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Individual Calculations September 2018 |
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| Karimpour Talebi, Arman Total change: 21.20 | |   |
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| Iran Boys Student elementary school Chess Championship 1397 | Ramsar | IRI | 2018-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1525 | 1410 | 2.00 | 4 | 0.53 | 40 | 21.20 | |
|  Soleimani Moghadam, Alireza | | | 1228 | IRI | 1.00 | 1 | 0.26 | 40 | 10.40 | |  Baytamari, Amir Hossein | | | 1475 | IRI | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Tavakoli, Amirmohammad | | | 1651 | IRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Pourramezan Chafjiri, Parsa | | | 1746 | IRI | 0.00 | 1 | -0.12 | 40 | -4.80 | |
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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