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Individual Calculations February 2023 |
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| Cohen, Ofer Total change: -12.00 | |   |
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| Kfar Saba Championship for Veterans in Chess | Kfar Saba | ISR | 2022-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1588 | 1557 | 3.00 | 7 | -0.22 | 20 | -4.40 | |
|  Schwarz, Harry | | | 1750 | ISR | 0.00 | 1 | -0.25 | 20 | -5.00 | |  Galant, Chaim | | | 1350 | ISR | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Kopelevitch, Eli | | | 1738 | ISR | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Lubish, Mordechai | | | 1549 | ISR | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Dor, Avigdor | | | 1531 | ISR | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Siti, Eli | | | 1616 | ISR | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Gorelikov, Israel | | | 1580 | ISR | 1.00 | 1 | 0.53 | 20 | 10.60 | |
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) | | | | League Bet Sharon 2023 1-2 | Israel | ISR | 2023-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1642 | 1557 | 0.00 | 1 | -0.38 | 20 | -7.60 | |
| | Goldberg, Alon | | | 1642 | ISR | 0.00 | 1 | -0.38 | 20 | -7.60 | |
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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