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Individual Calculations August 2023 |
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| Gowsalyan, S Total change: 57.40 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1378 | 1378 | 5.50 | 8 | 1.42 | 20 | 28.40 | |
|  Perera, G G U Nawathma | | | 1017 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Dissanayake, R K T | | | 1882 | SRI | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Meegahage, Savithu Sithew | | | 1016 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Bandara, B G S N R | | | 1208 | SRI | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Alahakoon, T N | | | 1669 | SRI | 0.50 | 1 | 0.35 | 20 | 7.00 | | | Hendavitharana, D S | | | 1460 | SRI | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Punchihewa, Hasith Thevindu | | | 1234 | SRI | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Insara, S D Nadev | | | 1537 | SRI | 0.50 | 1 | 0.21 | 20 | 4.20 | |
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) | | | | Sri Lanka National Team Chess Championship 2023 | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1593 | 1408 | 3.00 | 5 | 1.45 | 20 | 29.00 | |
| | Samaranayake, K P R N | | | 1802 | SRI | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Katheesan, U | | | 1023 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Gunawardena, I M P T | | | 1551 | SRI | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Ponnamperuma, Weraka Vasath | | | 1625 | SRI | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Subasinghe, K R V R | | | 1966 | SRI | 0.00 | 1 | -0.03 | 20 | -0.60 | |
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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