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Individual Calculations February 2017 |
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| Alfaro Leon, Allison Total change: -2.00 | |   |
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| Campeonato Nacional Juvenil Sub18 2017 | San Jose | CRC | 2017-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1485 | 1372 | 1.50 | 4 | -0.05 | 40 | -2.00 | |
|  Castillo Morales, Thais | | wc | 1769 | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Chaves Williams, Jose Andres | | | 1645 | CRC | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Gonzalez Cascante, Roy | | | 1241 | CRC | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Porras Chavarria, Pamela Maria | | | 1285 | CRC | 0.50 | 1 | -0.12 | 40 | -4.80 | |
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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