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Individual Calculations June 2023 |
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| Nanayakkara, Sanuk Total change: -28.35 | |   |
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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 |
| 1342 | 1412 | 4.50 | 7 | 0.30 | 35 | 10.50 | |
|  Premathilaka, W P P G Sampath | | | 1130 | SRI | 1.00 | 1 | 0.16 | 35 | 5.60 | |  Sivathanujan, S | | | 1833 | SRI | 0.00 | 1 | -0.07 | 35 | -2.45 | | | Wijewardane, Sharin | | | 1142 | SRI | 1.00 | 1 | 0.17 | 35 | 5.95 | | | Devasurendra, Menuksha Sahen | | | 1171 | SRI | 1.00 | 1 | 0.20 | 35 | 7.00 | | | Pathmasiri, R D Isuru Saranga | | | 1285 | SRI | 1.00 | 1 | 0.33 | 35 | 11.55 | | | Wijekoon, Chandana | c | | 1772 | SRI | 0.00 | 1 | -0.10 | 35 | -3.50 | | | Munasinghe, M A D D D | | | 1061 | SRI | 0.50 | 1 | -0.39 | 35 | -13.65 | |
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 National Youth Chess Championship 2023 - Under 12Yrs Open | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1108 | 1412 | 4.50 | 6 | -0.61 | 35 | -21.35 | |
| | Wanniarachchi, Senuka Buvindu | | | 1084 | SRI | 0.00 | 1 | -0.87 | 35 | -30.45 | | | Perera, M A Kisandu Randira | | | 1024 | SRI | 1.00 | 1 | 0.09 | 35 | 3.15 | | | Nandasiri, Omiru | | | 1130 | SRI | 0.50 | 1 | -0.34 | 35 | -11.90 | | | Hapuarachchi, H A D S | | | 1115 | SRI | 1.00 | 1 | 0.15 | 35 | 5.25 | | | Fernando, B Thisula Dewsarana | | | 1146 | SRI | 1.00 | 1 | 0.18 | 35 | 6.30 | | | Yapa, Y P G P | | | 1149 | SRI | 1.00 | 1 | 0.18 | 35 | 6.30 | |
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 |
| 1331 | 1455 | 4.00 | 7 | -0.50 | 35 | -17.50 | |
| | Fernando, Diyon Senuth Randilu | | | 1111 | SRI | 0.00 | 1 | -0.88 | 35 | -30.80 | | | Waidyasekara, R H Risara Geeneth | | | 1122 | SRI | 1.00 | 1 | 0.12 | 35 | 4.20 | | | Siriwardene, R B Sithum Nevanjith | | | 1191 | SRI | 1.00 | 1 | 0.18 | 35 | 6.30 | | | Gunawardhane, Dunitha Yathindra | | | 1302 | SRI | 1.00 | 1 | 0.30 | 35 | 10.50 | | | De Silva, Osheen | | | 1676 | SRI | 0.00 | 1 | -0.22 | 35 | -7.70 | | | Deenad, Jathunge Sanjul | | | 1203 | SRI | 1.00 | 1 | 0.19 | 35 | 6.65 | | | Jayaweera, Y | | | 1711 | SRI | 0.00 | 1 | -0.19 | 35 | -6.65 | |
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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