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Individual Calculations February 2019 |
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| Salgado, M V Induwara Total change: -12.80 | |   |
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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 |
| 1084 | 1019 | 0.50 | 3 | -0.74 | 40 | -29.60 | |
|  Abrar, Taariq Isham | | | 1056 | SRI | 0.50 | 1 | 0.05 | 40 | 2.00 | |  Abeykoon, M C H | | | 1048 | SRI | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Sethiya , A Vinuga | | | 1147 | SRI | 0.00 | 1 | -0.33 | 40 | -13.20 | |
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 |
| 1336 | 1019 | 1.00 | 4 | 0.42 | 40 | 16.80 | |
| | Pathmasiri, R D Isuru Saranga | | | 1419 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Perera, D Upashan L | | | 1419 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Punchihewa, Kokila Prageeth | | | 1322 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Samaraweera, Sanith Jithnuka | | | 1185 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | | | * 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) | | |
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