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Individual Calculations January 2018 |
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| Alfaro, William Total change: -8.60 | |   |
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| XVII Torneo Internacional de Ajedrez Ing. Joaquin Hurtado in Memoriam 20 | Managua | NCA | 2017-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 2170 | 5.50 | 9 | -0.60 | 20 | -12.00 | |
|  Salgado, Wilbert | | | 1770 * | NCA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Morales, Alvaro Antonio | | | 1957 | NCA | 0.00 | 1 | -0.77 | 20 | -15.40 | | | Obregon Amador, Jose Francisco | | | 1801 | HON | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Gavarrete, Nahun | f | | 2224 | HON | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Pilarte, Mario | c | | 1860 | NCA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Cardenas Carbajal, Nilson | | | 2107 | HON | 0.50 | 1 | -0.09 | 20 | -1.80 | | | Davila, Carlos | m | | 2248 | NCA | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Pilarte, Rene | f | | 2132 | NCA | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Castillo, Rommel | | | 2023 | NCA | 0.50 | 1 | -0.20 | 20 | -4.00 | | | * 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) | | | | I Torneo Abierto de Liberia 2017 | Liberia | CRC | 2017-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 2170 | 3.00 | 4 | 0.17 | 20 | 3.40 | |
| | Zeledon Perez, Edgar | | | 1806 | CRC | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Chaves Sanchez, Gabriel A | | | 2102 | CRC | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Bonilla Mora, Luis Daniel | | | 1937 | CRC | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Picado, Jorge | | | 2137 | NCA | 1.00 | 1 | 0.45 | 20 | 9.00 | |
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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