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Individual Calculations February 2019 |
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| Sandanayake, Nimansa Sasanduni Total change: -8.40 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 15 years Girls | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1334 | 1096 | 1.00 | 4 | 0.18 | 40 | 7.20 | |
|  Sarathchandra, Gihansa M | | | 1319 | SRI | 1.00 | 1 | 0.78 | 40 | 31.20 | | | Epa, W Buthmi J | | | 1328 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | |  Rathnayake, Maheesha Pabodhini | | | 1276 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Jayasuriya, Linali Andrea | | | 1412 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | |
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) | | | | 7th Kaluthara Chess Festival 2019 | Kaluthara | SRI | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1489 | 1163 | 0.00 | 3 | -0.39 | 40 | -15.60 | |
| | Bandara, S M Sanjaya D | | | 1461 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Thenuwara, Rashmika | | | 1502 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Lakmal, M A C | | | 1503 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | |
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) | | |
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