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Individual Calculations February 2020 |
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| Gayanuka, B D Omira Total change: 18.40 | |   |
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| Sri Lanka National Amateur Chess Championship 2019 | Colombo | SRI | 2019-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1468 | 1241 | 2.00 | 5 | 0.73 | 40 | 29.20 | |
|  Sivathanujan, S | | | 1641 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Iddagoda, Nikitha | | | 1632 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Atulugamage, Saniru Lohan | | | 1029 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Tennakoon, I L K | | | 1523 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Chandula, E D S | | | 1515 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | * 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) | | | | Sri Lanka National Youth Chess Championship 2019 - Under 13 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1056 | 1241 | 4.50 | 7 | -0.69 | 40 | -27.60 | |
| | Welege, Dinuka Sandaruwan | | | 1003 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Panditha, Thiviru Rashmith | | | 1011 | SRI | 0.00 | 1 | -0.79 | 40 | -31.60 | | | Liyanage, R L Jayana S | | | 1054 | SRI | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Yethmin, W J Methum | | | 1081 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Gunawardena, Anuth Methvin | | | 1083 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Fernando, H Gayaru Dulsara | | | 1087 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Dissanayake, E M T N | | | 1070 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | |
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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1469 | 1256 | 1.50 | 4 | 0.42 | 40 | 16.80 | |
| | Nirmalarajah, S | | | 1615 | SRI | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Weerakoon, D D P | | | 1622 | SRI | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Samaraweera, Dimuth Indeepa | | | 1556 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Tharanga, T A | | | 1082 | SRI | 0.50 | 1 | -0.23 | 40 | -9.20 | |
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) | | |
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