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Individual Calculations January 2019 |
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| Roytman, Yoel Total change: 22.80 | |   |
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| Artzit Youth League - South 2018/9 5-7 | Various | ISR | 2018-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1359 | 1435 | 2.00 | 2 | 0.79 | 40 | 31.60 | |
|  Koushnir, Ron | | | 1355 | ISR | 1.00 | 1 | 0.39 | 40 | 15.60 | |  Borodety, Itamar | | | 1363 | ISR | 1.00 | 1 | 0.40 | 40 | 16.00 | |
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) | | | | Israel Youth Championship U13 Qualifier 2018 South | Mevaseret Zion | ISR | 2018-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1356 | 1435 | 1.00 | 2 | -0.22 | 40 | -8.80 | |
| | Kaminetsky, Roee | | | 1423 | ISR | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Jeruchim, Zohar | | | 1288 | ISR | 0.00 | 1 | -0.70 | 40 | -28.00 | |
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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