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Individual Calculations January 2020 |
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| Biriya, Mohammadamin Total change: -96.80 | |   |
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| 17th Gilan Super League 1398 Round 4-5 | Gilan | IRI | 2019-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2055 | 1892 | 0.00 | 2 | -0.65 | 40 | -26.00 | |
|  Masoumi, Sahar | | | 1862 | IRI | 0.00 | 1 | -0.54 | 40 | -21.60 | |  Faghirnavaz, Ali | | | 2248 | IRI | 0.00 | 1 | -0.11 | 40 | -4.40 | |
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) | | | | 17th Gilan Super League 1398 Round 6-7 | Gilan | IRI | 2019-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1748 | 1892 | 1.50 | 2 | 0.15 | 40 | 6.00 | |
| | Nezamivand Chegini, Yaser | | | 1881 | IRI | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Mohammadi, Melika | | | 1615 | IRI | 1.00 | 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) | | | | 2nd Boss Cup Standard Chess Tournament [Under 2100] | Gilan | IRI | 2019-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1650 | 1892 | 5.00 | 9 | -1.92 | 40 | -76.80 | |
| | Partovi, Mohammadhosein | | | 1492 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Shakari, Atoosa | | | 1509 | IRI | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Ezzati, Fereidoon | | | 2012 | IRI | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Niazi, Arash | | | 1768 | IRI | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Biriya, Yadollah | | | 1493 | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Jamalzadeh, Morteza | | | 1784 | IRI | 0.00 | 1 | -0.65 | 40 | -26.00 | | | Zarbini, Khashayar | | | 1575 | IRI | 0.50 | 1 | -0.37 | 40 | -14.80 | | | Esmaeilpour Chirani, Morteza | | | 1492 * | IRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Shafiei, Mahdi | | | 1724 | IRI | 0.00 | 1 | -0.72 | 40 | -28.80 | | | * 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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