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Individual Calculations November 2022 |
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| Amarathunga, Piyumi Uthpala Total change: 25.60 | |   |
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| Sri Lanka Junior Girls National Chess Championship 2022 | Kandy | SRI | 2022-09-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1220 | 1139 | 2.00 | 4 | 0.36 | 40 | 14.40 | |
|  Premanath, Prasansa | | | 1480 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Kularathne, Induni Ushadi | | | 1028 | SRI | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Rajakaruna, Nuhansa | | | 1190 | SRI | 1.00 | 1 | 0.57 | 40 | 22.80 | |  Dange, Gehansa Ranumi | | | 1182 | SRI | 0.50 | 1 | 0.06 | 40 | 2.40 | |
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 Wome's Amateur Chess Championship 2022 | Colombo | SRI | 2022-10-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1214 | 1139 | 1.50 | 3 | 0.28 | 40 | 11.20 | |
| | Wickramarathne, P W G Gaveshi | | | 1357 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Fernando, Thimansa Amashi | | | 1024 | SRI | 0.00 | 1 | -0.66 | 40 | -26.40 | | | Mulleriyawa, Nethumli Rashmitha | | | 1260 | SRI | 1.00 | 1 | 0.66 | 40 | 26.40 | |
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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