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Individual Calculations February 2020 |
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| Deshapriya, A M M Nandula Total change: 48.80 | |   |
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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 |
| 1293 | 1117 | 2.00 | 4 | 0.84 | 40 | 33.60 | |
|  Mudalige, S M R S | | | 1014 | SRI | 1.00 | 1 | 0.36 | 40 | 14.40 | |  De Silva, R B V Nimsara | | | 1344 | SRI | 1.00 | 1 | 0.79 | 40 | 31.60 | | | Kithmal, P M Kalindhu | | | 1436 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Wijerathne, L M S D | | | 1379 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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 |
| 1450 | 1117 | 0.50 | 1 | 0.38 | 40 | 15.20 | |
| | Bentharaarachchi, Vinuga Ometh | | | 1450 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | |
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) | | |
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