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Individual Calculations April 2009 |
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| T.g.m., Peiris Total change: -3.75 | |   |
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| 2nd JUGAL KISHORE NEWATIA MEMORIAL INTERNTIONAL OPEN RATING CHESS TOURNAMENT 2008 | TERPAPANTH BHAWAN, FANCY BAZAR, GUWAHATI 781001, ASSAM INDIA | IND | 2008-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1944 | 2099 | 4.00 | 7 | -0.82 | 15 | -12.30 | |
|  Laisram, Imocha | | | 2203 | IND | 0.00 | 1 | -0.36 | 15 | -5.40 | |  Manna, Aubhropratim | | | 1923 | IND | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Balasubramaniam, M. | | | 1749 | IND | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Sinha, Rajesh Kumar | | | 1980 | IND | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Wettasinghe, Vasanta | | | 1929 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Kumar, Maheswata | | | 1816 | IND | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Niraula, Niraj | | | 2011 | NEP | 0.50 | 1 | -0.12 | 15 | -1.80 | |
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 |
| 1877 | 2133 | 3.50 | 6 | -1.34 | 15 | -20.10 | |
| | Seneviratne, Shehan | | | 1783 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Hapuarachchi, H.l.m. | | | 1937 | SRI | 0.00 | 1 | -0.75 | 15 | -11.25 | | | Amarasena, Kaveesha | | | 1915 | SRI | 0.00 | 1 | -0.78 | 15 | -11.70 | | | Munasinghe, Shanaka | | | 1783 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Miraj, D.a. | | | 1984 | SRI | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Munasinghe, Lahiru | | | 1860 | SRI | 0.50 | 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 Inter Club Super League 08 | Colombo | SRI | 2009-02-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1949 | 2133 | 5.50 | 6 | 1.18 | 15 | 17.70 | |
| | Weerawardana, R | | | 2127 | SRI | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Dissanayake, Rs | | | 2045 | SRI | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Egodage, Kn | | | 1787 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Senavirathne, Shehan | | | 1783 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | De Moraes, Shamine | | | 1963 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Kumarasinghe, A.s. | | | 1990 | SRI | 1.00 | 1 | 0.31 | 15 | 4.65 | |
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) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2163 | 2133 | 3.50 | 6 | 0.66 | 15 | 9.90 | |
| | Wettasinha, Vasantha | | | 1929 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Alahakoon, Isuru | | | 1977 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Narayanan, Srinath | m | | 2397 | IND | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Laxman, R.r. | m | | 2478 | IND | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Jayasundara, P.k.u.m. | | | 1885 | SRI | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Deshmukh, Anup | m | | 2311 | IND | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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) | | | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2018 | 2133 | 4.50 | 7 | 0.07 | 15 | 1.05 | |
| | Premachanddra, Dimithri | | | 1837 | SRI | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Perera, L.n. | | | 2008 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Manish, Hamal | f | | 2089 | NEP | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Sharma, Dinesh K. | m | | 2394 | IND | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Pinto, Semuthu | | | 1845 | SRI | 0.50 | 1 | -0.34 | 15 | -5.10 | | | Premanath, Dinushki | | | 1783 | SRI | 1.00 | 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) | | |
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