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Individual Calculations September 2018 |
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| Ghayourifar, Amir Total change: -12.40 | |   |
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| Alborz Aria Chess School Cup 1397 | Alborz | IRI | 2018-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1340 | 1530 | 3.50 | 6 | -0.70 | 40 | -28.00 | |
|  Dehghan, Parisan | | | 1130 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Ghaffarifar, Emad | | | 1304 | IRI | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Ghayourifar, Ali | | | 1556 | IRI | 0.50 | 1 | 0.04 | 40 | 1.60 | | | Mandkari, Mohammadtaha | | | 1130 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Rasouli Mehrjardi, Amirmohammad | | | 1767 | IRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Safdarian, Saman | | | 1154 | IRI | 0.00 | 1 | -0.91 | 40 | -36.40 | | | * 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) | | | | Iran Boys Student elementary school Chess Championship 1397 | Ramsar | IRI | 2018-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1516 | 1532 | 3.50 | 6 | 0.39 | 40 | 15.60 | |
| | Choopani, Ali | | | 1428 | IRI | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Dehghan, Mohammad Yasin | | | 1666 | IRI | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Hesami, M.hosein | | | 1481 | IRI | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Salehi Pour, Eilia | | | 1645 | IRI | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Biriya, Mohammadamin | | | 1590 | IRI | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Fathian, Mobin | | | 1286 | IRI | 1.00 | 1 | 0.19 | 40 | 7.60 | |
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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