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Individual Calculations August 2023 |
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| Roshantab, Sadra Total change: 19.76 | |   |
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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 |
| 1343 | 1288 | 3.00 | 7 | -0.07 | 38 | -2.66 | |
|  Ghovati, Amirhosein | | | 1506 | IRI | 0.00 | 1 | -0.22 | 38 | -8.36 | |  Vaziri, Sadra | | | 1069 | IRI | 1.00 | 1 | 0.22 | 38 | 8.36 | | | Rabiei Parsaei, Mehrdad | | | 1552 | IRI | 0.00 | 1 | -0.18 | 38 | -6.84 | | | Zeinali, Alireza | | | 1564 | IRI | 0.00 | 1 | -0.17 | 38 | -6.46 | | | Majidi, Ronia | | | 1080 | IRI | 1.00 | 1 | 0.23 | 38 | 8.74 | | | Fallah, Amin | | | 1543 | IRI | 0.00 | 1 | -0.19 | 38 | -7.22 | | | Fallah, Aran | | | 1089 | IRI | 1.00 | 1 | 0.24 | 38 | 9.12 | |
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) | | | | Jouybar Age Categories Chess Tournament | Mazandaran | IRI | 2023-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1253 | 1288 | 2.00 | 4 | -0.28 | 38 | -10.64 | |
| | Poormosavi, Seyed Kanan | | | 1723 | IRI | 0.00 | 1 | -0.06 | 38 | -2.28 | | | Hasannia, Parsa | | | 1005 | IRI | 1.00 | 1 | 0.16 | 38 | 6.08 | | | Sadr Niaki, Seyyedeh Fatemeh | | | 1075 | IRI | 1.00 | 1 | 0.23 | 38 | 8.74 | | | Marzban, Hora | | | 1210 | IRI | 0.00 | 1 | -0.61 | 38 | -23.18 | |
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 |
| 1219 | 1288 | 5.00 | 7 | 0.87 | 38 | 33.06 | |
| | Rahimi, Kian | | | 1076 | IRI | 1.00 | 1 | 0.23 | 38 | 8.74 | | | Ahanpie, Mahbod | | | 1159 | IRI | 1.00 | 1 | 0.33 | 38 | 12.54 | | | Malaknezhad, Amirali | | | 1283 | IRI | 1.00 | 1 | 0.49 | 38 | 18.62 | | | Kolivand, Mohammad Ali | | | 1497 | IRI | 0.00 | 1 | -0.23 | 38 | -8.74 | | | Zarneshan, Arash | | | 1128 | IRI | 1.00 | 1 | 0.29 | 38 | 11.02 | | | Shorakayi, Ali | | | 1286 | IRI | 0.00 | 1 | -0.50 | 38 | -19.00 | | | Shokrzadeh Khameneh, Arian | | | 1106 | IRI | 1.00 | 1 | 0.26 | 38 | 9.88 | |
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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