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Individual Calculations September 2018 |
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| Hosseini, Mohammad Ebrahim Total change: 13.60 | |   |
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| Iran Boys Student Middle school Chess Championship 1397 | Zanjan | IRI | 2018-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1755 | 1663 | 1.50 | 3 | 0.34 | 40 | 13.60 | |
|  Mohammadi, Pouya | c | | 1966 | IRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Kheyri, Aydin | | | 1366 | IRI | 1.00 | 1 | 0.15 | 40 | 6.00 | |  Nikzad, Nami | | | 1933 | IRI | 0.50 | 1 | 0.33 | 40 | 13.20 | |
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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