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Individual Calculations January 2012 |
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| Needham, Bryan Total change: -2.70 | |   |
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| Final Campeonato Nacional Absoluto 2011 | San Jose | CRC | 2011-10-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2210 | 2031 | 3.50 | 11 | 0.36 | 15 | 5.40 | |
|  Duran Vega, Sergio | | | 2211 | CRC | 0.00 | 1 | -0.26 | 15 | -3.90 | |  Valdes, Leonardo | m | | 2387 | CRC | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Bermudez Munoz, Alexander | | | 2064 | CRC | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Munoz, Carolina | | wm | 2017 | CRC | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Castillo, Rommel | | | 2129 | NCA | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Alfaro Rojas, Alfonso | | | 2239 | CRC | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Gonzalez, Bernal | m | | 2431 * | CRC | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Murillo, Alexis | m | | 2301 | CRC | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Cabrera, Marco Antonio | | | 2154 | CRC | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Arias Santana, Mauricio | m | | 2327 | CRC | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Minero Pineda, Carlos | | | 2052 | CRC | 1.00 | 1 | 0.53 | 15 | 7.95 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 Metropolitano | San Jose | CRC | 2011-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 2031 | 2.50 | 5 | -0.54 | 15 | -8.10 | |
| | Arroyo Valverde, Luis | | | 1937 | CRC | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Murillo Tsijli, Alexis | m | | 2301 | CRC | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Aguilar Pina, Luis | | | 1954 | CRC | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Loria, Geovanny | | | 1751 | CRC | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Chavez, Gabriel | | | 1796 | CRC | 0.50 | 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) | | |
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