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Individual Calculations September 2018 |
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| Toy, Amirabbas Total change: 17.60 | |   |
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| Iran Boys Student Middle school Chess Championship 1397 | Zanjan | IRI | 2018-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1503 | 1389 | 1.50 | 3 | 0.44 | 40 | 17.60 | |
|  Jamali, Pouria | | | 1531 | IRI | 1.00 | 1 | 0.69 | 40 | 27.60 | |  Elikaei, Mehrad | | | 1615 | IRI | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Shariati, Farham | | | 1363 | IRI | 0.00 | 1 | -0.54 | 40 | -21.60 | |
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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