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Individual Calculations February 2022 |
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| Jafarnejad, Jafar Total change: -15.20 | |   |
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| Iranian Seniors Chess Championships 2022-Over 50 | Gilan | IRI | 2022-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1635 | 1428 | 1.00 | 3 | 0.16 | 20 | 3.20 | |
|  Pouresmaeil, Naser | | | 1871 | IRI | 0.00 | 1 | -0.06 | 20 | -1.20 | | | Salarkia, Davood | | | 1385 | IRI | 1.00 | 1 | 0.44 | 20 | 8.80 | |  Tehrandoost, Mahmood | | | 1648 | IRI | 0.00 | 1 | -0.22 | 20 | -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) | | | | 18th Gilan second league 1400 Round 3-4 | Gilan | IRI | 2022-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1022 | 1428 | 0.00 | 1 | -0.92 | 20 | -18.40 | |
| | Karimnejad, Rayan | | | 1022 | IRI | 0.00 | 1 | -0.92 | 20 | -18.40 | |
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) | | |
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