Individual Calculations July 2009
 Adelberg, David  Total change: 16.85  Rating chartPersonal card
 9th Annual Sands Regency Reno - Far West Open Reno, Nevada USA 2009-04-10
RcRownchangeKK*chgGame
 2345 2158 0.00 2 -0.52 25 -13.00 
  Pruess, David m2400 USA0.001-0.2025-5.00 
  Collyer, Curt D 2289 USA0.001-0.3225-8.00 

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)
 
 2009 Lina Grumette Memorial Day Classic Los Angeles, California USA 2009-05-23
RcRownchangeKK*chgGame
 2175 2158 3.00 5 0.60 25 15.00 
  Higa, Randy K 1988 USA1.0010.28257.00 
  Bryant, John Daniel 2292 USA0.001-0.3225-8.00 
  Pilnick, Carl 2126 USA0.501-0.0425-1.00 
  Yee, Michael Anthony 2078 USA1.0010.39259.75 
  Peters, Jack m2390 USA0.5010.29257.25 

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)
 
NOTE: K factor changed
 The Copper State International Mesa, Arizona USA 2009-05-29
RcRownchangeKK*chgGame
 2247 2158 5.00 9 1.47 15 22.05 
  Ippolito, Dean J m2443 USA0.001-0.1615-2.40 
  Harmon-Vellotti, Luke 2011 USA1.0010.30154.50 
  Hansen, Eric f2398 CAN0.001-0.2015-3.00 
  Pruess, David m2400 USA0.5010.30154.50 
  Atoufi, Pedram f2306 IRI0.001-0.3015-4.50 
  Rowley Ii, Robert f2234 USA0.5010.10151.50 
  Hortillosa, Andres 2143 USA1.0010.48157.20 
  Mackinnon, Keith 2145 CAN1.0010.48157.20 
  Haskel, Jeffrey 2140 USA1.0010.47157.05 

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)
 
NOTE: K factor changed
 2009 National Open Las Vegas, Nevada USA 2009-06-05
RcRownchangeKK*chgGame
 2294 2158 0.50 3 -0.48 15 -7.20 
  Bradford, Joseph M m2419 USA0.001-0.1815-2.70 
  Zepeda, Lorena M wm2179 ESA0.5010.03150.45 
  Small, Gregg H 2285 USA0.001-0.3315-4.95 

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)
 

 

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