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Individual Calculations March 2018 |
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| Perera, G Poorna Udara Dhananjay Total change: 37.60 | |   |
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| Kaluthara International Chess Festival 2018 | Kaluthara | SRI | 2018-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1254 | 1045 | 1.50 | 3 | 0.80 | 40 | 32.00 | |
|  Devnaka, Chamin | | | 1238 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Peiris, K Bimsara | | | 1273 | SRI | 0.50 | 1 | 0.29 | 40 | 11.60 | |  Hetti Arachchige, Thisumi S | | | 1250 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | |
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) | | | | Sri Lanka National (Major Division) Chess Championship 2018 - Colombo Event | Colombo | SRI | 2018-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1336 | 1053 | 0.50 | 2 | 0.14 | 40 | 5.60 | |
| | Cooray, T C M Dulein Kavindu | | | 1453 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Akasha, J P Vihanga | | | 1219 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | * 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) | | |
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