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Individual Calculations September 2018 |
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| Zarezadeh, Mohammad Mahdi Total change: 10.40 | |   |
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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 |
| 1324 | 1430 | 3.00 | 5 | -0.15 | 40 | -6.00 | |
|  Abdollahabadi, Amir Hosien | | | 1639 | IRI | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Ebrahimi, Sayed Karo | | | 1269 | IRI | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Vosooghy, Parsa | | | 1300 | IRI | 0.00 | 1 | -0.68 | 40 | -27.20 | | | Golzari, Mahdi | | | 1072 | IRI | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Vafadar, Mobin | | | 1338 | IRI | 1.00 | 1 | 0.37 | 40 | 14.80 | |
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) | | | | East Azerbaijan Chess Championship 1397 | Tabriz | IRI | 2018-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1432 | 1430 | 2.00 | 3 | 0.41 | 40 | 16.40 | |
| | Pour Agha Bala, Amirreza | | | 1830 * | IRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rava, Afshin | | | 1230 | IRI | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Mahdavinia, Erfan | | | 1237 | IRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | * 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) | | |
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