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Rapid:
Individual Calculations December 2018 |
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| Perera, K L D J Total change: 6.40 | |   |
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| Mercantile and Government Service Rapid Chess Championship 2018 | Colombo | SRI | 2018-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1543 | 1573 | 2.50 | 4 | 0.32 | 20 | 6.40 | |
|  Arachchi, C S A | | | 1322 | SRI | 0.50 | 1 | -0.31 | 20 | -6.20 | |  Samarakoon, U L | | | 1862 | SRI | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Deepthi, Deepamala | | | 1445 | SRI | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Siriwardana, Sheranga | | | 1541 | SRI | 1.00 | 1 | 0.46 | 20 | 9.20 | |
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) | | |
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