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Individual Calculations November 2019 |
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| Serpik, Ilia Total change: 18.60 | |   |
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| 41st Annual Southern California Open | Newport Beach, California | USA | 2019-08-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 2144 | 3.00 | 3 | 0.88 | 20 | 17.60 | |
|  Xu, Chang | | | 1791 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | |  Akopian, Robert | | | 2015 | USA | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Somalwar, Anaiy | | | 2098 | USA | 1.00 | 1 | 0.44 | 20 | 8.80 | |
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) | | | | Martin Soong's Memorial Open | Los Angeles, California | USA | 2019-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2077 | 2144 | 3.00 | 5 | 0.05 | 20 | 1.00 | |
| | Chen, Jonathan | | | 2011 | USA | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Eidelman, Gabriel | | | 2076 | USA | 0.50 | 1 | -0.09 | 20 | -1.80 | | | Salik, Serkan | | | 2015 | USA | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Shlyakhtenko, Robert | c | | 2238 | USA | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Wen, Teddie | | | 2043 | USA | 1.00 | 1 | 0.36 | 20 | 7.20 | |
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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