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Individual Calculations April 2021 |
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| Shefer, Uri Total change: 39.06 | |   |
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| Rishon Lezion automn 2020-21 upto 1800 | Rishon Lezion | ISR | 2020-12-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1398 | 1461 | 3.00 | 4 | 0.73 | 31 | 22.63 | |
|  Lapushnian, Maya | | | 1552 | ISR | 0.00 | 1 | -0.38 | 31 | -11.78 | | | Friedland, Benzi | | | 1190 | ISR | 1.00 | 1 | 0.17 | 31 | 5.27 | |  Harcabi, Ethan | | | 1136 | ISR | 1.00 | 1 | 0.13 | 31 | 4.03 | | | Waisberg, Arnold | | | 1714 | ISR | 1.00 | 1 | 0.81 | 31 | 25.11 | |
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) | | | | Liga Ilit Lenoar 2021 Group C Rounds 2-3 | Various | ISR | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 1471 | 0.50 | 2 | 0.29 | 31 | 8.99 | |
| | Robach, Shay | | | 1798 | ISR | 0.50 | 1 | 0.37 | 31 | 11.47 | | | Neiman, Maks | | | 1871 * | ISR | 0.00 | 1 | -0.08 | 31 | -2.48 | | | * 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) | | | | Israel Youth Championship Finals 2021 U12 - Israel Eshel Memorial | Hakfar Hayarok | ISR | 2021-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1384 | 1471 | 5.00 | 8 | 0.12 | 31 | 3.72 | |
| | Gilor, Amit | | | 1340 | ISR | 1.00 | 1 | 0.32 | 31 | 9.92 | | | Berlad, Asaf | | | 1221 | ISR | 0.50 | 1 | -0.31 | 31 | -9.61 | | | Blumenthal, Michael | | | 1416 | ISR | 0.00 | 1 | -0.58 | 31 | -17.98 | | | Beitner, Yehonatan | | | 1275 | ISR | 1.00 | 1 | 0.25 | 31 | 7.75 | | | Kirsch, Yahel David | | | 1594 | ISR | 0.00 | 1 | -0.33 | 31 | -10.23 | | | Kfir, Nadav | | | 1226 | ISR | 0.50 | 1 | -0.30 | 31 | -9.30 | | | Abitbul, Matan | | | 1376 | ISR | 1.00 | 1 | 0.37 | 31 | 11.47 | | | Dezent, Eyal | | | 1620 | ISR | 1.00 | 1 | 0.70 | 31 | 21.70 | |
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 |
| 1384 | 1471 | 5.00 | 8 | 0.12 | 31 | 3.72 | |
| | Gilor, Amit | | | 1340 | ISR | 1.00 | 1 | 0.32 | 31 | 9.92 | | | Berlad, Asaf | | | 1221 | ISR | 0.50 | 1 | -0.31 | 31 | -9.61 | | | Blumenthal, Michael | | | 1416 | ISR | 0.00 | 1 | -0.58 | 31 | -17.98 | | | Beitner, Yehonatan | | | 1275 | ISR | 1.00 | 1 | 0.25 | 31 | 7.75 | | | Kirsch, Yahel David | | | 1594 | ISR | 0.00 | 1 | -0.33 | 31 | -10.23 | | | Kfir, Nadav | | | 1226 | ISR | 0.50 | 1 | -0.30 | 31 | -9.30 | | | Abitbul, Matan | | | 1376 | ISR | 1.00 | 1 | 0.37 | 31 | 11.47 | | | Dezent, Eyal | | | 1620 | ISR | 1.00 | 1 | 0.70 | 31 | 21.70 | |
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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