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Individual Calculations February 2020 |
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| Gamage, Desandhi Dhihansa Total change: -27.20 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 13 years Girls | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1153 | 1345 | 1.50 | 4 | -1.49 | 40 | -59.60 | |
|  Liyanage, G L Udara Punsandini | | | 1139 | SRI | 0.50 | 1 | -0.26 | 40 | -10.40 | |  Rathnayake, Tenuli Dhahamna | | | 1129 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Gamage, M Nuwanthi Silva | | | 1221 | SRI | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Dissanayake, D A Thavinsa Archani | | | 1123 | SRI | 0.00 | 1 | -0.78 | 40 | -31.20 | |
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 |
| 1215 | 1262 | 2.50 | 3 | 0.81 | 40 | 32.40 | |
| | Weerathunga, W A S H | | | 1116 | SRI | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Attanayaka, A M P M | | | 1396 | SRI | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Edirisinghe, D D | | | 1133 | SRI | 0.50 | 1 | -0.17 | 40 | -6.80 | |
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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