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Individual Calculations July 2011 |
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| Sena, Juan Total change: 4.95 | |   |
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| 2011 Marshall Chess Club FIDE Mondays | New York, New York | USA | 2011-04-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 2144 | 2.50 | 3 | 0.46 | 15 | 6.90 | |
|  Frumkin, Edward A | | | 1992 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | |  Bhatty, Karan S | | | 2042 | IND | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Hellenschmidt, Andrew | | | 1996 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | |
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) | | | | 2011Marshall CC Maypril Grand Prix | New York, New York | USA | 2011-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 2144 | 2.00 | 4 | -0.05 | 15 | -0.75 | |
| | Leotaud, Glenn C | | | 1889 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Layevskiy, Michael | | | 2042 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Bonin, Jay | m | | 2296 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Korley, Kassa | f | | 2292 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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) | | | | 2011 Marshall May Grand Prix | New York, New York | USA | 2011-05-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2302 | 2155 | 1.50 | 2 | 0.90 | 15 | 13.50 | |
| | Bonin, Jay | m | | 2310 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Sturt, Raven M | | | 2294 | USA | 1.00 | 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) | | | | The New Yorker Open - Open Section | New York, New York | USA | 2011-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2288 | 2155 | 0.50 | 2 | -0.18 | 15 | -2.70 | |
| | Herman, Matthew J | | | 2437 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Marshall, Abby S | | wf | 2138 | 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) | | | | 4th New York International | New York, New York | USA | 2011-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2254 | 2155 | 0.00 | 2 | -0.80 | 15 | -12.00 | |
| | Romanenko, Vladimir | m | | 2467 | BLR | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Colas, Joshua | | | 2040 | USA | 0.00 | 1 | -0.66 | 15 | -9.90 | |
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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