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Rapid:
Individual Calculations October 2017 |
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| De Silva, L M S T Total change: 1.80 | |   |
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| 2nd West Asian Youth Rapid Chess Championship 2017 - Under 12 Open | Waskaduwa | SRI | 2017-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1443 | 1531 | 4.50 | 7 | 0.24 | 20 | 4.80 | |
|  Nabil Nazar, Mohamed | | | 1239 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | |  Indusara, M G Janitha | | | 1297 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Withanarachchi, W A P I | | | 1382 | SRI | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Piyumantha, M Thisal Manjith | | | 1584 | SRI | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Silva, Kevin Ranidu | c | | 1510 | SRI | 0.00 | 1 | -0.53 | 20 | -10.60 | | | Dahanayake, Isara Banidu | | | 1593 | SRI | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Kodithuwakku, Lisara | | | 1495 | SRI | 0.00 | 1 | -0.55 | 20 | -11.00 | |
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) | | | | Inaugural Sri Lanka National Rapid Chess Championship 2017 | Colomno | SRI | 2017-09-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1567 | 1531 | 3.50 | 8 | -0.15 | 20 | -3.00 | |
| | Wettasinha, Vasanta | | | 1740 | SRI | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Prabajith, P H Asela | | | 1762 | SRI | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Sooriyarachchi, Isuru Mdushan | | | 1516 | SRI | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Priyankara, Chamil | | | 1931 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Liyanage, Ranindu Dilshan | | | 1496 | SRI | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Raheem, T Akeel | | | 1389 | SRI | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Weerasinghe, C C | | | 1568 | SRI | 0.00 | 1 | -0.45 | 20 | -9.00 | | | Perera, G Poorna Udara Dhananj | | | 1131 * | SRI | 0.00 | 1 | -0.92 | 20 | -18.40 | | | * 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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