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Individual Calculations September 2011 |
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| Tyagi, Kushan Total change: -25.50 | |   |
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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 |
| 1763 | 2113 | 3.50 | 4 | -0.05 | 30 | -1.50 | |
|  Pamatmat, Jordan J | | | 1713 * | USA | 0.50 | 1 | -0.42 | 30 | -12.60 | |  Vitkauskas, Vytaut | | | 1713 * | USA | 1.00 | 1 | 0.08 | 30 | 2.40 | | | Feldstein, Rob | | | 1843 | USA | 1.00 | 1 | 0.17 | 30 | 5.10 | | | Girardo, Christopher | | | 1782 | USA | 1.00 | 1 | 0.12 | 30 | 3.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 112th Annual US Open | Orlando, Florida | USA | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2115 | 2113 | 2.00 | 4 | -0.01 | 30 | -0.30 | |
| | Kleiman, Jake | m | | 2375 | USA | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Brown, Michael W | | | 2121 | USA | 0.00 | 1 | -0.49 | 30 | -14.70 | | | Thompson, Buddy | | | 1877 | USA | 1.00 | 1 | 0.20 | 30 | 6.00 | | | Gallegos, Paul A | | | 2086 | USA | 1.00 | 1 | 0.46 | 30 | 13.80 | |
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 Barber K-8 Championship | Orlando, Florida | USA | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2189 | 2113 | 0.00 | 2 | -0.79 | 30 | -23.70 | |
| | Shen, Arthur | f | | 2155 | USA | 0.00 | 1 | -0.44 | 30 | -13.20 | | | Gu, Christopher | | | 2222 | USA | 0.00 | 1 | -0.35 | 30 | -10.50 | |
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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