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Individual Calculations April 2021 |
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| Tzidkiya, Yeshaayahu Total change: -4.60 | |   |
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| Elitzur GM Winter 2020 A Stage 1 | Petah Tikva | ISR | 2020-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2444 | 2377 | 1.00 | 6 | -1.48 | 20 | -29.60 | |
|  Peng, Li Min | m | | 2433 | UKR | 0.00 | 1 | -0.42 | 20 | -8.40 | |  Zlatin, Alexander | f | | 2343 | ISR | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Bernadskiy, Vitaliy | g | | 2619 | UKR | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Bronstein, Or | m | | 2427 | ISR | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Sivuk, Vitaly | g | | 2541 | UKR | 1.00 | 1 | 0.72 | 20 | 14.40 | | | Milikow, Yoav | f | | 2302 | ISR | 0.00 | 1 | -0.60 | 20 | -12.00 | |
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) | | | | Israeli Open Championship Finals 2020 | Haifa | ISR | 2021-03-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2465 | 2380 | 4.50 | 9 | 0.97 | 20 | 19.40 | |
| | Smirin, Ilia | g | | 2614 | ISR | 1.00 | 1 | 0.79 | 20 | 15.80 | | | Rechlis, Gad | g | | 2513 | ISR | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Nabaty, Tamir | g | | 2638 | ISR | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Boruchovsky, Avital | g | | 2541 | ISR | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Steinberg, Nitzan | g | | 2553 | ISR | 1.00 | 1 | 0.73 | 20 | 14.60 | | | Kobo, Ori | g | | 2460 | ISR | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Birnboim, Nathan | m | | 2381 | ISR | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Kochavi, Ori | f | | 2273 | ISR | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Lahav, Michal | | wm | 2216 | ISR | 1.00 | 1 | 0.28 | 20 | 5.60 | |
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) | | | | Liga Ilit Lenoar 2021 Group A Rounds 1-3 | Various | ISR | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1980 | 2380 | 1.00 | 1 | 0.08 | 20 | 1.60 | |
| | Efrati, Alon | | | 1980 * | ISR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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 U18 - Israel Eshel Memorial | Hakfar Hayarok | ISR | 2021-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2212 | 2380 | 6.50 | 9 | 0.20 | 20 | 4.00 | |
| | Stolyarsky, Yegor | | | 2063 | ISR | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Iliaguev, Daniel | | | 2103 | ISR | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Zemach, Roee | f | | 2292 | ISR | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Ben Ari, Yannay | f | | 2403 | ISR | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Gorodetzky, Matan | f | | 2253 | ISR | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Kadria, Shay | | | 2086 | ISR | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Globus, Or | f | | 2401 | ISR | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Ehrlich, Roy | | | 2004 | ISR | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Milikow, Yoav | f | | 2302 | ISR | 1.00 | 1 | 0.39 | 20 | 7.80 | |
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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