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Individual Calculations January 2009 |
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| Matikozyan, Andranik Total change: -9.60 | |   |
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| Los Angeles Open | Los Angeles, CA | USA | 2008-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2327 | 2462 | 0.50 | 2 | -0.81 | 10 | -8.10 | |
|  Khachiyan, Melikset | g | | 2508 | USA | 0.00 | 1 | -0.44 | 10 | -4.40 | |  Garcia, Carlos | | | 2145 | CUB | 0.50 | 1 | -0.37 | 10 | -3.70 | |
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) | | | | 44th Annual American Open | Los Angeles, California | USA | 2008-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2420 | 2462 | 1.50 | 3 | -0.15 | 10 | -1.50 | |
| | Khachiyan, Melikset | g | | 2508 | USA | 0.50 | 1 | 0.06 | 10 | 0.60 | | | Zierk, Steven C | | | 2240 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Sevillano, Enrico | m | | 2512 | USA | 0.00 | 1 | -0.43 | 10 | -4.30 | |
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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