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Individual Calculations October 2013 |
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| Willathgamuwa, Rowan Total change: -35.25 | |   |
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| 2013 Rooty Hill Amateur Championship U2200 | Sydney | AUS | 2013-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1776 | 1699 | 1.00 | 4 | -0.68 | 15 | -10.20 | |
|  Mallari, Donato | | | 2021 | AUS | 0.00 | 1 | -0.13 | 15 | -1.95 | |  Stipic, Stephen | | | 1522 | AUS | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Cabilin, Jeff | | | 1952 | AUS | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Steinitz, Steven | | | 1607 | AUS | 0.00 | 1 | -0.63 | 15 | -9.45 | |
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) | | | | 9th Asian Schools Chess Championship 2013 Under 11 Open | Hikkaduwa | SRI | 2013-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1442 | 1734 | 2.50 | 5 | -1.67 | 15 | -25.05 | |
| | Pallie, Tuan Ehshan | | | 1334 * | SRI | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Piyumantha, M Sasith Nipun | | | 1556 | SRI | 0.00 | 1 | -0.73 | 15 | -10.95 | | | Gunawardena, I M P T | | | 1460 | SRI | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Theekshana, H.g. Denuwan | | | 1527 | SRI | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Seneviratne, P A H | | | 1334 * | SRI | 0.50 | 1 | -0.42 | 15 | -6.30 | | | * 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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