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Individual Calculations September 2019 |
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| Lopez Rojas, Aaron Total change: -39.60 | |   |
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| Campeonato Nacional Abierto 2019 | San Jose | CRC | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1553 | 1321 | 0.00 | 4 | -0.99 | 40 | -39.60 | |
|  Morera Campos, Hazel Maria | | wm | 1721 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Barrantes Batalla, Gerardo | | | 1295 | CRC | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Murillo Arguedas, Jaime | | | 1721 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rodriguez Sanchez, Mauricio | | | 1476 | CRC | 0.00 | 1 | -0.29 | 40 | -11.60 | | | * 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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