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Individual Calculations April 2009 |
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| Kurukulasuriya, Prasanna Total change: -7.50 | |   |
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| Asian Club Cup | Al Ain | UAE | 2008-12-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2332 | 2092 | 0.00 | 6 | -1.36 | 15 | -20.40 | |
|  Laxman, R R | m | | 2442 | IND | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Al-Tarbosh, Ward | f | | 2137 | SYR | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Kakageldyev, Amanmurad | m | | 2442 | TKM | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Alsharfi, S S | | | 2136 | YEM | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Eid, Fadi | m | | 2390 | LIB | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Diu, Viacheslav | m | | 2442 | RUS | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 2092 | 4.50 | 7 | -0.57 | 15 | -8.55 | |
| | Amarasinghe, A.a.c.b.j.b. | | | 1925 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Pinto, Semuthu | | | 1845 | SRI | 0.00 | 1 | -0.81 | 15 | -12.15 | | | Kavikeshawa, P.b. | | | 1895 | SRI | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Jayawardena, Mihiranga | | | 1921 | SRI | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Subhani, D.ashraf | | | 1994 | IND | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Perera, W.c.c. | | | 1929 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Hapuarachchi, H.l.m. | | | 1937 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | |
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) | | | | Sri Lanka Inter Club Super League 08 | Colombo | SRI | 2009-02-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1851 | 2092 | 2.50 | 3 | 0.16 | 15 | 2.40 | |
| | Kavinda, Akhila | | | 2020 | SRI | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Senavirathne, Shehan | | | 1742 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Rabel, Chinthaka | | | 1792 | SRI | 1.00 | 1 | 0.15 | 15 | 2.25 | |
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) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2046 | 2092 | 5.00 | 7 | 1.08 | 15 | 16.20 | |
| | Kushagra, Sharma | | | 1762 | IND | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Laxman, R.r. | m | | 2442 | IND | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Anududdha, Chinthaka | | | 2173 | SRI | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Pinto, Semuthu | | | 1845 | SRI | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Russell, M.k.a. | | | 2209 | SRI | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Amarasinghe, A.a.c.b. | | | 1925 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Fernando, J.m.m.p. | | | 1966 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | |
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) | | | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 2092 | 4.50 | 7 | 0.19 | 15 | 2.85 | |
| | Lamawansa, Yasas | | | 1772 | SRI | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Gunasinghe, S.r. | | | 1958 | SRI | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Liyanage, N.p. | | | 1951 | SRI | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Narayanan, Srinath | m | | 2397 | IND | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Perera, Anjana | | | 1835 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Wettasinghe, Vasantha | | | 1929 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.00 | 1 | -0.39 | 15 | -5.85 | |
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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