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Individual Calculations January 2018 |
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| Coto Bonilla, Darian Total change: 8.80 | |   |
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| Metropolitano Sub14 2017 | San Jose | CRC | 2017-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1330 | 1658 | 1.00 | 1 | 0.13 | 40 | 5.20 | |
|  Quiros Acuna, Sebastian | | | 1330 | CRC | 1.00 | 1 | 0.13 | 40 | 5.20 | |
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) | | | | VIII Campeonato Panamericano Escolar de Ajedrez Sub 15 Absoluto 2017 | San Salvador | ESA | 2017-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1664 | 1658 | 3.50 | 7 | 0.09 | 40 | 3.60 | |
|  Salazar Gould, Melanie | | wf | 1755 | CRC | 0.50 | 1 | 0.13 | 40 | 5.20 | | | Coto, Walter Alexander | | | 1723 | ESA | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Ortega Beltran, Ximena | | | 1714 | MEX | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Medrano, Daniel | | | 1531 | ESA | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Aguilar, Jackeline Estrella | | | 1665 | ESA | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Ramirez Madrid, Gerardo Alfonso | c | | 1884 | CRC | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Aquino Ventura, Gilda Maria | | | 1374 | ESA | 1.00 | 1 | 0.16 | 40 | 6.40 | |
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) | | |
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