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Individual Calculations February 2020 |
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| Padukka, P V Gayuru Hansana Total change: 64.40 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 15 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1355 | 1183 | 2.50 | 5 | 1.04 | 40 | 41.60 | |
|  Gamage, Liviru Hansana | | | 1475 | SRI | 0.50 | 1 | 0.35 | 40 | 14.00 | |  Akasha, J P Vihanga | | | 1490 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Thenuharshan, G | | | 1015 | SRI | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Ramanayaka, Y R P M | | | 1395 | SRI | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Abeysinghe, S M A M | | | 1400 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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) | | | | Battle of the Kings - All Island Schools Team Chess Championship 2020 | Colombo | SRI | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1217 | 1180 | 2.50 | 4 | 0.57 | 40 | 22.80 | |
| | Weragoda, W A S Niwanthaka | | | 1026 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | De Alwis, Tharun Anjalo | | | 1073 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Javeenarsh, L | | | 1197 | SRI | 1.00 | 1 | 0.52 | 40 | 20.80 | | | Abeysinghe, H M H Janandani | | | 1571 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | |
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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