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Individual Calculations January 2009 |
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| Perera, W C C Total change: -0.35 | |   |
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| World Youth Chess Championships 2008 - Open 14 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2064 | 1929 | 1.50 | 6 | -0.47 | 25 | -11.75 | |
|  Zhou, Yang-Fan | | | 2276 | ENG | 0.00 | 1 | -0.11 | 25 | -2.75 | |  Modi, Jaishil | | | 1613 | RSA | 1.00 | 1 | 0.13 | 25 | 3.25 | | | Emiroglu, Cankut | | | 2101 | TUR | 0.00 | 1 | -0.27 | 25 | -6.75 | | | Mammadov, Zaur Fazahir Oglu | | | 2132 | AZE | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Nakauchi, Gene | f | | 2104 | AUS | 0.00 | 1 | -0.27 | 25 | -6.75 | | | Franklin, Samuel, G A | | | 2156 | ENG | 0.50 | 1 | 0.29 | 25 | 7.25 | |
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 | | Asian Schools Chess Championship, Colombo 2008 [Under 15 Boys] | Colombo | SRI | 2008-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1798 | 1929 | 6.00 | 8 | 0.76 | 15 | 11.40 | |
| | Ajmera, Atishay | | | 1987 | IND | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Munasinghe, Thisura D. | | | 1791 | SRI | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Samaranayake, K.p.r.n. | | | 1595 | SRI | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Sachintha, D.m. Navindu | | | 1595 | SRI | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Kottahachchy, K.o.v. | | | 2017 | SRI | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Pinto, M.g.semuthu | | | 1874 | SRI | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Egodage, Keshan Nayanajith | | | 1879 | SRI | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Rajapakse, R.m.t.c. | | | 1646 | SRI | 0.50 | 1 | -0.34 | 15 | -5.10 | |
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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