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Individual Calculations June 2023 |
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| Lakshitha, H H Sasindu Total change: -46.80 | |   |
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| Supr Knights Open International Rating Chess Championship 2023 | Colombo | SRI | 2023-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1262 | 1572 | 6.50 | 9 | -1.14 | 20 | -22.80 | |
|  Piyantha, M A G A | | | 1172 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Kiringoda, Thehas Rithmitha | | | 1229 | SRI | 0.50 | 1 | -0.38 | 20 | -7.60 | | | Dharan, A | | | 1178 | SRI | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Abeysekera, Bises Oneja | | | 1135 | SRI | 1.00 | 1 | 0.06 | 20 | 1.20 | | | Bandara, L R D B | | | 1251 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Hettiarachchi, Jeewantha Aloka | | | 1420 | SRI | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Perera, B Jayod Yasindu Rashmika | | | 1335 | SRI | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Wickramaarachchi, Nayanaka Insara | | | 1384 | SRI | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Edirisinghe, E A B T | | | 1255 | 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) | | | | Sri Lanka Mercantile and Government Service Chess Championship 2023 | Colombo | SRI | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1493 | 1572 | 3.50 | 6 | 0.05 | 20 | 1.00 | |
| | Hewawasam, Vishal | | | 1167 | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kandearachchi, Niranga | | | 1824 | SRI | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Perera, Eroshen | | | 1252 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Karunarathne, D D W Gamini | | | 1243 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Munasinghe, Minura V | | | 1626 | SRI | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Dickmadugodage, Ravi Prabath | | | 1845 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | |
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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1295 | 1506 | 4.00 | 7 | -1.23 | 20 | -24.60 | |
| | Waidyasekara, R H Risara Geeneth | | | 1122 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Deenad, Jathunge Sanjul | | | 1203 | SRI | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Kaluarachchi, Achinthya Shamen | | | 1844 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Dehigaspitiya, Senidu | | | 1237 | SRI | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Chamathka, W A Chethani | | | 1335 | SRI | 0.00 | 1 | -0.73 | 20 | -14.60 | | | Nandasiri, Omiru | | | 1176 | SRI | 0.50 | 1 | -0.38 | 20 | -7.60 | | | Fernando, B Thisula Dewsarana | | | 1146 | SRI | 0.50 | 1 | -0.40 | 20 | -8.00 | |
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) | | | | 1st Rahulians International Chess Festival 2023 | Matara | SRI | 2023-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1380 | 1506 | 4.50 | 7 | -0.02 | 20 | -0.40 | |
| | Kasthuriarachchi, K A Risindu Man | | | 1211 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Abayasinghe, Sehath | | | 1101 | SRI | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Gunawardena, Ramiru Sithika | | | 1308 | SRI | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Nimthaka, U J Nimuthu | | | 1287 | SRI | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Pehesara, P G Nithuni | | | 1369 | SRI | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Chandrasekara, Pranieth | | | 1768 | SRI | 0.50 | 1 | 0.32 | 20 | 6.40 | | | Laksiri, A A Kavishka Gimshan | | | 1619 | SRI | 0.00 | 1 | -0.35 | 20 | -7.00 | |
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) | | |
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