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Individual Calculations February 2019 |
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| Gamage, Sanula Udan Total change: 4.80 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 13 years | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1205 | 1058 | 2.00 | 5 | 0.47 | 40 | 18.80 | |
|  Bentharaarachchi, Vinuga Ometh | | | 1302 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | |  Thanuja, Dewsara | | | 1168 | SRI | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Perera, Isara Ranmeth | | | 1229 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Attanayaka, Chamath | | | 1168 | SRI | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Akmeemana, I U | | | 1157 | SRI | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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 |
| 1398 | 1054 | 0.00 | 3 | -0.35 | 40 | -14.00 | |
| | Abhimanyu, Iraja | | | 1454 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kanakarathne, S Nevinka De Silva | | | 1396 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Neranja, Gihan | | | 1345 | SRI | 0.00 | 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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