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Individual Calculations January 2020 |
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| Oh, James Y Total change: 5.20 | |   |
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| 7th Annual Magnus High School and Junior High Chess League - December 2019 | New York, New York | USA | 2019-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1750 | 1676 | 1.50 | 2 | 0.68 | 40 | 27.20 | |
|  Kozower, Ethan | | | 1604 | USA | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Levine, Jack | | | 1895 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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) | | | | 38th Annual Empire City Open | New York, New York | USA | 2019-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2000 | 1676 | 0.00 | 4 | -0.55 | 40 | -22.00 | |
| | Idnani, Roshan Ritesh | c | | 2076 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Gu, Ethan | | | 1880 | USA | 0.00 | 1 | -0.24 | 40 | -9.60 | |  Yoo, Eugene | | | 2000 | USA | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Guevara, Robert N | | | 2042 | USA | 0.00 | 1 | -0.10 | 40 | -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) | | |
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