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Individual Calculations June 2023 |
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| Wickramaarachchi, Nayanaka Insara Total change: 96.84 | |   |
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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 |
| 1480 | 1384 | 4.50 | 7 | 1.82 | 36 | 65.52 | |
|  Kularathne, K A Praveen | | | 1121 | SRI | 1.00 | 1 | 0.18 | 36 | 6.48 | |  De Silva, Osheen | | | 1712 | SRI | 0.50 | 1 | 0.37 | 36 | 13.32 | | | Seneviratne, Shehan Kavishka | | | 1652 | SRI | 0.50 | 1 | 0.33 | 36 | 11.88 | | | Methan, Sritharan | | | 1125 | SRI | 1.00 | 1 | 0.18 | 36 | 6.48 | | | Yaparathne, B K B | | | 1546 | SRI | 0.50 | 1 | 0.21 | 36 | 7.56 | | | Abewardhana, A A B D P | | | 1635 | SRI | 0.50 | 1 | 0.31 | 36 | 11.16 | | | Lakshitha, H H Sasindu | | | 1572 | SRI | 0.50 | 1 | 0.24 | 36 | 8.64 | |
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 |
| 1275 | 1384 | 3.00 | 5 | -0.22 | 36 | -7.92 | |
| | Nanayakkara, Lesan Semitha | | | 1156 | SRI | 0.50 | 1 | -0.29 | 36 | -10.44 | | | Wijewickrama, Ayod Induwara | | | 1200 | SRI | 0.00 | 1 | -0.74 | 36 | -26.64 | | | Kasthuriarachchi, K A Risindu Man | | | 1211 | SRI | 1.00 | 1 | 0.27 | 36 | 9.72 | | | Newansa, M Esandi | | | 1581 | SRI | 0.50 | 1 | 0.25 | 36 | 9.00 | | | Dissanayake, D M Madushan Sameera | | | 1229 | SRI | 1.00 | 1 | 0.29 | 36 | 10.44 | |
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 |
| 1408 | 1404 | 4.50 | 7 | 1.09 | 36 | 39.24 | |
| | Kuruppuarachchi, Mihin | | | 1064 | SRI | 1.00 | 1 | 0.12 | 36 | 4.32 | | | Rathnayake, Disula | | | 1080 | SRI | 1.00 | 1 | 0.13 | 36 | 4.68 | | | Madushanka, B W M Malith | | | 1598 | SRI | 0.50 | 1 | 0.25 | 36 | 9.00 | | | Wijekoon, Chandana | c | | 1750 | SRI | 0.50 | 1 | 0.39 | 36 | 14.04 | | | Pathirana, W P Keshara Viraj | | | 1211 | SRI | 1.00 | 1 | 0.25 | 36 | 9.00 | | | Weerathungalage, W D Malisha Sasv | | | 1604 | SRI | 0.50 | 1 | 0.26 | 36 | 9.36 | | | Induwara, T H D Thisarindu | | | 1548 | SRI | 0.00 | 1 | -0.31 | 36 | -11.16 | |
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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