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Individual Calculations September 2019 |
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| Maithripala, W D P N Total change: 42.80 | |   |
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| Sri Lanka open International Rating Chess Championship 2019 | Anuradhapura | SRI | 2019-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1551 | 1175 | 1.50 | 5 | 1.01 | 40 | 40.40 | |
|  Obeysekara, T A Sajith Chathuran | | | 1575 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kalubowila, K H N | | | 1575 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Perera, Thilina | | | 1453 | SRI | 1.00 | 1 | 0.83 | 40 | 33.20 | | | Seneviratne, Shehan Kavishka | | | 1575 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Abeywickrama, Sachintha | | | 1575 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | * 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) | | | | 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1460 | 1175 | 0.50 | 4 | -0.19 | 40 | -7.60 | |
| | Epa, W Buthmi J | | | 1515 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Lasitha, Subash | c | | 1575 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Ahangama, Senuka Aswin | | | 1325 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Wijerathne, Surath | | | 1423 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | * 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) | | | | 9th Kandy Open International Chess Festival 2019 | Kandy | SRI | 2019-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1368 | 1175 | 1.50 | 5 | 0.25 | 40 | 10.00 | |
| | Kithmal, P M Kalindhu | | | 1458 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Punchihewa, Kokila Prageeth | | | 1321 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Perera, Isara Ranmeth | | | 1313 | SRI | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Jayaweera, Hashan | | | 1373 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Mendis, Chandeepa | | | 1375 | SRI | 0.00 | 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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