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Individual Calculations February 2019 |
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| Weerawardana, Oneli Vihanga Total change: 7.60 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 11 years Girls | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1097 | 1177 | 1.50 | 3 | -0.33 | 40 | -13.20 | |
|  Akuratiya, A G Javindi Avarjana | | | 1129 | SRI | 0.00 | 1 | -0.57 | 40 | -22.80 | |  Gamage, Desandhi Dhihansa | | | 1136 | SRI | 0.50 | 1 | -0.06 | 40 | -2.40 | | | Liyanage, R L Mihini B | | wc | 1025 | SRI | 1.00 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | 7th Kaluthara Chess Festival 2019 | Kaluthara | SRI | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1422 | 1186 | 1.50 | 4 | 0.52 | 40 | 20.80 | |
| | Jayarathne, M N G | | | 1586 * | SRI | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Kithmal, P M Kalindhu | | | 1508 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Jayawardana, Chenuka Nethvidu | | | 1518 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Randunu, S S M T | | | 1077 | SRI | 0.50 | 1 | -0.15 | 40 | -6.00 | | | * 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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