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Individual Calculations September 2019 |
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| Safdarian, Saman Total change: 80.80 | |   |
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| Alborz Chess Championship 1398 (U10-Boys) | Alborz | IRI | 2019-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1154 | 1260 | 4.00 | 5 | 0.79 | 40 | 31.60 | |
|  Haji Abadi, Amirhossein | | | 1125 | IRI | 1.00 | 1 | 0.32 | 40 | 12.80 | |  Karevan, Benyamin | | | 1071 | IRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Beheshti, Ali | | | 1187 | IRI | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Alizadeh, Mehrad | | | 1252 | IRI | 0.50 | 1 | -0.01 | 40 | -0.40 | | | Darvishi, Matin | | | 1133 | 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 |
| 1244 | 1260 | 3.50 | 6 | 0.31 | 40 | 12.40 | |
| | Seyed Nouri, Amirali | | | 1093 | IRI | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Mohammadi, Amir Hossein | | | 1595 | IRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Mehrshad, Artin | | | 1212 | IRI | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Memar Kermani, Barad | | | 1142 | IRI | 0.00 | 1 | -0.66 | 40 | -26.40 | | | Sohrabi, Arvin | | | 1044 | IRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Ghodousi, Arian | | | 1380 | IRI | 1.00 | 1 | 0.66 | 40 | 26.40 | |
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 |
| 1172 | 1260 | 4.00 | 5 | 0.92 | 40 | 36.80 | |
| | Mahdizadeh, Sadra | | | 1056 | IRI | 0.00 | 1 | -0.76 | 40 | -30.40 | | | Kian Sirat , Yasin | | | 1226 | IRI | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Sheykhali, Erfan | | | 1071 | IRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Mandkari, Mohammadtaha | | | 1068 | IRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Keshani, Kian | | | 1437 | IRI | 1.00 | 1 | 0.73 | 40 | 29.20 | |
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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