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Individual Calculations January 2020 |
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| Martin, Zachary D Total change: -10.00 | |   |
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| 50th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2019-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2071 | 2073 | 2.00 | 5 | -0.50 | 20 | -10.00 | |
|  Minear, Peter | | | 2150 | USA | 0.50 | 1 | 0.11 | 20 | 2.20 | |  Idnani, Roshan Ritesh | c | | 2088 | USA | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Idnani, Taran Ritesh | c | | 1884 | USA | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Samadashvili, Martha | | wf | 2152 | USA | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Juac, Majur | | | 2083 | USA | 0.50 | 1 | 0.01 | 20 | 0.20 | |
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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