Individual Calculations September 2009
 Adu, Oladapo O  Total change: -18.90  Rating chartPersonal card
 2009 Chesapeake Open Baltimore, Maryland USA 2009-06-19
RcRownchangeKK*chgGame
 2216 2294 1.00 3 -0.78 15 -11.70 
  Pinkerton, James C 2049 USA0.001-0.8015-12.00 
  Kaufman, Lawrence g2397 USA0.001-0.3615-5.40 
  Dougherty, Michael f2203 CAN1.0010.38155.70 

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)
 
 37th Annual World Open - Under 2400 Section Philadelphia, Pennsylvania USA 2009-06-29
RcRownchangeKK*chgGame
 2209 2294 6.00 9 0.50 15 7.50 
  Filipovich, David 2181 CAN1.0010.35155.25 
  Erdei, Andras A 2159 HUN1.0010.32154.80 
  Figler, Ilye f2319 USA0.001-0.4715-7.05 
  Iwu, Okechukwu A 2198 USA1.0010.37155.55 
  Tae, Patrick John 2092 USA1.0010.24153.60 
  Vazquez, Raul 2107 PUR0.001-0.7415-11.10 
  Fernandez, Alejandro 2227 MEX1.0010.41156.15 
  Young, Angelo m2350 PHI0.001-0.4215-6.30 
  Acor, Corey 2248 USA1.0010.44156.60 

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)
 
 36th LPO Winston-Salem, North Carolina USA 2009-07-24
RcRownchangeKK*chgGame
 2174 2276 0.00 2 -1.28 15 -19.20 
  Mabe, Chris J 2214 USA0.001-0.5915-8.85 
  Wheeler, Jerry T f2134 USA0.001-0.6915-10.35 

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)
 
 Caribbean Chess Carnival 2009 - Open Port of Spain TRI 2009-08-04
RcRownchangeKK*chgGame
 2211 2276 5.50 9 0.30 15 4.50 
  Lee, Cecil 1956 TRI1.0010.13151.95 
  Teran Abreu, Lisyender 2121 VEN1.0010.29154.35 
  Denny, Kevin m2351 BAR1.0010.60159.00 
  Pecorelli Garcia, Humberto m2403 CUB0.001-0.3315-4.95 
  Matoewi, Roger c2159 SUR1.0010.34155.10 
  Kadimova, Ilaha wg2331 AZE0.5010.08151.20 
  Lebredo Zaragoitia, Gerardo m2250 CUB0.001-0.5415-8.10 
  Ostos, Julio m2306 VEN0.001-0.4615-6.90 
  Winter-Roach, Alex 2026 TRI1.0010.19152.85 

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)
 

 

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