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Individual Calculations February 2020 |
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| Piyumantha, M Thisal Manjith Total change: 6.80 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 15 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1485 | 1697 | 5.50 | 7 | 0.35 | 40 | 14.00 | |
|  Hafeel, Q M | | | 1297 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Hapugala, H A D K | | | 1297 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Arthigan, J | | | 1389 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Liyanage, Kusalvin | | | 1378 | SRI | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Kodithuwakku, Lisara | | | 1718 | SRI | 0.50 | 1 | 0.03 | 40 | 1.20 | | | Thenuka, Kuruwita Gamalathge Kin | | | 1762 | SRI | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Withanarachchi, W A P I | | | 1551 | SRI | 0.50 | 1 | -0.20 | 40 | -8.00 | | | * 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) | | | | Battle of the Kings - All Island Schools Team Chess Championship 2020 | Colombo | SRI | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1793 | 1767 | 2.00 | 3 | 0.54 | 40 | 21.60 | |
| | Perera, Tharusha Salinda | | | 1461 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Dahanayake, Isara Banidu | c | | 1750 | SRI | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Doluweera, Minul Sanjula | f | | 2167 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | * 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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1391 | 1767 | 2.00 | 3 | -0.72 | 40 | -28.80 | |
| | Senevirathne, U S W | | | 1367 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Adansooriya, B A | | | 1367 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Siriwardane, A L | | | 1438 | SRI | 0.00 | 1 | -0.88 | 40 | -35.20 | | | * 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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