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Individual Calculations April 2009 |
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| Petrosyan, Hovhannes Total change: -23.50 | |   |
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| Chess House 2008 Ch. | Yerevan | ARM | 2008-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2197 | 3.50 | 8 | -0.52 | 25 | -13.00 | |
|  Gasparian, Tigran | | | 2281 | ARM | 0.00 | 1 | -0.38 | 25 | -9.50 | |  Baghdasaryan, Vahe | | | 2246 | ARM | 0.00 | 1 | -0.43 | 25 | -10.75 | | | Khojayan, Vardan | | | 2238 | ARM | 1.00 | 1 | 0.56 | 25 | 14.00 | | | Mesropian, Khachatur | | | 2161 | ARM | 1.00 | 1 | 0.45 | 25 | 11.25 | | | Vardanian, Haik G. | | | 2227 | ARM | 0.00 | 1 | -0.46 | 25 | -11.50 | | | Hovhannisyan, Yervand | | | 2144 | ARM | 0.00 | 1 | -0.57 | 25 | -14.25 | | | Tevosian, Varazdat | | | 2088 | ARM | 1.00 | 1 | 0.35 | 25 | 8.75 | | | Khachatrian, Garik | | | 2165 | ARM | 0.50 | 1 | -0.04 | 25 | -1.00 | |
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) | | | | 79th Yerevan Ch. SF | Yerevan | ARM | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 2197 | 2.50 | 4 | -0.42 | 25 | -10.50 | |
| | Karamyan, Levon | | | 1909 | ARM | 1.00 | 1 | 0.16 | 25 | 4.00 | | | Gabuzyan, Hovhannes | | | 2114 | ARM | 0.50 | 1 | -0.11 | 25 | -2.75 | | | Petrosyan, Tigran S. | | | 2011 | ARM | 0.00 | 1 | -0.74 | 25 | -18.50 | | | Avetisyan, Mikael | | | 2018 | ARM | 1.00 | 1 | 0.27 | 25 | 6.75 | |
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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