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Individual Calculations September 2011 |
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| Pamatmat, Jarod M Total change: -10.80 | |   |
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| 2011 FIDE Continental America's Amateur Chess Championship | Rosemont, Illinois | USA | 2011-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 2136 | 2.00 | 4 | -0.65 | 15 | -9.75 | |
|  Friedman, David M | | | 1944 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Hortillosa, Andres | | | 1974 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Amarasinghe, Prashantha | | | 2025 | SRI | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Heung, Christopher | | | 2109 | 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) | | | | 2011 US Junior Open - U21 Section | Houston, Texas | USA | 2011-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2109 | 2136 | 1.00 | 2 | -0.07 | 15 | -1.05 | |
| | Shao, Bob S | | | 2069 | USA | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Chakraborty, Dipro | | | 2148 | USA | 0.50 | 1 | 0.02 | 15 | 0.30 | |
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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