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Individual Calculations September 2018 |
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| Ahmadi, Erfan Total change: 19.20 | |   |
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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 |
| 1570 | 1646 | 3.50 | 5 | 0.48 | 40 | 19.20 | |
|  Soltani, Mohammad | | | 1649 | IRI | 0.50 | 1 | 0.00 | 40 | 0.00 | | | Biriya, Mohammadamin | | | 1590 | IRI | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Baytamari, Amir Hossein | | | 1475 | IRI | 0.00 | 1 | -0.73 | 40 | -29.20 | |  Rashedi, Amin | | | 1648 | IRI | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Kalvandi, Mohammad Naeim | | | 1487 | IRI | 1.00 | 1 | 0.29 | 40 | 11.60 | |
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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