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Individual Calculations April 2021 |
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| Yaroslavsky, Adam David Total change: -18.40 | |   |
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| Liga Ilit Lenoar 2021 Group C Rounds 2-3 | Various | ISR | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1482 | 1301 | 0.00 | 1 | -0.26 | 40 | -10.40 | |
|  Roytman, Yoel | | | 1482 | ISR | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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) | | | | Israel Youth Championship Finals 2021 U12 - Israel Eshel Memorial | Hakfar Hayarok | ISR | 2021-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1405 | 1301 | 2.50 | 7 | -0.10 | 40 | -4.00 | |
|  Kirsch, Yahel David | | | 1594 | ISR | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Azoulay, Yehonatan | | | 1561 | ISR | 1.00 | 1 | 0.82 | 40 | 32.80 | | | Blumenthal, Michael | | | 1416 | ISR | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Beitner, Yehonatan | | | 1275 | ISR | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Shachak, Ido | | | 1265 | ISR | 0.00 | 1 | -0.55 | 40 | -22.00 | | | Afek, Itay | | | 1383 | ISR | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Gilor, Amit | | | 1340 | ISR | 0.00 | 1 | -0.45 | 40 | -18.00 | |
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 girls chess championship under 12 | Ashdod | ISR | 2021-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1405 | 1301 | 2.50 | 7 | -0.10 | 40 | -4.00 | |
| | Kirsch, Yahel David | | | 1594 | ISR | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Azoulay, Yehonatan | | | 1561 | ISR | 1.00 | 1 | 0.82 | 40 | 32.80 | | | Blumenthal, Michael | | | 1416 | ISR | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Beitner, Yehonatan | | | 1275 | ISR | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Shachak, Ido | | | 1265 | ISR | 0.00 | 1 | -0.55 | 40 | -22.00 | | | Afek, Itay | | | 1383 | ISR | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Gilor, Amit | | | 1340 | ISR | 0.00 | 1 | -0.45 | 40 | -18.00 | |
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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