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Individual Calculations July 2010 |
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| Peiris, T S S Total change: 3.75 | |   |
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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 |
| 1915 | 2003 | 6.50 | 10 | 0.36 | 15 | 5.40 | |
|  Aktar, M R | | | 1801 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | |  Premachandra, G T D | | | 1907 | SRI | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Kumara, C M S Praneeth | | | 1739 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Jayawardena, M | | | 1945 | SRI | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Alahakoon, Isuru | | | 1954 | SRI | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Mallawarachchi, T S | | | 2029 | SRI | 0.50 | 1 | 0.04 | 15 | 0.60 | | | De Silva, Osheen | | | 1930 | SRI | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Jayasundara, P K U M | | | 1943 | SRI | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Perera, W C C | | | 1942 | SRI | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Wijekoon, Chandana | | | 1961 | SRI | 0.50 | 1 | -0.06 | 15 | -0.90 | |
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 2010 | Colombo | SRI | 2010-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2035 | 2003 | 6.00 | 13 | 0.00 | 15 | 0.00 | |
| | Bandara, P M R L | | | 1995 | SRI | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Anuruddha, G C | | | 2120 | SRI | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Athukorala, P M A B | | | 2127 | SRI | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Russell, M K A | | | 2269 | SRI | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Wijekoon, Chandana | | | 1958 | SRI | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Amarasena, Kaveesha | | | 1926 | SRI | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Jayasundara, P K U M | | | 1954 | SRI | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Weerawardane, R | | | 2165 | SRI | 1.00 | 1 | 0.71 | 15 | 10.65 | | | De Silva, Osheen | | | 1948 | SRI | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Pieris, T D R | | | 2062 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Koggala, W S V K | | | 1940 | SRI | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Dissanayake, R S | | | 2030 | SRI | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Perera, W C C | | | 1963 | 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) | | | | 1st Kandy Open Chess Championship 2010 | Kandy | SRI | 2010-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1813 | 2003 | 5.00 | 7 | -0.11 | 15 | -1.65 | |
| | Kodisinghe, Hirushika | | | 1603 * | SRI | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Aktar, M R | | | 1804 | SRI | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Sushrutha, Reddy | | | 1853 | IND | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Sabhareesh, M | | | 1727 | IND | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Herath, H M L Y | | | 1861 | SRI | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Bandara, A J K D | | | 1827 | SRI | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Hapuarachchi, H L M | | | 2018 | SRI | 0.50 | 1 | 0.02 | 15 | 0.30 | | | * 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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