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Individual Calculations June 2023 |
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| Weerawardane, Romesh Total change: -60.00 | |   |
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| Sri Lanka National Chess Championship 2023 | Colombo | SRI | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1924 | 6.50 | 13 | -1.49 | 20 | -29.80 | |
|  Morais, Sanithu Leander Pamudith | | | 1572 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | |  Liyanage, Pesandu Rashmitha | | | 1734 | SRI | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Alahakoon, Isuru | f | | 1875 | SRI | 0.00 | 1 | -0.57 | 20 | -11.40 | | | Weerasekara, Dishal Nimsara | | | 1651 | SRI | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Liyanage, Ranindu Dilshan | f | | 2342 | SRI | 0.50 | 1 | 0.43 | 20 | 8.60 | | | Dabarera, G W D M | | | 1956 | SRI | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Samaranayake, K P R N | | | 1915 | SRI | 0.00 | 1 | -0.51 | 20 | -10.20 | | | De Silva, L M S T | m | | 2452 | SRI | 0.00 | 1 | -0.03 | 20 | -0.60 | | | Jayaweera, Y | | | 1718 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Kaluarachchi, Achinthya Shamen | | | 1884 | SRI | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Senevirathne, S D B K | | | 1710 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Samaranayake, Pamok Methdinu | | | 1572 | SRI | 0.50 | 1 | -0.39 | 20 | -7.80 | | | Gunasekara, W A N Senpathi | | | 1558 | 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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1507 | 1896 | 5.50 | 8 | -1.51 | 20 | -30.20 | |
| | Mayadunna, D Vihan Sanija | | | 1496 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Chamathka, W A Chethani | | | 1335 | SRI | 1.00 | 1 | 0.02 | 20 | 0.40 | | | Gunawardhana, Devindya Oshini | | | 1534 | SRI | 0.00 | 1 | -0.90 | 20 | -18.00 | | | Pathirage, Yukitha Kenula Perera | | | 1277 | SRI | 1.00 | 1 | 0.02 | 20 | 0.40 | | | Wijeratne, Rehan Nawantha | | | 1428 | SRI | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Ramanayake, Nemindi Linaya | | | 1465 | SRI | 1.00 | 1 | 0.07 | 20 | 1.40 | | | De Silva, Osheen | | | 1676 | SRI | 0.50 | 1 | -0.28 | 20 | -5.60 | | | Kaluarachchi, Achinthya Shamen | | | 1844 | SRI | 0.00 | 1 | -0.57 | 20 | -11.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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