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Individual Calculations June 2023 |
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| Laksiri, A A Kavishka Gimshan Total change: 86.31 | |   |
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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 |
| 1401 | 1485 | 6.00 | 9 | 0.59 | 21 | 12.39 | |
|  Fernando, B Resandu Arsh Dakshith | | | 1082 | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | |  Fernando, B Thisula Dewsarana | | | 1146 | SRI | 1.00 | 1 | 0.12 | 21 | 2.52 | | | Sanviru, G H A Dulnith | | | 1272 | SRI | 1.00 | 1 | 0.23 | 21 | 4.83 | | | Peiris, T S S | f | | 1882 | SRI | 1.00 | 1 | 0.92 | 21 | 19.32 | | | Sivathanujan, S | | | 1833 | SRI | 0.00 | 1 | -0.11 | 21 | -2.31 | | | Madurawala, M G D S Shanuka | | | 1230 | SRI | 1.00 | 1 | 0.19 | 21 | 3.99 | | | Seneviratne, Shehan Kavishka | | | 1652 | SRI | 0.00 | 1 | -0.28 | 21 | -5.88 | | | Perera, B Jayod Yasindu Rashmika | | | 1335 | SRI | 0.50 | 1 | -0.20 | 21 | -4.20 | | | Dharan, A | | | 1178 | SRI | 0.50 | 1 | -0.36 | 21 | -7.56 | |
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 SSC Open International Rating Chess Championship 2023 | Matara | SRI | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1329 | 1485 | 6.00 | 8 | 0.61 | 21 | 12.81 | |
| | Kannangara, Ranul Insitha | | | 1079 | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | | | Namarathna, H K T I | | | 1197 | SRI | 1.00 | 1 | 0.16 | 21 | 3.36 | | | Fernando, W K B Thumula Theekshan | | | 1243 | SRI | 1.00 | 1 | 0.20 | 21 | 4.20 | | | Abiru, K A Aken | | | 1371 | SRI | 0.50 | 1 | -0.16 | 21 | -3.36 | | | Pehesara, P G Nithuni | | | 1369 | SRI | 1.00 | 1 | 0.34 | 21 | 7.14 | | | De Silva, Osheen | | | 1712 | SRI | 0.00 | 1 | -0.21 | 21 | -4.41 | | | Welikumbura, D M | | | 1085 * | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | | | Samaranayake, Pamok Methdinu | | | 1572 | SRI | 0.50 | 1 | 0.12 | 21 | 2.52 | | | * 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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1506 | 1619 | 6.50 | 8 | 1.53 | 21 | 32.13 | |
| | Gamage, P Lakindu Chamalka | | | 1219 * | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | | | Amarathunga, Piyumi Uthpala | | | 1262 | SRI | 1.00 | 1 | 0.11 | 21 | 2.31 | | | Wimalarathne, K G | | | 1442 | SRI | 1.00 | 1 | 0.27 | 21 | 5.67 | | | Alahakoon, Isuru | f | | 1819 | SRI | 0.50 | 1 | 0.26 | 21 | 5.46 | | | Wimalasiri, Ransith Pabalu | | | 1318 | SRI | 1.00 | 1 | 0.15 | 21 | 3.15 | | | Gunawardhana, Devindya Oshini | | | 1534 | SRI | 1.00 | 1 | 0.38 | 21 | 7.98 | | | Sivathanujan, S | | | 1809 | SRI | 0.50 | 1 | 0.25 | 21 | 5.25 | | | Kodithuwakku, Himsara | | | 1641 | SRI | 0.50 | 1 | 0.03 | 21 | 0.63 | | | * 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) | | | | 1st Rahulians International Chess Festival 2023 | Matara | SRI | 2023-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1471 | 1619 | 6.00 | 7 | 1.38 | 21 | 28.98 | |
| | Dissanayake, D M Madushan Sameera | | | 1219 * | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | | | Indrajith, J A K N T | | | 1302 | SRI | 1.00 | 1 | 0.13 | 21 | 2.73 | | | Sivathanujan, S | | | 1809 | SRI | 0.00 | 1 | -0.25 | 21 | -5.25 | | | De, Silva Kk Onitha Dinudika | | | 1275 | SRI | 1.00 | 1 | 0.12 | 21 | 2.52 | | | Pesanjith, M T H Sansutha | | | 1341 | SRI | 1.00 | 1 | 0.17 | 21 | 3.57 | | | Amarasinghe, A A C B | c | | 1843 | SRI | 1.00 | 1 | 0.78 | 21 | 16.38 | | | Lakshitha, H H Sasindu | | | 1506 | SRI | 1.00 | 1 | 0.35 | 21 | 7.35 | | | * 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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