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Individual Calculations May 2011 |
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| Itkis, Hana Total change: -83.85 | |   |
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| 2011 World Amateur Team & US Team East | Parsippany, New Jersery | USA | 2011-02-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2217 | 2084 | 0.50 | 2 | -0.19 | 15 | -2.85 | |
|  Shneider, Igor | f | | 2387 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | |  Hall, Timothy J | | | 2047 | USA | 0.50 | 1 | -0.05 | 15 | -0.75 | |
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) | | | | 20th Annual Eastern Class Championships | Sturbridge, Massachusetts | USA | 2011-03-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2128 | 0.50 | 4 | -1.16 | 15 | -17.40 | |
| | Zenyuk, Iryna | c | wm | 2245 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Aaron, Deepak | | | 2253 | USA | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Carter, David E | | | 2144 | USA | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Finney, Stuart S | | | 2122 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | |
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 April Grand Prix | New York, New York | USA | 2011-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2198 | 2128 | 0.00 | 1 | -0.40 | 15 | -6.00 | |
| | Pressman, Leif A | | | 2198 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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) | | | | 2nd Annual Hartford Open | Windsor Locks, Connecticut | USA | 2011-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2190 | 2128 | 1.00 | 4 | -0.79 | 15 | -11.85 | |
| | Kudrin, Sergey | g | | 2528 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Schwartz, Maxwell | | | 2090 | USA | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Smarty, Sylvester | | | 2123 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Meredith, Matthew | | | 2018 | USA | 0.00 | 1 | -0.65 | 15 | -9.75 | | | * 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) | | | | 2nd Annual Philadelphia Open | Philadelphia, Pennsylvania | USA | 2011-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 2128 | 2.50 | 9 | -3.05 | 15 | -45.75 | |
| | Richman, Jonathan | | | 2021 | USA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Pillai, Kadhir A | | | 1986 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Amanov, Mesgen | g | | 2495 | TKM | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Matamoros, Carlos | g | | 2528 * | ECU | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Chiang, Michael | | | 2064 | USA | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Harmon-Vellotti, Carl | | | 1812 | USA | 0.00 | 1 | -0.87 | 15 | -13.05 | | | Reis, Virginia L | | | 1835 | BRA | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Roy, Myriam | | | 1884 | CAN | 0.00 | 1 | -0.80 | 15 | -12.00 | | | Alvarez, Tirso | | | 1728 * | USA | 0.00 | 1 | -0.92 | 15 | -13.80 | | | * 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) | | |
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