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Individual Calculations July 2010 |
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| Premachandra, G T D Total change: -8.40 | |   |
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| Sri Lanka National B Chess Championship 2010 | Colombo | SRI | 2010-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 1907 | 4.00 | 9 | 0.54 | 15 | 8.10 | |
|  Kalugampitiya, R S | | | 2157 | SRI | 1.00 | 1 | 0.81 | 15 | 12.15 | |  Peiris, T S S | | | 2003 | SRI | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Dissanayake, R S | | | 2030 | SRI | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Weerawardane, R | | | 2165 | SRI | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Kottahachchy, K O V | | | 2017 | SRI | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Senanayaka, P D | | | 1848 | SRI | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Fonseka, C K D | | | 2000 | SRI | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Alahakoon, Isuru | | | 1954 | SRI | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Dissanayake, R D A C | | | 1786 | SRI | 0.50 | 1 | -0.16 | 15 | -2.40 | |
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) | | | | 1st Kandy Open Chess Championship 2010 | Kandy | SRI | 2010-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1711 | 1906 | 2.50 | 5 | -1.10 | 15 | -16.50 | |
| | Punchihewa, Kokila Prageeth | | | 1506 * | SRI | 0.50 | 1 | -0.42 | 15 | -6.30 | | | Kumara, C M S Praneeth | | | 1739 | SRI | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Kodisinghe, Hirushika | | | 1571 | SRI | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Wijesinghe, D D | | | 2074 | SRI | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Rajapakse, R M T C | | | 1666 | SRI | 0.50 | 1 | -0.30 | 15 | -4.50 | | | * 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) | | |
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