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Individual Calculations February 2020 |
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| Gamarathne, Oneth Total change: -62.40 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 15 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1206 | 1409 | 2.00 | 4 | -0.87 | 40 | -34.80 | |
|  Morathenna, M M Helitha | | | 1020 | SRI | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Silva, M K Teshan Pasandul | | | 1037 | SRI | 0.50 | 1 | -0.40 | 40 | -16.00 | | | Thenuwara, Rashmika | | | 1541 | SRI | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Basnayake, Kaushal Chaturanga | | | 1224 | SRI | 0.50 | 1 | -0.24 | 40 | -9.60 | |
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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1263 | 1359 | 3.00 | 6 | -0.69 | 40 | -27.60 | |
| | Nanayakkara, N W P K W | | | 1028 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Lasitha, Subash | c | | 1677 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Wickramasinghe, V W A Vinuda Vidm | | | 1081 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Deshappriya, D Kalindu | | | 1545 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Thennakoon, Disara | | | 1135 | SRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Gamage, B K Sayumi Hasithma | | | 1113 | SRI | 0.50 | 1 | -0.31 | 40 | -12.40 | |
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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