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Individual Calculations April 2021 |
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| Giller, Roy Total change: -124.08 | |   |
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| Israel youth league playoffs stage 1 | Various | ISR | 2020-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1476 | 1565 | 0.00 | 1 | -0.62 | 33 | -20.46 | |
|  Bar Ron, Yeshaiya | | | 1476 | ISR | 0.00 | 1 | -0.62 | 33 | -20.46 | |
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 Artzit Lenoar Merkaz 2021 Group B Rounds 2-3 | Varilus | ISR | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1375 | 1580 | 2.00 | 2 | 0.48 | 33 | 15.84 | |
|  Ovadia, Tomer | | | 1413 | ISR | 1.00 | 1 | 0.28 | 33 | 9.24 | | | Fester, Harel | | | 1337 | ISR | 1.00 | 1 | 0.20 | 33 | 6.60 | |
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 |
| 1309 | 1580 | 5.50 | 9 | -1.81 | 33 | -59.73 | |
| | Mendler, Omer | | | 1202 | ISR | 1.00 | 1 | 0.09 | 33 | 2.97 | | | Berlad, Asaf | | | 1221 | ISR | 0.00 | 1 | -0.90 | 33 | -29.70 | | | Afek, Itay | | | 1383 | ISR | 1.00 | 1 | 0.25 | 33 | 8.25 | | | Shachak, Ido | | | 1265 | ISR | 0.50 | 1 | -0.36 | 33 | -11.88 | | | Azoulay, Yehonatan | | | 1561 | ISR | 1.00 | 1 | 0.47 | 33 | 15.51 | | | Magen, Ofek | | | 1346 | ISR | 0.00 | 1 | -0.79 | 33 | -26.07 | | | Umanskiy, Stanislav | | | 1240 | ISR | 1.00 | 1 | 0.12 | 33 | 3.96 | | | Kfir, Nadav | | | 1226 | ISR | 0.00 | 1 | -0.89 | 33 | -29.37 | | | Gilor, Amit | | | 1340 | ISR | 1.00 | 1 | 0.20 | 33 | 6.60 | |
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 |
| 1309 | 1580 | 5.50 | 9 | -1.81 | 33 | -59.73 | |
| | Mendler, Omer | | | 1202 | ISR | 1.00 | 1 | 0.09 | 33 | 2.97 | | | Berlad, Asaf | | | 1221 | ISR | 0.00 | 1 | -0.90 | 33 | -29.70 | | | Afek, Itay | | | 1383 | ISR | 1.00 | 1 | 0.25 | 33 | 8.25 | | | Shachak, Ido | | | 1265 | ISR | 0.50 | 1 | -0.36 | 33 | -11.88 | | | Azoulay, Yehonatan | | | 1561 | ISR | 1.00 | 1 | 0.47 | 33 | 15.51 | | | Magen, Ofek | | | 1346 | ISR | 0.00 | 1 | -0.79 | 33 | -26.07 | | | Umanskiy, Stanislav | | | 1240 | ISR | 1.00 | 1 | 0.12 | 33 | 3.96 | | | Kfir, Nadav | | | 1226 | ISR | 0.00 | 1 | -0.89 | 33 | -29.37 | | | Gilor, Amit | | | 1340 | ISR | 1.00 | 1 | 0.20 | 33 | 6.60 | |
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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