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Individual Calculations December 2017 |
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| Weerakoon, Naveen Chathuranga Total change: -11.20 | |   |
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| Colombo District Youth Chess Championship - 2017 Under 15 Boys (2002 - 2003) | Colombo | SRI | 2017-10-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1072 | 1155 | 2.00 | 3 | 0.15 | 40 | 6.00 | |
|  Bandara, M H Nemitha | | | 1099 | SRI | 1.00 | 1 | 0.42 | 40 | 16.80 | |  Rashmitha, G Malshan Chamika | | | 1033 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Suraweera, M C H Jananath | | | 1084 | SRI | 0.00 | 1 | -0.60 | 40 | -24.00 | |
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 Junior National Chess Championship 2017 | Colombo | SRI | 2017-11-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1402 | 1155 | 0.00 | 2 | -0.43 | 40 | -17.20 | |
| | Dissanayake, Manusha Dinuk | | | 1520 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Dissanayake, Praveen Manodya | | | 1283 | 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) | | |
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