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Individual Calculations August 2023 |
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| Namarathna, H K T I Total change: 6.40 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1308 | 1247 | 2.00 | 5 | -0.40 | 40 | -16.00 | |
|  Insilu, M A Abinu | | | 1077 | SRI | 1.00 | 1 | 0.28 | 40 | 11.20 | |  Gunaratne, Mojitha Sathsara | c | | 1802 | SRI | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Suraweera, Shanul Nethru | | | 1076 | SRI | 0.00 | 1 | -0.73 | 40 | -29.20 | | | Lakshitha, K Priyan | | | 1018 | SRI | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Gamage, Ovin Vidmal | | | 1568 | 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) | | | | Sri Lanka National Team Chess Championship 2023 - Women | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1267 | 1355 | 3.00 | 4 | 0.56 | 40 | 22.40 | |
| | Cooray, B S M T | | | 1234 | SRI | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Silva, U M Senaya Shavindi | | | 1085 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Sandeepani, M Tharushi | | | 1553 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Wijesiri, Dileka | | | 1197 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | |
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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