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Individual Calculations February 2019 |
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| Padukka, P V Gayuru Hansana Total change: 51.20 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 13 years | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1309 | 1127 | 3.50 | 7 | 1.53 | 40 | 61.20 | |
|  Tishor, S | | | 1269 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |  Nidhushek, P | | | 1003 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Wijesekara, Bihandu Sanhinda | | | 1465 | SRI | 1.00 | 1 | 0.88 | 40 | 35.20 | | | Bandara, W K S V | | | 1288 | SRI | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Indusara, M G Janitha | | | 1429 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Dalawella, Sanuka Chandul | | | 1361 | SRI | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Wiratunga, Jenith | | | 1349 | ENG | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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) | | | | 7th Kaluthara Chess Festival 2019 | Kaluthara | SRI | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1285 | 1127 | 1.00 | 4 | -0.25 | 40 | -10.00 | |
| | Vithanage, H Yasindu Rashmika | | | 1351 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Akasha, J P Vihanga | | | 1440 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Karunarathna, Nuthara Dulandee | | | 1002 | SRI | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Alwis, B H A Rasidu | | | 1346 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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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