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Individual Calculations January 2020 |
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| Nikeghbal, Erfan Total change: -17.60 | |   |
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| Tehran U 18 League 2019 Round 4-5 | Tehran | IRI | 2019-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1164 | 1140 | 1.00 | 2 | 0.07 | 40 | 2.80 | |
|  Kian Sirat , Yasin | | | 1161 | IRI | 1.00 | 1 | 0.53 | 40 | 21.20 | |  Mahdizadeh, Sadra | | | 1166 | IRI | 0.00 | 1 | -0.46 | 40 | -18.40 | |
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) | | | | Tehran U 18 League 2019 Round 6-9 | Tehran | IRI | 2019-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1135 | 1140 | 0.00 | 1 | -0.51 | 40 | -20.40 | |
| | Niaei, Keyhan | | | 1135 | IRI | 0.00 | 1 | -0.51 | 40 | -20.40 | |
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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