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Individual Calculations April 2021 |
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| Efroimski, Marsel Total change: 21.00 | |   |
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| Scheveningen system winter 2020 Rishon-Lezion | Rishon Lezion | ISR | 2020-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2376 | 2351 | 4.50 | 8 | 0.76 | 20 | 15.20 | |
|  Emanuel, Yahav | f | | 2342 | ISR | 0.50 | 1 | -0.01 | 20 | -0.20 | | | Birnboim, Nathan | m | | 2381 | ISR | 1.00 | 1 | 0.54 | 20 | 10.80 | |  Emanuel, Yahav | f | | 2342 | ISR | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Kaspi, Alexander | m | | 2448 | ISR | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Mordechai, Hanan | f | | 2332 | ISR | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Birnboim, Nathan | m | | 2381 | ISR | 1.00 | 1 | 0.54 | 20 | 10.80 | | | Mordechai, Hanan | f | | 2332 | ISR | 0.50 | 1 | -0.03 | 20 | -0.60 | | | Kaspi, Alexander | m | | 2448 | 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 |
| 2424 | 2357 | 4.00 | 9 | 0.29 | 20 | 5.80 | |
| | Gorodetzky, David | m | | 2495 | ISR | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Boruchovsky, Avital | g | | 2541 | ISR | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Ben Ari, Yannay | f | | 2403 | ISR | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Gruenfeld, Yehuda | g | | 2412 | ISR | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Aizenberg, Benny | f | | 2307 | ISR | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Smirin, Ilia | g | | 2614 | ISR | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Parnes, Nadav | | | 2273 | ISR | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Haimovich, Tal | m | | 2375 | ISR | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Rozen, Eytan | m | | 2399 | ISR | 0.50 | 1 | 0.06 | 20 | 1.20 | |
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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