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Individual Calculations October 2018 |
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| Karunaratne, Rahel Chaanakya Total change: 47.20 | |   |
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| 4th Negambo International Chess Festival 2018 | Negambo | SRI | 2018-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1499 | 1169 | 1.00 | 5 | 0.35 | 40 | 14.00 | |
|  Rabel, Chinthaka | | | 1569 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Askey, Roshell Nathasha | | | 1545 | SRI | 0.50 | 1 | 0.41 | 40 | 16.40 | |  Dahampriya, H K T Dewnethmie | | | 1392 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Rukmal, G Thasitha | | | 1507 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Kiriella, K G T S D | | | 1480 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | * 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) | | | | Sri Lanka Junior National Chess Championship 2018 | Colombo | SRI | 2018-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1278 | 1169 | 3.50 | 7 | 0.83 | 40 | 33.20 | |
| | Piyumantha, M Thisal Manjith | | | 1569 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Maithripala, W D P N | | | 1002 | SRI | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Ranaraja, Saumya I | | | 1125 | SRI | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Punchihewa, Geeneth Devmika | | | 1425 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Gunarathne, Senila Amaneth | c | | 1465 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Senevirathne, D C B K | | | 1082 | SRI | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Arunakirinathan, Aruthran | | | 1281 | 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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