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Individual Calculations August 2018 |
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| Jafari, Amirhossein Total change: -57.20 | |   |
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| Gilan chess Championship 1397 | Rasht | IRI | 2018-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1542 | 1191 | 0.00 | 4 | -0.45 | 40 | -18.00 | |
|  Behzad Nazif, Parva | | | 1591 * | IRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Khosh Ravesh, Alireza | | | 1591 * | IRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rahmani Siyah Larz, Iraj | | | 1522 | IRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Yazdani, Ava | | | 1465 | IRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | * 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) | | | | Gilan Boys Under10 Championshipm 1397 | Rasht | IRI | 2018-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1197 | 1191 | 0.50 | 3 | -0.98 | 40 | -39.20 | |
|  Yazdani, Mohammadhosein | | | 1375 | IRI | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Bolandakhtar, Ata | | | 1192 | IRI | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Mohammadzadeh, Sepehr | | | 1024 | IRI | 0.00 | 1 | -0.72 | 40 | -28.80 | |
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) | | |
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