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Individual Calculations February 2019 |
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| Alwis, Randeepa Total change: 101.60 | |   |
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| Sri Lanka National Youth Championship 2018 - Under 15 | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1386 | 1138 | 2.50 | 6 | 1.33 | 40 | 53.20 | |
|  Pelagewatta , T P | | | 1427 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Weerasinghe, W Yasiru | | | 1343 | SRI | 1.00 | 1 | 0.76 | 40 | 30.40 | |  Weerasinghe, Isum | | | 1434 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Bandara, W M Nadil Dulshen | | | 1339 | SRI | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Yasanga, W C M Kasun | | | 1395 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Maheeshan, Gayan | | | 1375 | SRI | 0.50 | 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 |
| 1466 | 1138 | 2.00 | 6 | 1.21 | 40 | 48.40 | |
| | Liyanapathirana, Pasan Vindula | | | 1538 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Sahasra, A P Sasindu | | | 1361 | SRI | 1.00 | 1 | 0.78 | 40 | 31.20 | | | De Silva, Shelani | | | 1538 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Bandara, S M Sanjaya D | | | 1461 | SRI | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Perera, D Upashan L | | | 1426 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Chandula, E D S | | | 1473 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | * 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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