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Individual Calculations April 2021 |
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| Afek, Itay Total change: -65.74 | |   |
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| Liga Artzit Lenoar Merkaz 2021 Group B Rounds 2-3 | Varilus | ISR | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1185 | 1383 | 2.00 | 2 | 0.51 | 38 | 19.38 | |
|  Wolf, Eitan | | | 1079 | ISR | 1.00 | 1 | 0.14 | 38 | 5.32 | | | Dror, Itan | | | 1291 | ISR | 1.00 | 1 | 0.37 | 38 | 14.06 | |
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 |
| 1323 | 1383 | 3.50 | 8 | -1.12 | 38 | -42.56 | |
| | Azoulay, Yehonatan | | | 1561 | ISR | 0.50 | 1 | 0.23 | 38 | 8.74 | |  Beitner, Yehonatan | | | 1275 | ISR | 0.50 | 1 | -0.15 | 38 | -5.70 | | | Giller, Roy | | | 1580 | ISR | 0.00 | 1 | -0.25 | 38 | -9.50 | | | Perelman, Eric | | | 1136 | ISR | 1.00 | 1 | 0.19 | 38 | 7.22 | | | Taragan, Uri | | | 1383 | ISR | 0.50 | 1 | 0.00 | 38 | 0.00 | | | Krupnik, Benaya | | | 1142 | ISR | 0.00 | 1 | -0.80 | 38 | -30.40 | | | Yaroslavsky, Adam David | | | 1301 | ISR | 0.00 | 1 | -0.61 | 38 | -23.18 | | | Fishov, Matan | | | 1205 | ISR | 1.00 | 1 | 0.27 | 38 | 10.26 | |
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 |
| 1323 | 1383 | 3.50 | 8 | -1.12 | 38 | -42.56 | |
| | Azoulay, Yehonatan | | | 1561 | ISR | 0.50 | 1 | 0.23 | 38 | 8.74 | | | Beitner, Yehonatan | | | 1275 | ISR | 0.50 | 1 | -0.15 | 38 | -5.70 | | | Giller, Roy | | | 1580 | ISR | 0.00 | 1 | -0.25 | 38 | -9.50 | | | Perelman, Eric | | | 1136 | ISR | 1.00 | 1 | 0.19 | 38 | 7.22 | | | Taragan, Uri | | | 1383 | ISR | 0.50 | 1 | 0.00 | 38 | 0.00 | | | Krupnik, Benaya | | | 1142 | ISR | 0.00 | 1 | -0.80 | 38 | -30.40 | | | Yaroslavsky, Adam David | | | 1301 | ISR | 0.00 | 1 | -0.61 | 38 | -23.18 | | | Fishov, Matan | | | 1205 | ISR | 1.00 | 1 | 0.27 | 38 | 10.26 | |
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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