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Individual Calculations June 2023 |
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| Jayathissa, J Y Total change: 64.40 | |   |
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| Sri Lanka National Youth Chess Championship 2023 - Under 14Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1270 | 1093 | 3.50 | 6 | 1.85 | 40 | 74.00 | |
|  Bimansa, D G Jayandi | | | 1343 | SRI | 1.00 | 1 | 0.81 | 40 | 32.40 | |  Dasanya, K K Hansali | | | 1236 | SRI | 1.00 | 1 | 0.69 | 40 | 27.60 | | | Rathnayake, R M Dulinma Hemalni | | | 1398 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Alwis, H Sandithi Kusalya | | | 1218 | SRI | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Rathnasooriya, Srimali Dhanushika | | | 1204 | SRI | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Alwis, Jenuki | | | 1219 | SRI | 0.50 | 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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1426 | 1091 | 0.00 | 2 | -0.24 | 40 | -9.60 | |
| | Rathnayake, R M Dulinma Hemalni | | | 1439 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Wettasinha, Vasanta | | | 1413 | 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) | | |
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