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Individual Calculations August 2023 |
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| Alahakoon, T N Total change: -32.00 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1313 | 1669 | 5.00 | 7 | -1.18 | 20 | -23.60 | |
|  Perera, T H Adrian Savidya | | | 1269 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Vishaleni, U | | | 1199 | SRI | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Lavanga, D Binuka | | | 1395 | SRI | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Gowsalyan, S | | | 1378 | SRI | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Manuwaruna, Sethun Neththaru | | | 1427 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Viranya, A R M V | | | 1184 | SRI | 1.00 | 1 | 0.04 | 20 | 0.80 | | | Sanuda, Rehan | | | 1342 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 |
| 1700 | 1669 | 0.50 | 2 | -0.42 | 20 | -8.40 | |
| | Weerawardane, Romesh | m | | 1836 | SRI | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Gamage, Ovin Vidmal | | | 1563 | SRI | 0.50 | 1 | -0.14 | 20 | -2.80 | |
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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