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Individual Calculations September 2011 |
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| Castaneda, Andres Total change: -9.15 | |   |
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| 16th Annual Bradley Open | Windsor Locks, Connecticut | USA | 2011-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 2151 | 1.50 | 3 | -0.36 | 15 | -5.40 | |
|  Colas, Joshua | | | 2041 | USA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Friedman, Josef I | f | | 2182 | USA | 0.50 | 1 | 0.04 | 15 | 0.60 | |  Dickson, James O | | | 1959 | USA | 0.50 | 1 | -0.25 | 15 | -3.75 | |
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) | | | | 17th Annual Northeast Open | Stamford, Connecticut | USA | 2011-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 2151 | 2.00 | 2 | 0.87 | 15 | 13.05 | |
| | Pillai, Kadhir A | | | 2013 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Fabbri, Alexander R | | | 2194 | USA | 1.00 | 1 | 0.56 | 15 | 8.40 | |
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) | | | | 41st Annual Continental Open | Sturbridge, Massachusetts | USA | 2011-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2253 | 2151 | 0.00 | 3 | -1.12 | 15 | -16.80 | |
| | Yedidia, Jonathan | m | | 2384 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Kelleher, William | f | | 2313 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Chiang, Michael | | | 2062 | USA | 0.00 | 1 | -0.62 | 15 | -9.30 | |
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) | | |
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