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Individual Calculations November 2015 |
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| De Silva, Osheen Total change: -6.00 | |   |
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| Buddhi International Rating Chess Championship 2015 | Gampaha | SRI | 2015-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1710 | 1902 | 7.00 | 9 | 0.59 | 20 | 11.80 | |
|  Thanuja, Dewsara | | | 1502 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Savinda, Yasas | | | 1502 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Gunarathna, D A Viraj Darshana | | | 1627 | SRI | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Gunaratne, Manisha Suchini | | wf | 1665 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Madushan, K D Tharusha | | | 1687 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Lakmal, M A C | | | 1502 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Subasinghe, K R V R | | | 1951 | SRI | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Arjun, K | | | 2081 | IND | 1.00 | 1 | 0.73 | 20 | 14.60 | | | Lamahewa, C | | | 1869 | SRI | 0.00 | 1 | -0.55 | 20 | -11.00 | | | * 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) | | | | Negombo Chess Festival 2015 | Negombo | SRI | 2015-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1612 | 1887 | 5.50 | 8 | -0.89 | 20 | -17.80 | |
| | Illankoon, I M W P | | | 1487 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Wanigarathne, K A N | | | 1487 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Sandeepa, Haputhanthrige N Akshi | | | 1616 | SRI | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Udara, D A Yasas | | | 1487 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Nanayakkara, J A G Ganganath | | | 1563 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Galappaththi, Chinthaka Anuruddh | f | | 2102 | SRI | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Katugampola, A H | | | 1487 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Gunaratne, Manisha Suchini | | wf | 1665 | SRI | 0.50 | 1 | -0.28 | 20 | -5.60 | | | * 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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