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Individual Calculations February 2023 |
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| Bimansa, D G Jayandi Total change: -69.35 | |   |
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| CFSL Golden Jubilee International Rating Chess Tournament 2022 | Colombo | SRI | 2022-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1225 | 1128 | 4.00 | 8 | 0.68 | 19 | 12.92 | |
|  Liyanage, D Sathini Disathna | | | 1089 | SRI | 0.50 | 1 | -0.05 | 19 | -0.95 | |  Wadduwage, Thamindu Upeksha | | | 1057 | SRI | 0.50 | 1 | -0.10 | 19 | -1.90 | | | Amarathunga, Piyumi Uthpala | | | 1165 | SRI | 0.50 | 1 | 0.05 | 19 | 0.95 | | | Nawanjana, R A Thaweesha | | | 1162 | SRI | 0.50 | 1 | 0.05 | 19 | 0.95 | | | Amarathunga, Kosala Sandeepa Cham | | | 1389 | SRI | 0.00 | 1 | -0.18 | 19 | -3.42 | | | Fernando, Diyon Senuth Randilu | | | 1072 | SRI | 1.00 | 1 | 0.42 | 19 | 7.98 | | | Fernando, Mayon Dinuth Mindula | | | 1138 | SRI | 1.00 | 1 | 0.51 | 19 | 9.69 | | | Sivathanujan, S | | | 1729 | SRI | 0.00 | 1 | -0.02 | 19 | -0.38 | |
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) | | | | Asia Schools CC 2022- U 13 G | Kaluthara | SRI | 2022-12-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1150 | 1333 | 4.50 | 9 | -2.06 | 19 | -39.14 | |
| | Mendis, Imethra | | | 1133 | SRI | 1.00 | 1 | 0.24 | 19 | 4.56 | | | Gunasekara, K P K Hesara | | | 1237 | SRI | 0.00 | 1 | -0.63 | 19 | -11.97 | | | Somarathne, L H M G S | | | 1156 | SRI | 0.50 | 1 | -0.23 | 19 | -4.37 | | | Thilakawardena, A K P Namya Dine | | | 1014 | SRI | 1.00 | 1 | 0.13 | 19 | 2.47 | | | Alemanova, Yasmina | | | 1287 | KAZ | 0.00 | 1 | -0.56 | 19 | -10.64 | | | Liyanage, D Sathini Disathna | | | 1084 | SRI | 1.00 | 1 | 0.19 | 19 | 3.61 | | | Dakshitha, Anand | | | 1089 | IND | 0.50 | 1 | -0.30 | 19 | -5.70 | | | Wijesinghe, Amesha Shenali | | | 1090 | SRI | 0.50 | 1 | -0.30 | 19 | -5.70 | | | Ranganath, Tharuli Vihasna | | | 1263 | SRI | 0.00 | 1 | -0.60 | 19 | -11.40 | |
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) | | | | Ethugalpura Open International Rating Chess Championships 2022 | Kurunegala | SRI | 2022-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1226 | 1333 | 3.50 | 6 | -0.51 | 19 | -9.69 | |
| | Siriwimala , Sanula Vihas | | | 1143 | SRI | 1.00 | 1 | 0.25 | 19 | 4.75 | | | Amarasinghe, A A C B | c | | 1908 | SRI | 0.00 | 1 | -0.02 | 19 | -0.38 | | | Perera, M C Anjalo | | | 1078 | SRI | 0.00 | 1 | -0.81 | 19 | -15.39 | | | Chandrasekara, C M H D | | | 1021 | SRI | 1.00 | 1 | 0.14 | 19 | 2.66 | | | Ransilu, K A Rahal | | | 1128 | SRI | 0.50 | 1 | -0.26 | 19 | -4.94 | | | Kannangara, Ranul Insitha | | | 1080 | SRI | 1.00 | 1 | 0.19 | 19 | 3.61 | |
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 |
| 1179 | 1333 | 2.50 | 6 | -1.68 | 19 | -31.92 | |
| | Kuruppu, Sadinsa | | | 1106 | SRI | 1.00 | 1 | 0.21 | 19 | 3.99 | | | Madushanka, Harsha | | | 1691 | SRI | 0.00 | 1 | -0.10 | 19 | -1.90 | | | Nuwarapaksha, N P M Lakvindu | | | 1077 | SRI | 0.50 | 1 | -0.31 | 19 | -5.89 | | | Vidanapathirana, Sharmila Taniya | | | 1064 | SRI | 1.00 | 1 | 0.17 | 19 | 3.23 | | | Fernando, Diyon Senuth Randilu | | | 1072 | SRI | 0.00 | 1 | -0.82 | 19 | -15.58 | | | Inpanilavan, M | | | 1062 | SRI | 0.00 | 1 | -0.83 | 19 | -15.77 | |
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 |
| 1357 | 1333 | 3.50 | 7 | -0.08 | 19 | -1.52 | |
| | Alahakoon, Isuru | f | | 1925 | SRI | 0.00 | 1 | -0.02 | 19 | -0.38 | | | Welikala, D Thevin Dewnim | | | 1018 | SRI | 0.50 | 1 | -0.36 | 19 | -6.84 | | | Bandara, B G S N R | | | 1020 | SRI | 1.00 | 1 | 0.14 | 19 | 2.66 | | | Perera, Thisara Randinu | | | 1098 | SRI | 0.50 | 1 | -0.29 | 19 | -5.51 | | | Vithanage, P N | | | 1023 | SRI | 1.00 | 1 | 0.14 | 19 | 2.66 | | | Madushanka, Harsha | | | 1691 | SRI | 0.50 | 1 | 0.40 | 19 | 7.60 | | | Lamahewa, S | | | 1723 | SRI | 0.00 | 1 | -0.09 | 19 | -1.71 | |
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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