | | | 2015 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 12 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1483 | 1599 | 1.50 | 5 | -1.98 | 40 | -79.20 | |
| | Liu, Aiden Q | | | 2339 | USA | 0.00 | 1 | 0.00 | 40 | 0.00 | | | Atiencia Merino, Jose Luis | | | 1225 | ECU | 0.00 | 1 | -0.90 | 40 | -36.00 | | | Mintz, Nathan | | | 1243 | USA | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Anandheri Kandadai, Srihari | | | 1323 | USA | 0.00 | 1 | -0.83 | 40 | -33.20 | | | Ganesan, Vikash | | | 1284 | USA | 0.50 | 1 | -0.36 | 40 | -14.40 | |
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) | | | | 68th Iowa Open Championship | Des Moines, Iowa | USA | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1884 | 1599 | 1.00 | 4 | 0.13 | 40 | 5.20 | |
| | Kosokin, Valeriy | | | 2186 | UZB | 0.50 | 1 | 0.48 | 40 | 19.20 | | | Jorenby, Josiah | | | 1917 | USA | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Koppinger, Matthew | | | 1568 | USA | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Drippe, John M | | | 1864 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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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