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Individual Calculations February 2023 |
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| Kaumina, M Yashika Total change: 48.80 | |   |
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| Ethugalpura Open International Rating Chess Championships 2022 | Kurunegala | SRI | 2022-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1184 | 1259 | 5.00 | 8 | 0.16 | 20 | 3.20 | |
|  Meemanage, Saviru Thinal | | | 1024 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | |  Jeyanthan, Krishna Rahul | | | 1601 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Bandara, B G S N R | | | 1020 | SRI | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Chandrasekara, C M H D | | | 1021 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Perera, M C Anjalo | | | 1078 | SRI | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Kannangara, Ranul Insitha | | | 1080 | SRI | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Weerathungalage, W D Malisha Sasv | | | 1529 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Jayarathne, R R | | | 1117 | SRI | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1454 | 1259 | 4.00 | 7 | 2.13 | 20 | 42.60 | |
| | Hemachandra, P R T M | | | 1505 | SRI | 0.50 | 1 | 0.31 | 20 | 6.20 | | | Herath, H M H C B | | | 1547 | SRI | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Karunarathne, K M H B | | | 1610 | SRI | 1.00 | 1 | 0.89 | 20 | 17.80 | | | Mapa, M M W H | | | 1501 | SRI | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Kothalawala, Ramath Hansaka | | | 1095 | SRI | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Jayasundara, J M Daham V | | | 1463 | SRI | 1.00 | 1 | 0.76 | 20 | 15.20 | | | Insara, S D Nadev | | | 1455 | SRI | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1329 | 1259 | 1.00 | 2 | 0.15 | 20 | 3.00 | |
| | Bentharaarachchi, B D Daksha Hans | | | 1136 | SRI | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Liyanage, Daham Kusalwin | | | 1521 | SRI | 0.00 | 1 | -0.18 | 20 | -3.60 | |
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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