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Individual Calculations June 2023 |
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| Nandasiri, Omiru Total change: 98.00 | |   |
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| Sri Lanka National Youth Chess Championship 2023 - Under 12Yrs Open | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1355 | 1130 | 1.50 | 4 | 0.56 | 40 | 22.40 | |
|  Labunahewage, Dulein Bimsath | | | 1271 | SRI | 0.50 | 1 | 0.19 | 40 | 7.60 | |  Basnayake, K B B M Dinuga Sanketh | | | 1213 | SRI | 0.50 | 1 | 0.11 | 40 | 4.40 | | | Nanayakkara, Sanuk | | | 1412 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Wickramasinghe, V W A Vinuda Vidm | | | 1524 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |
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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1438 | 1176 | 3.00 | 6 | 1.89 | 40 | 75.60 | |
| | Basnayake, B M Thesandu Aken | | | 1442 | SRI | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Ramanayake, Nemindi Linaya | | | 1465 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Ovitigala, Chenitha Mithvidu | | | 1456 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Lakshitha, H H Sasindu | | | 1506 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Rathnayake, R M Dulinma Hemalni | | | 1439 | SRI | 1.00 | 1 | 0.82 | 40 | 32.80 | | | Wimalasiri, Ransith Pabalu | | | 1318 | SRI | 0.50 | 1 | 0.19 | 40 | 7.60 | |
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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