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Individual Calculations May 2013 |
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| Kobo, Ori Total change: 12.15 | |   |
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| Dugo Fridman Memorial 2013 A | Rishon Le-Zion | ISR | 2013-02-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2234 | 2294 | 3.00 | 5 | 0.08 | 15 | 1.20 | |
|  Marcovici, Adrian | | | 2088 | ISR | 0.50 | 1 | -0.26 | 15 | -3.90 | |  Elbaum, Almog | | | 2072 | ISR | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Avrukh, Boris | g | | 2583 | ISR | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Mindlin, Alon | | | 2248 | ISR | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Kunin, Michael | | | 2178 | ISR | 1.00 | 1 | 0.34 | 15 | 5.10 | |
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 U16 Champ 2013 | Petach Tikva | ISR | 2013-03-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2007 | 2295 | 6.00 | 7 | 0.23 | 15 | 3.45 | |
| | Aharonovich, Itamar | | | 1960 | ISR | 0.50 | 1 | -0.38 | 15 | -5.70 | | | Reshef, Omer | | | 2219 | ISR | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Tartakovsky, Daniel | | | 1950 | ISR | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Bakalchuk, Johnatan | | | 2142 | ISR | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Lahav, Ben | | | 1932 | ISR | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Yerushalmi, Eran | | | 1895 * | ISR | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Ginchil, Shay | | | 1951 | ISR | 1.00 | 1 | 0.12 | 15 | 1.80 | | | * 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) | | | | Mark Centre Pesach A 2013 | Tel Aviv | ISR | 2013-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2139 | 2295 | 4.00 | 5 | 0.50 | 15 | 7.50 | |
| | Segal, Naum | | | 2066 | LAT | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Koren, Eyal | | | 2059 | ISR | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Zak, Uriel | m | | 2276 | ISR | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Shutzman, Joseph | f | | 2239 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Elbaum, Almog | | | 2054 | ISR | 1.00 | 1 | 0.20 | 15 | 3.00 | |
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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