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Individual Calculations February 2018 |
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| Choksy, Anaisha Total change: 0.80 | |   |
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| Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 13 years Girls | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1119 | 1301 | 3.50 | 5 | -0.19 | 40 | -7.60 | |
|  Jayasinghe, Miyuni Thisanya | | | 1128 | SRI | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Edirisinghe, E P S | | | 1082 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | |  Jayasundara, Nisansa Hansali | | | 1145 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Jayasinghe, Thenugi Dilanya | | | 1133 | SRI | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Gehara, L G Dulni | | | 1108 | SRI | 1.00 | 1 | 0.25 | 40 | 10.00 | |
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) | | | | 22nd Battle of the Kings Inter School Team Chess Championship 2018 | Colombo | SRI | 2018-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1386 | 1301 | 1.00 | 2 | 0.21 | 40 | 8.40 | |
| | Jayasundara, J J M Y Adithya B | | | 1523 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Samarakkodi, Malini Samaya | | | 1248 | SRI | 1.00 | 1 | 0.43 | 40 | 17.20 | |
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) | | |
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