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Individual Calculations January 2020 |
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| Biriya, Yadollah Total change: -19.60 | |   |
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| 17th Gilan First League 1398 Round 4-5 | Gilan | IRI | 2019-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1781 | 1505 | 0.00 | 2 | -0.33 | 20 | -6.60 | |
|  Koochaki Delijani, Akbar | | | 1752 | IRI | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Rezaei, Mahyar | | | 1809 | IRI | 0.00 | 1 | -0.14 | 20 | -2.80 | |
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) | | | | 17th Gilan First League 1398 Round 6-7 | Gilan | IRI | 2019-12-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1762 | 1493 | 2.00 | 2 | 1.60 | 20 | 32.00 | |
|  Kheyrkhah, Bahram | | | 1630 | IRI | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Hooshdarmahjoob, Navid | | | 1893 * | IRI | 1.00 | 1 | 0.92 | 20 | 18.40 | | | * 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) | | | | 2nd Boss Cup Standard Chess Tournament [Under 2100] | Gilan | IRI | 2019-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1478 | 1493 | 1.50 | 7 | -2.25 | 20 | -45.00 | |
| | Rezaee Saravani, Mahmood | | | 1799 | IRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Shahmohammadi, Dorsa | | | 1177 | IRI | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Rahmani Siyah Larz, Iraj | | | 1416 | IRI | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Biriya, Mohammadamin | | | 1892 | IRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Mohammadzadeh, Sepehr | | | 1397 | IRI | 0.00 | 1 | -0.63 | 20 | -12.60 | | | Meknatjou, Ashkan | | | 1373 | IRI | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Bolouri, Arad | | | 1294 | IRI | 0.00 | 1 | -0.76 | 20 | -15.20 | |
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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