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Individual Calculations January 2020 |
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| Riahi, Arvin Total change: 48.80 | |   |
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| 12th Chess League of Golestan province-1398 Round 3-8 | Golestan | IRI | 2019-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1817 | 1686 | 1.00 | 3 | 0.03 | 40 | 1.20 | |
|  Khalili, Asef | | | 1845 | IRI | 0.00 | 1 | -0.29 | 40 | -11.60 | |  Dorpa, Mohammad Mahdi | | | 1785 | IRI | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Ghasempoor, Abdollah | | | 1822 | IRI | 0.50 | 1 | 0.18 | 40 | 7.20 | |
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) | | | | Lahijan Open Under 1700 | Lahijan | IRI | 2019-12-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1495 | 1686 | 7.00 | 8 | 1.19 | 40 | 47.60 | |
| | Pendashteh, Amirhosein | | | 1286 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Imani, Adrina | | | 1315 | IRI | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Fallah Alipour, Arash | | | 1460 | IRI | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Shakari, Atoosa | | | 1509 | IRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Fallah Alipour, Yousef | | | 1587 | IRI | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Movagharhasani, Farhan | | | 1676 | IRI | 1.00 | 1 | 0.49 | 40 | 19.60 | | | Hosseinzadeh, Amir Ali | | | 1635 | IRI | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Kafshgar Gohari, Reza | | | 1494 | 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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