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Individual Calculations February 2020 |
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| Judedorison, G Total change: 47.40 | |   |
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| Sri Lanka National Amateur Chess Championship 2019 | Colombo | SRI | 2019-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1471 | 1472 | 4.50 | 7 | 0.97 | 20 | 19.40 | |
|  Pinnagoda, P G Anuhas Suradunu | | | 1191 | SRI | 0.50 | 1 | -0.34 | 20 | -6.80 | |  Sandaruwan, M G Ravindu | | | 1389 | SRI | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Ahangama, Senuka Aswin | | | 1473 | SRI | 1.00 | 1 | 0.50 | 20 | 10.00 | | | Sivathanujan, S | | | 1784 | SRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Chandula, E D S | | | 1515 | SRI | 0.00 | 1 | -0.44 | 20 | -8.80 | | | Karunarathne, D D W Gamini | | | 1220 | SRI | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Galagamaarachchi, A S | | | 1725 | SRI | 1.00 | 1 | 0.81 | 20 | 16.20 | |
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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1364 | 1477 | 6.50 | 8 | 1.40 | 20 | 28.00 | |
| | Ranasinghe, R A Manul Lakvindu | | | 1077 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Gunawardana, Indrakeela K D Udde | | | 1202 | SRI | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Dabarera, G W D M | | | 1821 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Uyanwaththa, W M S B | | | 1216 | SRI | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Subaweera, Senuka Sendinu | | | 1119 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Dissanayake, D M S L | | | 1291 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Sandaruwan, M G Ravindu | | | 1370 | SRI | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Sivathanujan, S | | | 1812 | SRI | 1.00 | 1 | 0.88 | 20 | 17.60 | | | * 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) | | |
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