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Individual Calculations February 2019 |
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| Viduranga, Oshadha Total change: -8.00 | |   |
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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 |
| 1298 | 1062 | 1.50 | 5 | 0.42 | 40 | 16.80 | |
|  Jayawardana, Chenuka Nethvidu | | | 1456 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rangajeewa, M G Sachithra Sandar | | | 1246 | SRI | 1.00 | 1 | 0.74 | 40 | 29.60 | |  Nanayakkara, P N J | | | 1325 | SRI | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Sanuda, Rehan | | | 1180 | SRI | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Weththawa, B G E D | | | 1285 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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 |
| 1367 | 1057 | 0.00 | 4 | -0.62 | 40 | -24.80 | |
| | Chandula, E D S | | | 1457 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Alwis, B H A Rasidu | | | 1346 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Nisansala, P K T | | | 1457 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Liyanage, Kusalvin | | | 1208 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | | | * 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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