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Individual Calculations January 2020 |
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| Idnani, Roshan Ritesh Total change: 12.40 | |   |
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| 50th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2019-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1965 | 2088 | 2.00 | 4 | -0.54 | 40 | -21.60 | |
|  Li, Thomas | | | 1688 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | |  Martin, Zachary D | | | 2073 | USA | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Zhu, Evelyn | | wm | 2086 | USA | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Ngo, Bach | | | 2012 | USA | 0.50 | 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) | | | | 38th Annual Empire City Open | New York, New York | USA | 2019-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 2088 | 2.50 | 4 | 0.85 | 40 | 34.00 | |
| | Oh, James Y | | | 1688 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Zhou, Liran | f | | 2317 | USA | 1.00 | 1 | 0.79 | 40 | 31.60 | | | Rohde, Michael A | g | | 2349 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Nakada, Akira Wood | c | | 2208 | USA | 0.50 | 1 | 0.16 | 40 | 6.40 | | | * 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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