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Individual Calculations February 2023 |
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| Nanayakkara, M M Total change: 55.60 | |   |
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| Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1460 | 1169 | 0.50 | 3 | 0.03 | 40 | 1.20 | |
|  Morais, Sanithu Leander Pamudith | | | 1433 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Yapa Bandara, Chamodya | | | 1490 | SRI | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Dissanayake, D M S L | | | 1456 | SRI | 0.00 | 1 | -0.16 | 40 | -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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1431 | 1169 | 2.50 | 6 | 1.36 | 40 | 54.40 | |
| | Jayanka, L P P R | | | 1370 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Sanuda, Rehan | | | 1358 | SRI | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Karunarathne, K M H B | | | 1610 | SRI | 1.00 | 1 | 0.94 | 40 | 37.60 | |  Wickramaarachchi, Nayanaka Insara | | | 1440 | SRI | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Lavanga, D Binuka | | | 1341 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Gunaweera, Geenuka Kavinu | | | 1464 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | |
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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