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Individual Calculations April 2019 |
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| Perera, S D Lahiru Total change: 42.40 | |   |
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| Battle of the Kings 2019 | Colombo | SRI | 2019-02-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1296 | 1271 | 3.00 | 4 | 1.16 | 40 | 46.40 | |
|  Fernanado, C Bimsara | | | 1035 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Fernando, M Tharusha Randima | | | 1436 | SRI | 1.00 | 1 | 0.72 | 40 | 28.80 | |  Rathnayake, Nevindi Gihansa | | | 1378 | SRI | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Kanakarathne, S Nevinka De Silva | | | 1334 | SRI | 1.00 | 1 | 0.59 | 40 | 23.60 | |
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) | | | | Sri Lanka National Major Division Chess Championship 2019 - Colombo Event | Colombo | SRI | 2019-03-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1248 | 1271 | 2.00 | 4 | -0.10 | 40 | -4.00 | |
| | Samarakoon, Vivash Ransara | | | 1010 | SRI | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Piyathilake, K D D H | | | 1466 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Herath, H M S S A | | | 1451 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Weerasekara, Dinul Vinsitha | | | 1063 | SRI | 0.50 | 1 | -0.27 | 40 | -10.80 | |
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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