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Blitz:
Individual Calculations May 2019 |
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| Pathirage, Yukitha Kenula Perera Total change: 25.40 | |   |
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| Sri Lanka National Youth Blitz Chess Championship 2019 - Under 10 Open | Colombo | SRI | 2019-03-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1086 | 1098 | 1.50 | 2 | 0.46 | 20 | 9.20 | |
|  Godagampala, G D Minuja Hansana | | | 1064 | SRI | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Liyanage, Savinu Suhaswin | | | 1108 | SRI | 0.50 | 1 | 0.01 | 20 | 0.20 | |
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) | | | | Asian Youth Blitz Chess Championship 2019 - Under 10 Open | Colombo | SRI | 2019-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1328 | 1098 | 1.50 | 3 | 0.81 | 20 | 16.20 | |
| | Adireddy, Arjun | | | 1472 | IND | 0.00 | 1 | -0.10 | 20 | -2.00 | |  Tan, Darren Emmanuel Aprilio | | | 1235 | INA | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Wijerathna, Mayon Thinoth | | | 1277 | SRI | 1.00 | 1 | 0.73 | 20 | 14.60 | |
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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