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Individual Calculations March 2011 |
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| Resika, Nathan A Total change: -30.15 | |   |
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| 29th Annual Empire City Open | New York, New York | USA | 2010-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2234 | 0.50 | 3 | -1.16 | 15 | -17.40 | |
|  Ostrovskiy, Aleksandr A | f | | 2309 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | |  Black Jr, James A | | | 2023 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Sturt, Raven M | | | 2241 | USA | 0.00 | 1 | -0.49 | 15 | -7.35 | |
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) | | | | 43rd Annual Liberty Bell - U2300 Section | Philadelphia, Pennsylvania | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 2234 | 3.50 | 6 | -1.20 | 15 | -18.00 | |
| | Regam, Jessica | | | 1834 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Terrie, Henry L | | | 2078 | USA | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Sivakumar, Kavinay | | | 2043 | USA | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Yagiz, Bora | | | 1896 | USA | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Miller, Jake S | | | 1990 | USA | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Yeliseyev, Igor | | | 2135 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | | | * 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) | | | | 2011 Marshall January Grand Prix | New York, New York | USA | 2011-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2123 | 2234 | 1.00 | 1 | 0.35 | 15 | 5.25 | |
| | Richman, Jonathan | | | 2123 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | |
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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