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Individual Calculations August 2023 |
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| Anparasan, T Total change: 29.00 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1292 | 1384 | 5.50 | 8 | 0.60 | 20 | 12.00 | |
|  Lakshitha, K Priyan | | | 1018 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Pitigala, Chandra Sudarman S. | | | 1917 | SRI | 0.00 | 1 | -0.03 | 20 | -0.60 | |  Perera, G G U Nawathma | | | 1017 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Alwis, H R C Yuthmika | | | 1186 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Obeysekara, T A Sajith Chathuran | | | 1684 | SRI | 0.50 | 1 | 0.35 | 20 | 7.00 | | | Sahasra, A P Sasindu | | | 1495 | SRI | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Jayasinghe, K A J Hasanidu Anuhas | | | 1007 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Edirisinghe, E M Shanulya Deenu T | | | 1010 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | |
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 | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1368 | 1398 | 3.00 | 4 | 0.85 | 20 | 17.00 | |
| | Tennakoon, Lisara Samadhith | | | 1453 | SRI | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Gnanaseelan, Jude Dorison | | | 1515 | SRI | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Amarasinghe, Senith Ranmika | | | 1291 | SRI | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Madurawala, M G D S Shanuka | | | 1212 | SRI | 1.00 | 1 | 0.26 | 20 | 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) | | |
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