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Individual Calculations March 2015 |
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| Perera, D G D Y Adeekshana Total change: 15.20 | |   |
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| Colombo Chess Festival 2015 | Colombo | SRI | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1501 | 1153 | 0.00 | 2 | -0.23 | 40 | -9.20 | |
|  Gamage, H Charanga Jithmal | | | 1553 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Siriwardena, G T D | | | 1448 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | * 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) | | | | Sri Lanka Major Division Chess Championship 2015 Colombo | Colombo | SRI | 2015-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1374 | 1127 | 2.00 | 7 | 0.61 | 40 | 24.40 | |
| | Kodikara, K K M A | | | 1448 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | |  Thalagune, Y V | | | 1340 | SRI | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Withanage, Lakindu | | | 1476 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | De Zoysa, Tharusha Nilakshana | | | 1323 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Udayapriya, Yeman | | | 1336 | SRI | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Yasanga, W C M Kasun | | | 1317 | SRI | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Jayawardana, Lasal | | | 1378 | SRI | 0.50 | 1 | 0.31 | 40 | 12.40 | |
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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