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Individual Calculations July 2009 |
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| Freyre Forest, Jorge Total change: -7.35 | |   |
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| VI Torneo Internacional Jose de Diego | Aguadilla | PUR | 2009-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 2100 | 0.50 | 2 | -0.21 | 15 | -3.15 | |
|  De Los Santos, Eddy | | | 2156 | DOM | 0.50 | 1 | 0.08 | 15 | 1.20 | |  Flaquer, Luis | | | 2261 | DOM | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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 |
| 2042 | 2100 | 1.50 | 3 | -0.20 | 15 | -3.00 | |
| | Segarra Choe, Tammy | | | 1825 | PUR | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Montanez Nazario, Roberto | | | 2055 | PUR | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Santa Torres, Juan | m | | 2245 | PUR | 0.50 | 1 | 0.19 | 15 | 2.85 | |
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 |
| 2080 | 2100 | 1.50 | 3 | -0.08 | 15 | -1.20 | |
| | Guzman, Carlos | | | 2028 | PUR | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Berrios Echevarria, Gabriel, Mf | f | | 2156 | PUR | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Montanez Nazario, Roberto | | | 2055 | PUR | 0.50 | 1 | -0.06 | 15 | -0.90 | |
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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