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Individual Calculations March 2010 |
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| Adu, Oladapo Oluto Total change: 4.35 | |   |
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| 36th Annual Eastern Open | Washington DC | USA | 2009-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2248 | 2234 | 5.00 | 8 | 1.13 | 15 | 16.95 | |
|  Dai, Yang | | | 1989 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | |  Strenzwilk, Denis | | | 2038 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Vigorito, David | m | | 2411 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Lenderman, Alex | m | | 2546 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Sherman, David | | | 2121 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Macias Murillo, Bryan | f | | 2375 | ECU | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Minear, Peter | | | 2242 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Zenyuk, Iryna | c | wm | 2265 | 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) | | | | 42nd Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2010-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2045 | 2248 | 2.00 | 4 | -1.03 | 15 | -15.45 | |
| | Vilenchuk, Michael | | | 2084 | USA | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Hua, David | | | 1949 | USA | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Smarty, Sylvester | | | 2062 | USA | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Guevara, Robert N | | | 2085 | USA | 0.50 | 1 | -0.22 | 15 | -3.30 | |
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) | | | | Springfield Open | Springfield, Virginia | USA | 2010-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2226 | 2248 | 0.00 | 1 | -0.53 | 15 | -7.95 | |
| | Shibut, Macon A | f | | 2226 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | |
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) | | | | 2010 Kingstowne Chess Festival | Alexandria, Virginia | USA | 2010-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 2248 | 2.00 | 2 | 0.72 | 15 | 10.80 | |
| | Samuelson, Andrew | | | 2212 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Grinberg, Matthew | | | 2074 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | |
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) | | |
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