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Individual Calculations September 2019 |
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| Wijekoon, Chandana Total change: 16.60 | |   |
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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 |
| 1748 | 1910 | 6.50 | 8 | 1.05 | 20 | 21.00 | |
|  Jayaweera Gamage, Disindu Hansad | | | 1510 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Wiratunga, Jenith | | | 1510 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Chakravarthi Reddy, M | m | | 2310 * | IND | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Perera, D G D Y Adeekshana | | | 1510 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Seneviratne, Shehan Kavishka | | | 1644 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Kavinda, Akila | | | 2024 | SRI | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Wiratunga, Ishan | | | 1708 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Jayaweera, Y | | | 1767 | SRI | 1.00 | 1 | 0.31 | 20 | 6.20 | | | * 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) | | | | 9th Kandy Open International Chess Festival 2019 | Kandy | SRI | 2019-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1713 | 1910 | 7.00 | 10 | -0.22 | 20 | -4.40 | |
| | Kahawatta, Senith Thewmina | | | 1510 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Herath, H M D A B | | | 1510 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Poththewala, Chamindi | | | 1510 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Madushanka, B W M Malith | | | 1545 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Chakravarthi Reddy, M | m | | 2310 * | IND | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Walisundara, W M U | | | 1681 | SRI | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Kalubowila, K H N | | | 1629 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Alahakoon, Isuru | | | 2138 | SRI | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Saravanabaavan, Brijeash | | | 1593 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Lasitha, Subash | c | | 1702 | SRI | 0.00 | 1 | -0.77 | 20 | -15.40 | | | * 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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