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Individual Calculations September 2011 |
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| Atay, Sergen Total change: -31.95 | |   |
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| Liberation Day Chess Tournament-U18 | Izmit | TUR | 2011-06-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 1717 | 1.00 | 4 | -0.23 | 30 | -6.90 | |
|  Okay, Ilkin Ege | | | 1986 | TUR | 1.00 | 1 | 0.83 | 30 | 24.90 | |  Karabayir, Mustafa Yilmaz | | | 1881 | TUR | 0.00 | 1 | -0.28 | 30 | -8.40 | | | Gundogan, Cem | | | 1823 | TUR | 0.00 | 1 | -0.36 | 30 | -10.80 | | | Can, Melih Kaan | | | 1773 | TUR | 0.00 | 1 | -0.42 | 30 | -12.60 | |
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) | | | | July'11 Open Chess Tournament | Bursa | TUR | 2011-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2037 | 1717 | 1.00 | 3 | 0.59 | 30 | 17.70 | |
| | Okay, Koray | | | 2117 * | TUR | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Karaokcu, Erkin | | | 1976 | TUR | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Esen, Nejdet | | | 2019 | TUR | 1.00 | 1 | 0.85 | 30 | 25.50 | | | * 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) | | | | Turkish Youth Chess Championships-u15 | Istanbul | TUR | 2011-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1726 | 1717 | 1.00 | 5 | -1.45 | 30 | -43.50 | |
| | Burcu, Cagatay | | | 1861 | TUR | 0.00 | 1 | -0.31 | 30 | -9.30 | | | Ererdem, Gani Eren | | | 1996 | TUR | 0.00 | 1 | -0.16 | 30 | -4.80 | | | Tokmak, Halil Ibrahim | | | 1453 | TUR | 0.50 | 1 | -0.32 | 30 | -9.60 | | | Baykal, Muhammed | | | 1667 | TUR | 0.00 | 1 | -0.57 | 30 | -17.10 | | | Turek, Ismet | | | 1654 | TUR | 0.50 | 1 | -0.09 | 30 | -2.70 | |
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) | | | NOTE: K factor changed | | 19th Troy Chess Tournament-u16 | Canakkale | TUR | 2011-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1634 | 1717 | 2.50 | 4 | 0.05 | 15 | 0.75 | |
| | Gurtekin, Emre | | | 1509 | TUR | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Erdogan, Anil Berk | | | 1640 | TUR | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Yildirim, Ozgun Baris | | | 1715 | TUR | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Ozmen, Mustafa Lutfi Poyraz | | | 1670 | TUR | 0.00 | 1 | -0.57 | 15 | -8.55 | |
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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