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Individual Calculations November 2019 |
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| Derakhshan, Alireza Total change: 31.60 | |   |
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| Tehran U 18 League 2019 Round 1-3 | Tehran | IRI | 2019-10-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1392 | 1599 | 2.50 | 3 | 0.29 | 40 | 11.60 | |
|  Jafari, Artin | | | 1220 | IRI | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Hosseinzadeh, Amir Mahdi | | | 1341 | IRI | 1.00 | 1 | 0.18 | 40 | 7.20 | |  Khosronejad, Abtin | | | 1614 | IRI | 0.50 | 1 | 0.02 | 40 | 0.80 | |
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) | | | | North East staff on the occasion of Physical Education Week | Tehran | IRI | 2019-10-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1595 | 1599 | 3.00 | 5 | 0.50 | 40 | 20.00 | |
| | Derakhshan, Amirhossein | | | 1712 | IRI | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Bashiri, Aryan | | | 1999 * | IRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Fakhari Fini, Sana | | | 1199 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Derakhshan, Amirhossein | | | 1712 | IRI | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Kargarzadeh, Mahour | | | 1354 | IRI | 0.00 | 1 | -0.80 | 40 | -32.00 | | | * 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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