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Individual Calculations September 2023 |
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| Iranian Prabhu Kumar, Ashwin Total change: -61.56 | |   |
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| 2023 Joe Yun Memorial - U2200 | BRECKSVILLE, OH | USA | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1716 | 1760 | 3.00 | 5 | 0.23 | 38 | 8.74 | |
|  Al-Shami, Ben | | | 1681 | USA | 0.00 | 1 | -0.61 | 38 | -23.18 | |  Demetruk, David E | | | 1728 | USA | 1.00 | 1 | 0.46 | 38 | 17.48 | | | Pierson, Kenneth L | | | 1500 | USA | 1.00 | 1 | 0.18 | 38 | 6.84 | | | Lin, Benjamin Gu | | | 1792 | USA | 0.50 | 1 | 0.04 | 38 | 1.52 | | | Casden, Alan | | | 1881 | USA | 0.50 | 1 | 0.16 | 38 | 6.08 | |
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 10 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1485 | 1760 | 4.00 | 8 | -2.40 | 38 | -91.20 | |
| | Silvestre, Lucas | | | 1360 * | USA | 0.50 | 1 | -0.42 | 38 | -15.96 | | | Cortes Medina, Fernando | | | 1645 | MEX | 1.00 | 1 | 0.34 | 38 | 12.92 | | | Xu, Owen | | | 1623 | USA | 0.50 | 1 | -0.18 | 38 | -6.84 | | | Campos Gorgonio, Eduardo Arturo | | | 1311 | MEX | 0.50 | 1 | -0.44 | 38 | -16.72 | | | Jasinski, Alexander | | | 1740 | USA | 0.00 | 1 | -0.53 | 38 | -20.14 | | | Marquez Rosas, Vicente | | | 1307 | CHI | 1.00 | 1 | 0.06 | 38 | 2.28 | | | Fang, Zelin | | | 1431 | USA | 0.50 | 1 | -0.38 | 38 | -14.44 | | | Yang, Lucas | | | 1460 | USA | 0.00 | 1 | -0.85 | 38 | -32.30 | | | * 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) | | | | 18th annual Indianapolis Open - Major | Indianapolis, IN | USA | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1760 | 2.50 | 5 | 0.55 | 38 | 20.90 | |
| | Rivedal, Andrew | | | 1829 | USA | 1.00 | 1 | 0.60 | 38 | 22.80 | | | Abraham, John Zacharia | | | 1813 | USA | 0.50 | 1 | 0.07 | 38 | 2.66 | | | Sammons, Evan | | | 1931 | USA | 0.50 | 1 | 0.23 | 38 | 8.74 | | | Marciano, Orry Matthew | | | 1836 | USA | 0.00 | 1 | -0.40 | 38 | -15.20 | | | Starkman, Eric | | | 1794 | USA | 0.50 | 1 | 0.05 | 38 | 1.90 | |
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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