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Individual Calculations September 2018 |
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| Herath, H M S S A Total change: 43.60 | |   |
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| 7th Mercantile and Government Service Chess Championship 2018 | Colombo | SRI | 2018-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1712 | 1452 | 3.50 | 5 | 2.57 | 20 | 51.40 | |
|  Deshapriya, S R | | | 1784 | SRI | 1.00 | 1 | 0.88 | 20 | 17.60 | |  Sooriarachchi, Nethaji Tharinda | | | 1667 | SRI | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Fonseka, C K D | | | 1714 | SRI | 0.50 | 1 | 0.32 | 20 | 6.40 | | | Wiratunga, Ishan | | | 1751 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Rajapaksha, A K | | | 1644 | SRI | 1.00 | 1 | 0.75 | 20 | 15.00 | |
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) | | | | Kandy Open International Rating Chess Championship 2018 | Kandy | SRI | 2018-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1303 | 1452 | 5.00 | 8 | -0.39 | 20 | -7.80 | |
| | Arthigan, J | | | 1096 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Jayawardana, Lasal | | | 1829 | SRI | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Bhavanan, J | | | 1121 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Mannaperuma, M M Pamudu Thamara | | | 1173 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Lasitha, Subash | c | | 1745 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Rathnayake, R M Dinithi Panchali | | wc | 1191 | SRI | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Dassanayaka, D M S P | | | 1079 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Wiijesinghe , Pasan Januda | | | 1190 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | |
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) | | |
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