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Individual Calculations August 2018 |
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| Fonseka, Waranakulasuriya Chan Ch Total change: 63.20 | |   |
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| 5th Sri Lanka National Amateur International Rating Chess Championships 2018 | Kurunegala | SRI | 2018-06-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1432 | 1248 | 2.50 | 6 | 0.75 | 20 | 15.00 | |
|  Lamahewa, C | | | 1648 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Samarakoon, Hevidu | | | 1497 | SRI | 0.50 | 1 | 0.31 | 20 | 6.20 | | | Lansakara, B M | | | 1473 | SRI | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Yaparathne, B K B | | | 1611 | SRI | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Wijesooriya, Rasindu | | | 1346 | SRI | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Denuwan, G S | | | 1019 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | * 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) | | | | 3rd SSC Open International Rating Chess Tournament 2018 | Matara | SRI | 2018-06-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1445 | 1248 | 2.00 | 5 | 0.62 | 20 | 12.40 | |
| | Ranasinghe, Dilshani | | | 1553 | SRI | 0.50 | 1 | 0.36 | 20 | 7.20 | | | Dissanayake, D D M R P K | | | 1522 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Methmani, Nelunika | | wm | 1643 | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Sanviru, G H A Dulnith | | | 1001 | SRI | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Deshappriya, D Kalindu | | | 1505 | SRI | 0.50 | 1 | 0.32 | 20 | 6.40 | |
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) | | | | Inter University Chess Championship 2018 - Men | Colombo | SRI | 2018-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1609 | 1248 | 2.00 | 2 | 1.79 | 20 | 35.80 | |
| | Yatawala, Manushka | | | 1574 | SRI | 1.00 | 1 | 0.87 | 20 | 17.40 | | | Bandara, A J S D | | | 1644 | SRI | 1.00 | 1 | 0.92 | 20 | 18.40 | |
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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