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Individual Calculations February 2015 |
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| Bonilla Morales, Bryan Total change: -20.80 | |   |
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| Campeonato Nacional CRC Sub 14 Abierto 2015 | San Jose | CRC | 2015-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1444 | 1513 | 0.00 | 2 | -1.19 | 40 | -47.60 | |
|  Torres Romero, Cristhian | | | 1452 | CRC | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Ramirez Madrid, Gerardo Alfonso | | | 1435 | CRC | 0.00 | 1 | -0.61 | 40 | -24.40 | |
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) | | | | Campeonato Nacional CRC Sub 20 Abierto 2015 | San Jose | CRC | 2015-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1796 | 1513 | 1.00 | 2 | 0.67 | 40 | 26.80 | |
| | Quesada Campos, Jordi Alessandre | | | 1858 | CRC | 0.00 | 1 | -0.11 | 40 | -4.40 | |  Huang He, Guan Lin | | | 1734 | CRC | 1.00 | 1 | 0.78 | 40 | 31.20 | |
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) | | |
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