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Individual Calculations September 2018 |
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| Riahi, Arvin Total change: -30.40 | |   |
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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 |
| 1641 | 1696 | 2.00 | 5 | -0.76 | 40 | -30.40 | |
|  Golzari, Mahdi | | | 1296 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Khosh Ravesh, Alireza | | | 1685 | IRI | 0.00 | 1 | -0.52 | 40 | -20.80 | | | Rahmatpisheh, Amir Hossein | | | 1626 | IRI | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Ghanbaralifarzad, Mohammad Hosei | | | 1760 | IRI | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Khosravanian, Hosein | | | 1837 | IRI | 0.50 | 1 | 0.19 | 40 | 7.60 | | | * 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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