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Individual Calculations September 2015 |
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| Siriwardena, G T D Total change: 76.40 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1574 | 1534 | 4.00 | 7 | 0.82 | 40 | 32.80 | |
|  Weerasinghe, Chamath | | | 1818 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | |  Randil, Lakshitha | | | 1887 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Liyanagama, Pasandul | | | 1134 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Lamawansa, Yasas | | | 1934 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Weerasinghe, W P Dakshaka Deshan | | | 1202 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Siriwardena, R I Pasan Bhanuka | | | 1699 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Jayawardana, Lasal | | | 1342 | SRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | * 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) | | | | 6th Kandy Open International Rating Chess Championship | Kandy | SRI | 2015-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1514 | 1534 | 5.50 | 8 | 1.37 | 40 | 54.80 | |
| | Pathmanathan, T | | | 1134 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Ranasinghe, R Y G | | | 1299 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Wijesooriya, Rasindu | | | 1262 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Thawalampola, Banuka Neranjan | | | 1713 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Liyanapathirana, Pasan Vindula | | | 1877 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Bandara, Dhanushka | | | 1837 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Rathnasiri, R S | | | 1194 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Lasitha, Subash | c | | 1793 | SRI | 0.50 | 1 | 0.32 | 40 | 12.80 | | | * 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 Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1464 | 1534 | 5.00 | 9 | -0.28 | 40 | -11.20 | |
| | Weerasinghe, Gimshan | | | 1141 | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Randil, Lakshitha | | | 1887 | SRI | 0.50 | 1 | 0.39 | 40 | 15.60 | | | Perera, U I Himal | | | 1320 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Lasitha, Subash | c | | 1793 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Jayawickrama, U W R K | | | 1289 | SRI | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Edirisinghe, S Thulnith | | | 1275 | SRI | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Devnaka, Chamin | | | 1178 | SRI | 1.00 | 1 | 0.11 | 40 | 4.40 | | | De Silva, Osheen | | | 1909 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Wijesuriya, G P Y | | | 1384 | SRI | 0.00 | 1 | -0.70 | 40 | -28.00 | |
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) | | |
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