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Individual Calculations September 2017 |
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| Rathnayake, M A A H Total change: -4.20 | |   |
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| 4th Sri Lanka National Amateur International Rating Chess Championships 2017 | Colombo | SRI | 2017-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1637 | 1953 | 7.00 | 9 | -0.66 | 20 | -13.20 | |
|  Rodrigo, I Vihanga Mithsara | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Nethmina, S A Indura | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Deshappriya, D Kalindu | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Subasinghe, D D C H | | | 1576 | SRI | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Gunasekara, W A N Senpathi | | | 1620 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Kumarawadu, C S | | | 1573 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Jayawardana, Lasal | | | 1669 | SRI | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Fernando, J M Marlon P | | | 1789 | SRI | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Liyanage, Ranindu Dilshan | | | 1849 | SRI | 0.50 | 1 | -0.14 | 20 | -2.80 | | | * 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 Open International Rating Chess Championship 2017 | Kurunegala | SRI | 2017-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1736 | 1953 | 7.00 | 9 | 0.45 | 20 | 9.00 | |
| | Srilal, D A D T | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Abeysinghe, S M A M | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Madushanka, B W M Malith | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Koggala, W S T D | | | 1579 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Thejkumar, M. S. | m | | 2353 * | IND | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Theekshana, H G Denuwan | | | 1810 | SRI | 0.50 | 1 | -0.19 | 20 | -3.80 | | | Vithanage, I A | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Deshappriya, D Kalindu | | | 1553 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Vijayeendra, Y G | | | 2116 | IND | 0.50 | 1 | 0.22 | 20 | 4.40 | | | * 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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