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Individual Calculations August 2023 |
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| David, Idan Total change: -1.20 | |   |
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| Kfar Saba Open Chess Championship 2023 | Kfar Saba | ISR | 2023-06-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1652 | 1508 | 4.00 | 8 | 1.11 | 40 | 44.40 | |
|  Noy, Eyal | | | 2158 | ISR | 0.00 | 1 | -0.01 | 40 | -0.40 | |  Grechin, Yan | | | 1168 | ISR | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Gadasi, Noam | | wc | 1801 | ISR | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Botvinnik, Roman | | | 1362 | ISR | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Faust, Roi | | | 1832 | ISR | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Ofir, Nevo | | | 1660 | ISR | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Etzion, Oded | | | 1740 | ISR | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Cohen, Ofer | | | 1498 | ISR | 1.00 | 1 | 0.49 | 40 | 19.60 | |
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) | | | | 13th Kiryat Ono Summer Festival Open B | Kiryat Ono | ISR | 2023-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1487 | 1508 | 1.50 | 5 | -1.14 | 40 | -45.60 | |
| | Magen, Ofek | | | 1574 | ISR | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Shifrin, Evgeny | | | 1716 | ISR | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Sivan, Guy | | | 1372 | ISR | 0.50 | 1 | -0.18 | 40 | -7.20 | | | Cohen, Israel | | | 1340 | ISR | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Gilev, Arthur | | | 1433 | ISR | 0.50 | 1 | -0.10 | 40 | -4.00 | |
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) | | |
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