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Individual Calculations January 2024 |
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| Somarathne, Senuka Damsath Total change: -68.80 | |   |
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| Jaffna International Rating Open Chess tournament 2023 | Jaffna | SRI | 2023-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1184 | 1368 | 3.50 | 6 | -0.81 | 40 | -32.40 | |
|  Thushiyanthan, Vatsalan | | | 1181 | SRI | 0.00 | 1 | -0.74 | 40 | -29.60 | |  Rajasingham, Thilagarajah | | | 1035 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Piumaja, W D H | | | 1141 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Thenusha, K | | | 1021 | SRI | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Dhanushikan, G | | | 1124 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Seneviratne, Shehan Kavishka | | | 1599 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | |
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) | | | | Ehugalpura International Open Chess Championship 2023 | Kurunegala | SRI | 2023-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1142 | 1368 | 3.00 | 5 | -0.91 | 40 | -36.40 | |
| | Samarakoon, S M M E | | | 1065 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Abeyrathne, M P Dulansa Dewmini | | | 1146 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Madurawala, M G D S Shanuka | | | 1180 | SRI | 0.00 | 1 | -0.74 | 40 | -29.60 | | | Dissanayake, K M S M | | | 1118 | SRI | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Devaraja, Dahamsa Punsadi | | | 1202 | SRI | 0.00 | 1 | -0.72 | 40 | -28.80 | |
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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