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Individual Calculations September 2018 |
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| Kourechi, Ali Total change: -18.00 | |   |
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| Tehran Under 10 Boys Championship 1397 | Tehran | IRI | 2018-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1315 | 1089 | 0.50 | 4 | -0.45 | 40 | -18.00 | |
|  Habibi, Radin | | | 1392 | IRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Miar, Arad | | | 1489 * | IRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Katouzian, Ali Reza | | | 1271 | IRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Rabbani, Abtin | | | 1107 | IRI | 0.50 | 1 | 0.03 | 40 | 1.20 | | | * 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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