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Individual Calculations April 2021 |
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| Kochavi, Ori Total change: 16.00 | |   |
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| Elitzur IM Winter 2020 B Stage 1 | Petah Tikva | ISR | 2020-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2323 | 2285 | 4.50 | 8 | 0.89 | 20 | 17.80 | |
|  Aizenberg, Benny | f | | 2304 | ISR | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Nedobora, Mikhail | m | | 2351 | UKR | 0.00 | 1 | -0.41 | 20 | -8.20 | |  Peng, Li Min | m | | 2433 | UKR | 0.50 | 1 | 0.20 | 20 | 4.00 | | | Sivuk, Vitaly | g | | 2541 | UKR | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Yaniv, Yuval | f | | 2244 | ISR | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Vagman, Roy | c | | 2108 | ISR | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Kuprijanov, Anatoly | f | | 2224 | RUS | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Levin, Guy | f | | 2382 | ISR | 0.50 | 1 | 0.13 | 20 | 2.60 | |
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) | | | | Israeli Open Championship Finals 2020 | Haifa | ISR | 2021-03-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2332 | 2273 | 5.00 | 9 | 1.26 | 20 | 25.20 | |
| | Gruenfeld, Yehuda | g | | 2412 | ISR | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Birnboim, Nathan | m | | 2381 | ISR | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Parnes, Nadav | | | 2273 | ISR | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Ben Artzi, Ido | m | | 2368 | ISR | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Iliaguev, Nisim | f | | 2332 | ISR | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Katz, Kiril | | | 1957 | ISR | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Shohat, Yotam | f | | 2371 | ISR | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Tzidkiya, Yeshaayahu | f | | 2380 | ISR | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Rechlis, Gad | g | | 2513 | ISR | 0.50 | 1 | 0.30 | 20 | 6.00 | |
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) | | | | Liga Ilit Lenoar 2021 Group D Rounds 2-3 | Various | ISR | 2021-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1993 | 2273 | 2.00 | 2 | 0.37 | 20 | 7.40 | |
| | Vagman, Roy | c | | 2112 | ISR | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Pelech, Roee | | | 1873 * | 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 |
| 2113 | 2273 | 4.50 | 9 | -1.72 | 20 | -34.40 | |
| | Ehrlich, Roy | | | 2004 | ISR | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Sheinkman, Lidan | | | 1895 | ISR | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Globus, Or | f | | 2401 | ISR | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Neiman, Maks | | | 1993 | ISR | 0.00 | 1 | -0.84 | 20 | -16.80 | | | Friedland, Eldar | | | 2034 | ISR | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Levitan, Ronit | | wc | 2048 | ISR | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Milikow, Yoav | f | | 2302 | ISR | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Gorodetzky, Matan | f | | 2253 | ISR | 0.00 | 1 | -0.53 | 20 | -10.60 | | | Kadria, Shay | | | 2086 | ISR | 1.00 | 1 | 0.26 | 20 | 5.20 | |
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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