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Individual Calculations May 2012 |
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| Gamage, Chathulanka Total change: 3.90 | |   |
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| Sri Lanka Major Division Chess Championship 2012 Colombo | Colombo | SRI | 2012-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1543 | 1650 | 2.50 | 4 | -0.06 | 30 | -1.80 | |
|  Nanayakkara, J A K Saranath | | | 1403 | SRI | 1.00 | 1 | 0.19 | 30 | 5.70 | |  Priyankara, Chamil | | | 1926 | SRI | 0.50 | 1 | 0.33 | 30 | 9.90 | | | Punchihewa, Kokila Prageeth | | | 1422 | SRI | 0.50 | 1 | -0.29 | 30 | -8.70 | | | Lahiru, N P G Sithija | | | 1419 | SRI | 0.50 | 1 | -0.29 | 30 | -8.70 | |
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 Youth Chess Championship 2012 Under 14 Open | Colombo | SRI | 2012-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1523 | 1645 | 3.50 | 5 | 0.19 | 30 | 5.70 | |
| | Hasanga, K M Harith | | | 1534 | SRI | 0.50 | 1 | -0.15 | 30 | -4.50 | | | Karunarathna, Chathapa Indawara | | | 1537 | SRI | 0.50 | 1 | -0.15 | 30 | -4.50 | | | Kalansooriya, C S | | | 1465 | SRI | 1.00 | 1 | 0.26 | 30 | 7.80 | | | Naotunna, Dineth Nimnaka | | | 1647 | SRI | 0.50 | 1 | 0.00 | 30 | 0.00 | | | Malinda, S K A D J | | | 1434 | SRI | 1.00 | 1 | 0.23 | 30 | 6.90 | |
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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