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Individual Calculations February 2019 |
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| Rajasinghe, T S Thewnuja Total change: -6.80 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 13 years | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1185 | 1036 | 1.00 | 4 | -0.21 | 40 | -8.40 | |
|  Tennakoon, Lisara Samadhith | | | 1256 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Arthigan, J | | | 1176 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |  Piyarthne, Movindu Lushan | | | 1154 | SRI | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Dissanayaka, Anupama | | | 1152 | SRI | 1.00 | 1 | 0.66 | 40 | 26.40 | |
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 |
| 1387 | 1036 | 0.50 | 4 | 0.04 | 40 | 1.60 | |
| | Sachithra, Rukmal | | | 1436 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Sanudula, K M Dahamdi | | wc | 1375 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Sanali, W A Nathasha | | | 1436 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Katugampola, A H | | | 1302 | SRI | 0.50 | 1 | 0.32 | 40 | 12.80 | | | * 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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