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Individual Calculations November 2023 |
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| Welikumbura, D M Total change: 55.20 | |   |
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| Sri Lanka Junior National Chess Championship 2023 | Kandy | SRI | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1343 | 1073 | 0.00 | 1 | -0.17 | 40 | -6.80 | |
|  Uyanwaththa, W M S B | | | 1343 | SRI | 0.00 | 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) | | | | Kandy Open International Rating Chess Championships 2023 | Kandy | SRI | 2023-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1230 | 1073 | 3.00 | 5 | 1.55 | 40 | 62.00 | |
| | Dissanayake, K M S M | | | 1246 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | |  Pathmasiri, R D Isuru Saranga | | | 1289 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Perera , A A Senuth Thewsas | | | 1212 | SRI | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Wimalarathna, A U I D K | | | 1227 | SRI | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Samaraweera, R G D Bhagya | | | 1178 | SRI | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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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