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Individual Calculations September 2019 |
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| Darvishi, Matin Total change: 18.80 | |   |
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| Alborz Chess Championship 1398 (U10-Boys) | Alborz | IRI | 2019-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1157 | 1133 | 2.50 | 4 | 0.62 | 40 | 24.80 | |
|  Emami, Seyed Iman | | | 1043 | IRI | 1.00 | 1 | 0.38 | 40 | 15.20 | |  Alizadeh, Mehrad | | | 1252 | IRI | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Karevan, Benyamin | | | 1071 | IRI | 1.00 | 1 | 0.41 | 40 | 16.40 | | | Safdarian, Saman | | | 1260 | IRI | 0.50 | 1 | 0.17 | 40 | 6.80 | |
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) | | | | Alborz Chess Championship 1398 (U12-Boys) | Alborz | IRI | 2019-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1180 | 1133 | 1.00 | 4 | -0.77 | 40 | -30.80 | |
| | Ghodousi, Arian | | | 1380 | IRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Saeidi, Amir Hossein | | | 1188 | IRI | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Ghiyasvand, Navid | | | 1010 | IRI | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Memar Kermani, Barad | | | 1142 | IRI | 0.00 | 1 | -0.49 | 40 | -19.60 | |
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) | | | | Chess Tehran Championship 2019 - U10B | Tehran | IRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1385 | 1133 | 1.00 | 2 | 0.62 | 40 | 24.80 | |
| | Alizadeh, Amirhosein | | | 1332 | IRI | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Keshani, Kian | | | 1437 | IRI | 0.00 | 1 | -0.14 | 40 | -5.60 | |
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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