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Individual Calculations September 2023 |
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| Kaplan, Avi Harrison Total change: 22.40 | |   |
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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 |
| 1929 | 2117 | 4.50 | 6 | 0.45 | 40 | 18.00 | |
|  Rajeshkumar, Rahul | | | 1545 | USA | 1.00 | 1 | 0.02 | 40 | 0.80 | |  Rana, Oliver | | | 1717 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Feng, Jay | | | 1775 | USA | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Chiu, Isaac | | | 2242 | USA | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Lu, Maximillian | m | | 2394 | USA | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Heller, Jack | | | 1903 | USA | 0.50 | 1 | -0.27 | 40 | -10.80 | | | * 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) | | | | XXXIII Pan-American Youth Chess Festival - Under 18 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2105 | 2090 | 4.00 | 8 | 0.11 | 40 | 4.40 | |
| | Guo, Andrew | f | | 2330 | USA | 0.50 | 1 | 0.30 | 40 | 12.00 | | | Tanaka, Taira Tyler | f | | 2297 | CAN | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Laddha, Shubh Jayesh | f | | 2397 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Zhang, Samuel | | | 1882 | USA | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Lyon Martinez, Juan Pablo | | | 1842 | VEN | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Casares Contreras, Jose Gabriel | | | 1975 | VEN | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Rajanish, Adhvaith | | | 2135 | USA | 0.00 | 1 | -0.44 | 40 | -17.60 | | | Heller, Jack | | | 1984 | USA | 1.00 | 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) | | |
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