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Individual Calculations September 2015 |
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| Kumarawadu, C S Total change: -24.20 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1391 | 1581 | 5.00 | 8 | -0.80 | 20 | -16.00 | |
|  Jayasekara, J A Hesara Nadil | | | 1181 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  De Silva, Osheen | | | 1909 | SRI | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Fonseka, Rashan | | | 1278 | SRI | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Kalinga, Kalindu Kusalwin | | | 1348 | SRI | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Jayawardana, Lasal | | | 1342 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Jayatissa, Chanuth Devnaka | | | 1211 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Wijesinghe, N L C Dojitha | | | 1370 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Nandika, Ruwan | | | 1486 | SRI | 0.50 | 1 | -0.13 | 20 | -2.60 | | | * 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 |
| 1433 | 1581 | 5.50 | 8 | 0.15 | 20 | 3.00 | |
| | Marapana, Sanupa Bimsath | | | 1181 * | SRI | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Samarakoon, S M S S | | | 1181 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | De Silva, L M S T | | | 1300 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Lakshmanrao, D. | | | 1939 | IND | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Iddamalgoda, I D S | | | 1305 | SRI | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Wijetunga, Isitha Uvishka | | | 1404 | SRI | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Samaranayake, K P R N | | | 1786 | SRI | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Nadishyani, A A Kaushalya | | | 1369 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | * 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 |
| 1403 | 1581 | 5.00 | 8 | -0.56 | 20 | -11.20 | |
| | Nantharupan, S | | | 1181 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Weerasinghe, Chamath | | | 1818 | SRI | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Boricha, Yohan | | | 1271 | IND | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Amarasinghe, A A C B | | | 1859 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Dabare, Danidu | | | 1340 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Perera, D Upashan L | | | 1181 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Sandaruwan, K A Sachintha | | | 1319 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Manage, S M Dilan Sachintha | | | 1258 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | * 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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