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Individual Calculations April 2009 |
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| Zapata Arbelaes, Stiven Total change: -0.40 | |   |
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| Nacional Sub10 Absoluto | Manizales | COL | 2009-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1924 | 2057 | 2.50 | 3 | 0.50 | 25 | 12.50 | |
|  Taborda, Alejandro | | | 1751 | COL | 0.50 | 1 | -0.36 | 25 | -9.00 | |  Acosta, Jorian Jared | | | 2003 | COL | 1.00 | 1 | 0.42 | 25 | 10.50 | | | Pabon, Juan Pablo | | | 2017 | COL | 1.00 | 1 | 0.44 | 25 | 11.00 | |
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) | | | NOTE: K factor changed | | Torneo departamental Abierto de apertura ANT | Medellin | COL | 2009-01-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2084 | 2057 | 1.00 | 4 | -0.86 | 15 | -12.90 | |
| | Rios, Mauricio | f | | 2306 | COL | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Guarin, Daniela | | | 1997 | COL | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Guerrero, Juan Carlos | | | 2183 | COL | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Nino, Juan Camilo | | | 1851 | COL | 0.00 | 1 | -0.76 | 15 | -11.40 | |
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) | | |
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