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Individual Calculations September 2011 |
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| Fortis, Jonathan Total change: 28.80 | |   |
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| Puerto Rico National Championship 2011 | San Juan | PUR | 2011-06-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1983 | 1856 | 2.00 | 3 | 0.95 | 30 | 28.50 | |
|  Davila Vega, Juan R | | | 2186 | PUR | 0.00 | 1 | -0.12 | 30 | -3.60 | |  Rios Maldonado, Javier | | | 1743 | PUR | 1.00 | 1 | 0.35 | 30 | 10.50 | | | Rabell, Narciso | | | 2020 | PUR | 1.00 | 1 | 0.72 | 30 | 21.60 | |
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) | | | | Abierto de CABA | Bayamon | PUR | 2011-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 1856 | 0.50 | 3 | 0.01 | 30 | 0.30 | |
| | Davila Vega, Juan R | | | 2186 | PUR | 0.50 | 1 | 0.38 | 30 | 11.40 | | | Vazquez Reyes, Raul | c | | 2231 | PUR | 0.00 | 1 | -0.09 | 30 | -2.70 | | | Rabell Mendez, Narciso | | | 2020 | PUR | 0.00 | 1 | -0.28 | 30 | -8.40 | |
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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