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Individual Calculations February 2019 |
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| Sierra Berrocal, Auriel Total change: -33.60 | |   |
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| Abierto Internacional Metropolitano U14 2018 | San Jose | CRC | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1108 | 1247 | 1.50 | 2 | 0.13 | 40 | 5.20 | |
|  Rios Hernandez, Brandon | | | 1085 | CRC | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Fallas Marin, Kaleb | | | 1130 | CRC | 1.00 | 1 | 0.34 | 40 | 13.60 | |
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) | | | | Campeonato Nacional Juvenil Absoluto Sub16 2019 | San Jose | CRC | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1343 | 1247 | 1.00 | 5 | -0.97 | 40 | -38.80 | |
|  Shih Gould, Danny | f | | 1647 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Hernandez Brenes, Keylor | | | 1039 | CRC | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Solano Saltachin, Javier | | | 1392 | CRC | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Miranda Blanco, Aylan Josue | | | 1262 | CRC | 1.00 | 1 | 0.52 | 40 | 20.80 | | | Meza Vega, Jose Antonio | | | 1376 | CRC | 0.00 | 1 | -0.33 | 40 | -13.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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