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Individual Calculations July 2015 |
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| Madushanka, Harsha Total change: 6.60 | |   |
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| 5th Dhamso International Chess Festival 2015 | Ambalangoda | SRI | 2015-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1692 | 1839 | 5.50 | 8 | 0.19 | 20 | 3.80 | |
|  De Silva, T Hansi Kavisha | | | 1439 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Sirimewan, K Hasareli | | | 1439 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Manuranga, D Lahiru | | | 1603 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Iddamalgoda, I D S | | | 1439 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mihiranga, K A Rajitha | | | 1541 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Tharindu, M W C | | | 1712 | SRI | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Galappaththi, Chinthaka Anuruddh | f | | 2130 | SRI | 0.50 | 1 | 0.35 | 20 | 7.00 | | | De Silva, Nirosh | f | | 2234 | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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) | | | | National B Chess Championship 2015 | Colombo | SRI | 2015-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1842 | 1839 | 4.50 | 9 | 0.14 | 20 | 2.80 | |
| | Dissanayake, Kamesh Janaja | | | 1474 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Kurukulasuriya, Prasanna | f | | 2102 | SRI | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Weerakoon, R K B | | | 1535 | SRI | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Thilakarathne, G M H | c | | 1950 | SRI | 0.00 | 1 | -0.35 | 20 | -7.00 | | | De Silva, Elath Mathanga | | | 1962 | SRI | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Nanayakkara, J A G Ganganath | | | 1662 | SRI | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Jayasundara, P K U M | c | | 2031 | SRI | 1.00 | 1 | 0.75 | 20 | 15.00 | | | Gunaratne, Mojitha Sathsara | c | | 1899 | SRI | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Lamawansa, Yasas | | | 1960 | SRI | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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) | | |
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