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Individual Calculations October 2019 |
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| Herath, H M M D Total change: -4.00 | |   |
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| Sri Lanka Girls National Chess Championship 2019 | Colombo | SRI | 2019-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1295 | 1349 | 4.00 | 6 | 0.61 | 40 | 24.40 | |
|  Divyanjalie, W S M | | | 1109 | SRI | 0.50 | 1 | -0.30 | 40 | -12.00 | |  Subasinghe, S M T D | | | 1131 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Epa, W Buthmi J | | | 1515 | SRI | 1.00 | 1 | 0.72 | 40 | 28.80 | | | Wijesuriya, G P Y | | wc | 1548 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Thanujana, D M Sinaly | | | 1119 | SRI | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Srilal, D A D T | | | 1347 | SRI | 0.50 | 1 | 0.00 | 40 | 0.00 | |
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) | | | | 10th Buddhi International Rating Chess Championship 2019 | Gampaha | SRI | 2019-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1246 | 1322 | 3.50 | 7 | -0.71 | 40 | -28.40 | |
| | Sooriyaarachchi, Isuru Madusha | | | 1536 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Sakshiyan, N | | | 1061 | SRI | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Kalubowila, K H N | | | 1594 | SRI | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Alwis, Jenuki | | | 1150 | SRI | 0.00 | 1 | -0.73 | 40 | -29.20 | | | Sooriyapperuma, S V P P | | | 1084 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Piyathilaka, Oshadhi Ruwanya | | | 1159 | SRI | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Perera, K S D | | | 1135 | SRI | 0.50 | 1 | -0.24 | 40 | -9.60 | |
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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