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Individual Calculations April 2008 |
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| Alfaro, William Total change: 16.05 | |   |
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| Internacional de Alajuela 2007 | Alajuela | CRC | 2007-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2302 | 2151 | 2.00 | 5 | 0.50 | 15 | 7.50 | |
|  Arias, Lemmys | f | | 2293 | ESA | 0.50 | 1 | 0.19 | 15 | 2.85 | |  Murillo, Alexis | m | | 2322 | CRC | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Davila, Carlos | m | | 2378 | NCA | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Guillen, Jose Antonio | f | | 2232 | HON | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Arias Santana, Mauricio | m | | 2285 | CRC | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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) | | | | Team Nicaragua Chess National Championship | Managua | NCA | 2007-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2177 | 2151 | 4.00 | 7 | 0.74 | 15 | 11.10 | |
| | David, Alarcon | | | 2063 | NCA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Izaba, Rodolfo | f | | 2297 | NCA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Castro, David | | | 1999 | NCA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Picado, Jorge | | | 2186 | NCA | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Rocha, Maximiliano | | | 2081 | NCA | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Davila, Carlos | m | | 2367 | NCA | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Pilarte, Rene | f | | 2246 | NCA | 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) | | | | IV International Tournament Arnoldo Tenorio in Memoriam 2007 | Granada | NCA | 2007-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 2151 | 1.50 | 3 | -0.17 | 15 | -2.55 | |
| | Pastor, Tania | | wf | 1972 | ESA | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Arias Santana, Mauricio | m | | 2285 | CRC | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Ayala, Rolando | | | 2064 | ESA | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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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