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Individual Calculations September 2019 |
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| De Silva, J I Ajantha Total change: -29.60 | |   |
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| 4th SSC Open International Rating chess Championship 2019 | Matara | SRI | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1315 | 1387 | 4.50 | 8 | -0.17 | 20 | -3.40 | |
|  Rupasinghe, M H Gayumika | | | 1103 | SRI | 0.50 | 1 | -0.34 | 20 | -6.80 | |  Warushvithana, Senuri Shehana Ku | | | 1063 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Madusanka, L D P | | | 1646 | SRI | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Ruwantha, L G Irindu | | | 1048 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Sethiya , A Vinuga | | | 1179 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Dharmakeerthi, G K Pasindu Nims | | | 1660 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Wijesooriya, Senithu Minath | | | 1160 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Abeywickrama, Sachintha | | | 1659 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | |
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) | | | | 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1166 | 1387 | 4.00 | 7 | -1.31 | 20 | -26.20 | |
| | Vidharshana, T H Oshid Warshaka | | | 1024 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Ranasinghe, R Hirusha Dilanka | | | 1092 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | De Silva, D M Nilanga | | | 1612 | SRI | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Abhaywardhana, Nirma Pahasara | | | 1068 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Nawantha, Dulshan | | | 1125 | SRI | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Sooriyapperuma, S V P P | | | 1092 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Gunawardana, Indrakeela K D Udde | | | 1151 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | |
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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