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Individual Calculations February 2020 |
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| Karunaratne, Rahel Chaanakya Total change: -53.60 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 13 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1047 | 1267 | 3.50 | 7 | -1.96 | 40 | -78.40 | |
|  Rashmitha, W G Kavindu | | | 1009 | SRI | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Vithanage, P N | | | 1006 | SRI | 1.00 | 1 | 0.18 | 40 | 7.20 | |  Herath, K Praveen Basara | | | 1094 | SRI | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Gunawardena, Anuth Methvin | | | 1083 | SRI | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Fernando, H Gayaru Dulsara | | | 1087 | SRI | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Rajasinghe, T S Thewnuja | | | 1029 | SRI | 0.00 | 1 | -0.80 | 40 | -32.00 | | | Karunarathna, D D C Adithya Kum | | | 1020 | SRI | 1.00 | 1 | 0.19 | 40 | 7.60 | |
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 |
| 1384 | 1264 | 2.50 | 5 | 0.62 | 40 | 24.80 | |
| | Weerakoon, D D P | | | 1622 | SRI | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Nirmalarajah, S | | | 1615 | SRI | 0.50 | 1 | 0.39 | 40 | 15.60 | | | Hettigoda, Dhanodya Budmina | | | 1072 | SRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Thenuwara, Rashmika | | | 1529 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Tharanga, T A | | | 1082 | 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) | | |
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