Individual Calculations April 2008
 Valdes, Leonardo  Total change: 7.70  Rating chartPersonal card
 Zonal 2.3 Santo Domingo DOM 2007-05-31
RcRownchangeKK*chgGame
 2365 2401 5.50 13 -1.58 10 -15.80 
  Bruzon, Lazaro g2620 CUB0.001-0.2210-2.20 
  Iturrizaga, Eduardo m2398 VEN1.0010.50105.00 
  Mendoza, Rafael f2390 COL0.501-0.0210-0.20 
  Dominguez, Jose M. m2330 DOM1.0010.40104.00 
  Dominguez, Leinier g2678 CUB0.001-0.1710-1.70 
  Gonzalez, Juan Carlos g2537 MEX0.001-0.3210-3.20 
  Boada, Wiston 2185 VEN0.001-0.7810-7.80 
  Leon Hoyos, Manuel m2454 MEX0.5010.07100.70 
  Vittorino, Carlo f2206 COL0.501-0.2510-2.50 
  De Los Santos, Eddy 2174 DOM0.001-0.7910-7.90 
  Trujillo, Pablo 2055 VEN0.501-0.3910-3.90 
  Farley, Terry 2284 BAR1.0010.34103.40 
  Gonzalez, Bernal m2434 CRC0.5010.05100.50 

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)
 
 Internacional de Alajuela 2007 Alajuela CRC 2007-07-11
RcRownchangeKK*chgGame
 2289 2401 5.00 7 0.58 10 5.80 
  Rocha, Maximiliano 2081 NCA1.0010.13101.30 
  Ramos, Efren Andres 2172 NCA1.0010.21102.10 
  Garcia, Sergio 2087 GUA1.0010.14101.40 
  Mitkov, Nikola g2535 MKD0.001-0.3210-3.20 
  Arias Santana, Mauricio m2285 CRC1.0010.34103.40 
  Perelshteyn, Eugene g2540 USA0.5010.19101.90 
  Murillo, Alexis m2322 CRC0.501-0.1110-1.10 

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)
 
 Campeonato Centroamericano Masculino 2007 San Salvador ESA 2007-10-23
RcRownchangeKK*chgGame
 2245 2401 7.50 9 1.26 10 12.60 
  Iraheta, Rafael 2051 ESA1.0010.11101.10 
  Carvajal, Jonathan 2142 CRC1.0010.18101.80 
  Chavez, Ricardo f2195 ESA1.0010.24102.40 
  Gonzalez, Bernal m2434 CRC0.5010.05100.50 
  Baules, Jorge f2291 PAN1.0010.35103.50 
  Leyva, Hector m2409 ESA1.0010.51105.10 
  Urbina, Ricardo m2272 HON0.501-0.1710-1.70 
  Lorenzana, Wilson f2230 GUA1.0010.27102.70 
  Martinez, Nelson f2177 ESA0.501-0.2810-2.80 

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)
 
 IV International Tournament Arnoldo Tenorio in Memoriam 2007 Granada NCA 2007-12-27
RcRownchangeKK*chgGame
 2194 2401 5.00 6 0.51 10 5.10 
  Blanco, David E. 2051 ESA1.0010.11101.10 
  Carvajal, Jonathan 2142 CRC0.501-0.3210-3.20 
  Vega, Emerson 2133 NCA1.0010.17101.70 
  Gonzalez, Bernal m2434 CRC0.5010.05100.50 
  Ruiz Blais, Sebastian 2121 CRC1.0010.16101.60 
  Arias Santana, Mauricio m2285 CRC1.0010.34103.40 

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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