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Individual Calculations October 2019 |
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| Gunarathna, D A Viraj Darshana Total change: 36.80 | |   |
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| 10th Buddhi International Rating Chess Championship 2019 | Gampaha | SRI | 2019-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1318 | 1420 | 4.50 | 7 | 0.09 | 20 | 1.80 | |
|  Perera, K S D | | | 1135 | SRI | 0.50 | 1 | -0.34 | 20 | -6.80 | |  Sooriyapperuma, S V P P | | | 1084 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Bakmeewewa, L C | | | 1138 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Silva, Kevin Ranidu | c | | 1820 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Bandara, T M Himath Indeewara | | | 1233 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Samaraweera, Dimuth Indeepa | | | 1589 | SRI | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Kumarasiri, D K N | | | 1224 | SRI | 1.00 | 1 | 0.25 | 20 | 5.00 | | | * 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) | | | | National Sports Festival Chess Championship 2019 - Men | Badulla | SRI | 2019-09-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1607 | 1420 | 3.50 | 6 | 1.75 | 20 | 35.00 | |
| | Jayasinghe, Keeth M S | | | 1813 | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Jayaweera, C L | | | 1820 * | SRI | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Uthayatharsan, Ramachandran | | | 1258 | SRI | 0.50 | 1 | -0.21 | 20 | -4.20 | | | Rukmal, G Thasitha | | | 1495 | SRI | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Suriyabandara, S M D | | | 1664 | SRI | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Manuranga, D Lahiru | | | 1589 | SRI | 0.50 | 1 | 0.22 | 20 | 4.40 | | | * 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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