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Individual Calculations January 2009 |
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| Kosashvili, Otar Total change: 3.30 | |   |
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| Int. Festival "IGI" U-16 | Tbilisi | GEO | 2008-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 1785 | 0.50 | 4 | -0.65 | 15 | -9.75 | |
|  Nikolashvili, Giorgi | | | 2135 | GEO | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Chkuaseli, Revaz | | | 1821 | GEO | 0.00 | 1 | -0.45 | 15 | -6.75 | |  Pipia, Beka | | | 1903 | GEO | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Kerashvili, Giorgi | | | 1975 | GEO | 0.00 | 1 | -0.25 | 15 | -3.75 | |
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) | | | | Tigran Petrosian Memorial | Tbilisi | GEO | 2008-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 1785 | 2.00 | 5 | 0.87 | 15 | 13.05 | |
| | Khotenashvili, Bela | | wg | 2135 | GEO | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kerashvili, Giorgi | | | 1975 | GEO | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Ervandian, Andro | | | 1910 | GEO | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Nikolashvili, Giorgi | | | 2135 | GEO | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Khurtsidze, Tornike | | | 1913 | GEO | 1.00 | 1 | 0.67 | 15 | 10.05 | |
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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