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Individual Calculations August 2023 |
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| Abdolzadeh, Baktash Total change: -15.20 | |   |
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| 6th Iranian Amateures Chess Championship 2023 (Under 1700) | Zanjan | IRI | 2023-06-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1360 | 1368 | 4.00 | 8 | -0.05 | 40 | -2.00 | |
|  Ganjeh, Yousef | | | 1577 | IRI | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Noorani, Fatima | | | 1090 | IRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Abdollahisaber, Reza | | | 1612 | IRI | 0.50 | 1 | 0.30 | 40 | 12.00 | | | Jarideh, Mohammad Sam | | | 1080 | IRI | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Taheri, Parsa | | | 1618 | IRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Naderiyan, Amir Hosein | | | 1565 | IRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Etefagh, Mohammad Masih | | | 1154 | IRI | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Selahi, Kian | | | 1185 | IRI | 0.50 | 1 | -0.24 | 40 | -9.60 | |
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) | | | | Tehran U-10 Boys Championship 1402 | Tehran | IRI | 2023-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1205 | 1482 | 4.50 | 6 | -0.33 | 40 | -13.20 | |
| | Zarneshan, Arash | | | 1128 | IRI | 0.50 | 1 | -0.39 | 40 | -15.60 | | | Karimlar, Keysan | | | 1082 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Shorakayi, Ali | | | 1286 | IRI | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Rahimi, Kian | | | 1076 | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Ahanpie, Mahbod | | | 1159 | IRI | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Kolivand, Mohammad Ali | | | 1497 | IRI | 0.50 | 1 | 0.02 | 40 | 0.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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