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Individual Calculations September 2009 |
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| Montanez Nazario, Roberto Total change: 24.30 | |   |
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| Puerto Rico National Championship 2009 | Caguas | PUR | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2161 | 2081 | 4.50 | 9 | 0.98 | 15 | 14.70 | |
|  Ovalle Burgos, Ramon | | | 2148 | PUR | 1.00 | 1 | 0.59 | 15 | 8.85 | |  Davila Vega, Juan R. | | | 2176 | PUR | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Santana Alvarado, Miguel | | | 2159 | PUR | 0.00 | 1 | -0.39 | 15 | -5.85 | | | Bermudez Adams, William | c | | 2149 | PUR | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Sotelo Kohama, Daniel | | | 2173 | PUR | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Santa Torres, Juan M. | m | | 2229 | PUR | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Vazquez Reyes, Raul | | | 2147 | PUR | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Berrios Echevarria, Gabriel | f | | 2161 | PUR | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Rodriguez Santiago, Jaime | | | 2105 | PUR | 0.00 | 1 | -0.47 | 15 | -7.05 | |
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) | | | | Torneo Abierto de Arecibo | Arecibo | PUR | 2009-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2117 | 2081 | 2.00 | 3 | 0.64 | 15 | 9.60 | |
| | Segarra Choe, Tammy | | | 1897 | PUR | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Montalvo Rosario, Alejandro | m | | 2278 | PUR | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Davila Vega, Juan R. | | | 2176 | PUR | 0.50 | 1 | 0.13 | 15 | 1.95 | |
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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