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Individual Calculations July 2010 |
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| Perera, W.c.c Total change: 54.90 | |   |
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| Sri Lanka Major Division Kandy Chess Championship 2010 | Kandy | SRI | 2010-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1777 | 1942 | 4.00 | 5 | 0.52 | 15 | 7.80 | |
|  Kuruppu, Supun Dasantha | | | 1542 * | SRI | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Kodagoda, C.s | | | 1726 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | |  Kumara, Sisira K.p | | | 1819 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Perera, L.n | | | 1982 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Wickramanayake, T.u | | | 1815 | SRI | 0.50 | 1 | -0.17 | 15 | -2.55 | | | * 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) | | | | Sri Lanka National B Chess Championship 2010 | Colombo | SRI | 2010-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1928 | 1942 | 5.50 | 8 | 1.38 | 15 | 20.70 | |
| | Harishman, S | | | 1716 | SRI | 0.00 | 1 | -0.79 | 15 | -11.85 | | | Samaranayake, K P R N | | | 1669 | SRI | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Prabajith, Asela | | | 1820 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Kurukulasuriya, Prasanna | | | 2057 | SRI | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Fonseka, C K D | | | 2000 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Weerawardane, R | | | 2165 | SRI | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Peiris, T S S | | | 2003 | SRI | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Bhagya, Viman | | | 1992 | SRI | 0.50 | 1 | 0.07 | 15 | 1.05 | |
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 National Chess Championship 2010 | Colombo | SRI | 2010-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 1963 | 7.00 | 13 | 1.76 | 15 | 26.40 | |
| | Weerawardane, R | | | 2165 | SRI | 1.00 | 1 | 0.76 | 15 | 11.40 | | | De Silva, Osheen | | | 1948 | SRI | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Pieris, T D R | | | 2062 | SRI | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Koggala, W S V K | | | 1940 | SRI | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Dissanayake, R S | | | 2030 | SRI | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Jayasundara, P K U M | | | 1954 | SRI | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Bandara, P M R L | | | 1995 | SRI | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Anuruddha, G C | | | 2120 | SRI | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Athukorala, P M A B | | | 2127 | SRI | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Russell, M K A | | | 2269 | SRI | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Wijekoon, Chandana | | | 1958 | SRI | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Amarasena, Kaveesha | | | 1926 | SRI | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Peiris, T S S | | | 2003 | SRI | 1.00 | 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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