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Individual Calculations May 2011 |
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| Margiotta, Jason J Total change: -10.50 | |   |
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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 |
| 1980 | 1992 | 1.00 | 1 | 0.48 | 15 | 7.20 | |
|  Antler, Arthur S | | | 1980 | USA | 1.00 | 1 | 0.48 | 15 | 7.20 | |
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 New York March Open | New York, New York | USA | 2011-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 1994 | 1.00 | 2 | 0.29 | 15 | 4.35 | |
|  Pressman, Leif A | | | 2198 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Hinson, Miles | | | 2015 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | |
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 |
| 2296 | 1994 | 0.00 | 1 | -0.15 | 15 | -2.25 | |
| | Bonin, Jay | m | | 2296 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | |
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) | | | | 2nd Annual Philadelphia Open | Philadelphia, Pennsylvania | USA | 2011-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 1994 | 1.00 | 5 | -1.32 | 15 | -19.80 | |
| | Shen, Arthur | f | | 2132 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Yeager, Daniel A | f | | 2289 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Dong, Alice | | | 1793 | USA | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Leve, Nitai D | | | 2156 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Chiang, Jonathan | | | 1744 | USA | 0.50 | 1 | -0.31 | 15 | -4.65 | |
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) | | |
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