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Individual Calculations February 2019 |
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| Hettiarachchi, D W K Total change: -9.20 | |   |
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| Sri Lanka National Youth Championship 2018 - Under 11 | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1259 | 1142 | 1.00 | 2 | 0.24 | 40 | 9.60 | |
|  Waduge, Thathika | | | 1029 | SRI | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Dissanayaka, Yadeesha Rashmane | c | | 1488 | SRI | 0.50 | 1 | 0.39 | 40 | 15.60 | |
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) | | | | 7th Kaluthara Chess Festival 2019 | Kaluthara | SRI | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1435 | 1134 | 0.00 | 3 | -0.47 | 40 | -18.80 | |
| | Lamahewa, S | | | 1534 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Alwis, B H A Rasidu | | | 1346 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Tennakoon, Lisara Samadhith | | | 1424 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | * 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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