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Individual Calculations September 2017 |
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| Ghaffarifar, Emad Total change: 38.80 | |   |
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| Alborz Boys Under 10 Championship 1396 | Karaj | IRI | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1351 | 1150 | 2.00 | 4 | 0.97 | 40 | 38.80 | |
|  Kermani, Barad | | | 1354 | IRI | 1.00 | 1 | 0.76 | 40 | 30.40 | |  Ghayourifar, Amir | | | 1283 | IRI | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Majidi, Seyed Mohammad Parsa | | | 1533 | IRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Shadfar, Shayan | | | 1235 | IRI | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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) | | |
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