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Individual Calculations September 2011 |
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| West, James R Total change: -21.00 | |   |
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| 2011 Marshall June Grand Prix | New York, New York | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2218 | 2150 | 1.00 | 3 | -0.29 | 15 | -4.35 | |
|  Rohde, Michael A | g | | 2465 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | |  Polyakin, Vladimir | | | 2097 | USA | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Fitzko, Mitchell | | | 2092 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | |
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) | | | | 2011 Marshall July Grand Prix | New York, New York | USA | 2011-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1985 | 2134 | 0.50 | 3 | -1.59 | 15 | -23.85 | |
| | Moon, Kyle | | | 2054 | USA | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Paciulli, Frank R | | | 1944 | USA | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Frumkin, Edward A | | | 1958 | USA | 0.00 | 1 | -0.73 | 15 | -10.95 | |
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) | | | | 2011 July FIDE Monday | New York, New York | USA | 2011-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2136 | 2134 | 3.00 | 5 | 0.52 | 15 | 7.80 | |
| | Farber, Nelson M | | | 1982 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Bhatty, Karan S | | | 2066 | IND | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Treger, Yefim | | | 2205 | USA | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Bonin, Jay | m | | 2323 | USA | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Katz, Benjamin | | | 2104 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | |
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) | | | | 2011 Marshall August Grand Prix | New York, New York | USA | 2011-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2128 | 2134 | 2.00 | 4 | -0.04 | 15 | -0.60 | |
| | Kopiecki, Edward P | | | 2031 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Moon, Kyle | | | 2054 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Bonin, Jay | m | | 2323 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Black Jr, James A | | | 2105 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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) | | |
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