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Individual Calculations February 2020 |
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| Welikadaarachchi, D. J. P. Total change: 8.80 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 15 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1292 | 1098 | 1.00 | 3 | 0.12 | 40 | 4.80 | |
|  Dabarera, G W D M | | | 1498 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Salgado, M V Induwara | | | 1006 | SRI | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Harrikizhan, K C | | | 1372 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | * 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) | | | | Battle of the Kings - All Island Schools Team Chess Championship 2020 | Colombo | SRI | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1132 | 1098 | 1.00 | 2 | 0.10 | 40 | 4.00 | |
| | Anattapathirana, Pamith Kithmin | | | 1167 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Ali, N M Hassan | | | 1096 | SRI | 0.50 | 1 | 0.00 | 40 | 0.00 | |
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) | | |
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