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Individual Calculations January 2012 |
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| Treger, Yefim Total change: -8.40 | |   |
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| 2011 Marshall Chess Club Championship | New York, New York | USA | 2011-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2217 | 2191 | 4.50 | 8 | 0.75 | 15 | 11.25 | |
|  Vulis, Daniel | | | 2080 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | |  Kekelidze, Mikheil | g | | 2459 | GEO | 1.00 | 1 | 0.83 | 15 | 12.45 | | | Ostrovskiy, Aleksandr | f | | 2308 | USA | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Wu, Christopher | | | 2059 | USA | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Pressman, Leif A | f | | 2284 | USA | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Bonin, Jay | m | | 2325 | USA | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Rozman, Levy | | | 2089 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Black Jr, James A | | | 2132 | USA | 0.00 | 1 | -0.58 | 15 | -8.70 | |
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 November Grand Prix | New York, New York | USA | 2011-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2122 | 2202 | 1.00 | 3 | -0.81 | 15 | -12.15 | |
| | Layevskiy, Michael | | | 1988 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Bonin, Jay | m | | 2314 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Fabbri, Alexander | | | 2063 | USA | 0.00 | 1 | -0.69 | 15 | -10.35 | |
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) | | | | 2011 MCC FIDE Monday - November-December | New York, New York USA | USA | 2011-11-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2131 | 2202 | 2.50 | 5 | -0.47 | 15 | -7.05 | |
| | Frumkin, Edward A | | | 1965 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Evans, Cory A | | | 2168 | USA | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Hoffmann, Asa | f | | 2288 | USA | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Resika, Nathan | f | | 2146 | USA | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Katz, Benjamin | | | 2088 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | |
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) | | | | 42nd Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2011-11-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2196 | 2202 | 2.50 | 5 | -0.05 | 15 | -0.75 | |
| | Sells, Philip G | | | 1909 | USA | 0.50 | 1 | -0.35 | 15 | -5.25 | | | Mandizha, Farai | f | | 2404 | ZIM | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Paulina, David | | | 2044 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Krush, Irina | m | wg | 2476 | USA | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Drake, Jason M | | | 2145 | USA | 1.00 | 1 | 0.42 | 15 | 6.30 | |
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) | | | | 2011 Marshall December Grand Prix | New York, New York | USA | 2011-12-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2018 | 2202 | 1.50 | 2 | 0.02 | 15 | 0.30 | |
| | Margiotta, Jason J | | | 1988 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Parhami, Payam | | | 2048 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | |
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) | | |
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