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Individual Calculations September 2017 |
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| Jayanka, L P P R Total change: 23.60 | |   |
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| 4th Sri Lanka National Amateur International Rating Chess Championships 2017 | Colombo | SRI | 2017-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1580 | 1426 | 3.50 | 7 | 1.22 | 20 | 24.40 | |
|  Madushan, K D Tharusha | | | 1756 | SRI | 0.50 | 1 | 0.38 | 20 | 7.60 | |  Pallie, Tuan Ehshan | | | 1718 | SRI | 0.50 | 1 | 0.35 | 20 | 7.00 | | | Kulathilake, S M M P | | | 1220 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Lasitha, Subash | c | | 1779 | SRI | 0.50 | 1 | 0.39 | 20 | 7.80 | | | Danushka, M A N | | | 1826 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Samuel, Anthony J | | | 1026 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Jayaweera, Y | | | 1738 | SRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 Open International Rating Chess Championship 2017 | Kurunegala | SRI | 2017-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1327 | 1426 | 5.00 | 8 | -0.04 | 20 | -0.80 | |
| | Hiyarapitiya, D S | | | 1160 | SRI | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Indrajith, J A K N T | | | 1172 | SRI | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Kiriella, K G T S D | | | 1180 | SRI | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Liyanapathirana, Kasun | | | 1756 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Premanath, Prasansa | | | 1186 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Dabarera, G W D M | | | 1730 | SRI | 0.50 | 1 | 0.36 | 20 | 7.20 | | | De Silva, M Manindu Chanthil | | | 1228 | SRI | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Thilakarathne, H M G G | | | 1207 | SRI | 1.00 | 1 | 0.22 | 20 | 4.40 | |
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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