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Individual Calculations July 2009 |
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| Sosa Trani, Luis Total change: -37.65 | |   |
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| VI Torneo Internacional Jose de Diego | Aguadilla | PUR | 2009-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2133 | 1.50 | 3 | -0.39 | 15 | -5.85 | |
|  Segarra Choe, Tammy | | | 1825 | PUR | 0.50 | 1 | -0.36 | 15 | -5.40 | |  Puntier, William | f | | 2300 | DOM | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Aybar, Omaira | | | 1937 | DOM | 0.50 | 1 | -0.25 | 15 | -3.75 | |
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) | | | | Caguas International | Caguas | PUR | 2009-05-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2041 | 2133 | 1.00 | 4 | -1.45 | 15 | -21.75 | |
| | Montalvo Rosario, Alejandro | m | | 2251 | PUR | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Rabin, Evan Z | | | 2033 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Montanez Nazario, Roberto | | | 2055 | PUR | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Segarra Choe, Tammy | | | 1825 | PUR | 0.50 | 1 | -0.36 | 15 | -5.40 | |
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) | | | | Puerto Rico National Championship Clasificatory 2009 | Bayamon | PUR | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2091 | 2133 | 1.00 | 3 | -0.67 | 15 | -10.05 | |
| | Guzman, Carlos | | | 2028 | PUR | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Montanez Nazario, Roberto | | | 2055 | PUR | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Ramirez, Carlos | | | 2189 | PUR | 1.00 | 1 | 0.58 | 15 | 8.70 | |
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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