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Individual Calculations February 2020 |
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| Ruiz Alfaro, Darrel Total change: 31.60 | |   |
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| Torneo Abierto Metropolitano Grupo B 2019 | San Jose | CRC | 2019-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1426 | 1347 | 2.00 | 6 | -0.43 | 40 | -17.20 | |
|  Valverde Mora, Mauricio | | | 1692 | CRC | 0.00 | 1 | -0.11 | 40 | -4.40 | |  Hernandez Perez, Javier Francisco | | | 1114 | CRC | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Chaves Solera, Milton | | | 1520 | CRC | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Lopez Rojas, Aaron | | | 1281 | CRC | 1.00 | 1 | 0.41 | 40 | 16.40 | | | Thuel Gutierrez, Jose Andres | | | 1405 | CRC | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Rivas Calderon, Victor Julio | | | 1544 | CRC | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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) | | | | Campeonato Nacional Infantil Sub16 2020 | Escazu | CRC | 2020-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1451 | 1347 | 4.00 | 7 | 1.22 | 40 | 48.80 | |
| | Nunez Okubo, Isao | c | | 1739 | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rojas Esquivel, Luis Julian | | | 1089 | CRC | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Mena Brenes, Deivid | | | 1272 | CRC | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Barquero Alfaro, Alejandro | | | 1321 | CRC | 1.00 | 1 | 0.46 | 40 | 18.40 | | | Coto Calderon, Juan Diego | | | 1637 | CRC | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Cartin Aguilar, Luis Javier | | | 1747 * | CRC | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Sierra Berrocal, Auriel | | | 1349 | CRC | 0.50 | 1 | 0.00 | 40 | 0.00 | | | * 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) | | |
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