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Individual Calculations July 2009 |
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| Peiris, T.g.m. Total change: -58.50 | |   |
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| 2nd Sri Lanka IM Tournament | Kegalle | SRI | 2009-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2250 | 2133 | 4.00 | 14 | -1.04 | 15 | -15.60 | |
|  Anuruddha, G.c. | | | 2173 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | |  Russell, M.k.a. | | | 2209 | SRI | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Kurukulasuriya, Prasanna | | | 2092 | SRI | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Deshmukh, Anup | m | | 2311 | SRI | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Narayanan, Srinath | m | | 2397 | SRI | 1.00 | 1 | 0.82 | 15 | 12.30 | | | Manish, Hamal | f | | 2089 | SRI | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Laxman, R.r. | m | | 2478 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Russell, M.k.a. | | | 2209 | SRI | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Kurukulasuriya, Prasanna | | | 2092 | SRI | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Deshmukh, Anup | m | | 2311 | SRI | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Narayanan, Srinath | m | | 2397 | SRI | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Manish, Hamal | f | | 2089 | SRI | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Laxman, R.r. | m | | 2478 | SRI | 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) | | | | Sri Lanka B Chess Championship 2009 | Colombo | SRI | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2008 | 2129 | 4.50 | 8 | -0.77 | 15 | -11.55 | |
| | Pinto, Semuthu | | | 1887 | SRI | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Peiris, T.s.s. | | | 1938 | SRI | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Kurukulasuriya, Prasanna | | | 2085 | SRI | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Edirisinghe, Dulan | | | 2128 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Mallawarachchi, T.s. | | | 2075 | SRI | 0.50 | 1 | -0.08 | 15 | -1.20 | | | De Moraes, Shamin | | | 1951 | SRI | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Alahakoon, Isuru | | | 1947 | SRI | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Wijesuriya, G.l. | | | 2049 | SRI | 0.50 | 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) | | | | Sri Lanka National Chess Championship 2009 | Colombo | SRI | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 2129 | 5.00 | 12 | -2.09 | 15 | -31.35 | |
| | Wijesuriya, G Luxman | | | 2049 | SRI | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Edirisinghe, Dulan | | | 2128 | SRI | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Mallawarachchi, T S | | | 2075 | SRI | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Annurudha, G C | | | 2187 | SRI | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Russell, M K A | | | 2241 | SRI | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Hapuarachchi, H L M | | | 1963 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Kottahachchy, K O V | | | 2050 | SRI | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Wijekoon, Chandana | | | 1965 | SRI | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Kalugampitiya, R S | | | 2126 | SRI | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Gunasinghe, S R | | | 1940 | SRI | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Jayawardena, M | | | 1920 | SRI | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Kurukulasuriya, Prasanna | | | 2085 | SRI | 0.00 | 1 | -0.56 | 15 | -8.40 | |
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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