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Individual Calculations September 2011 |
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| Margiotta, Jason J Total change: -6.75 | |   |
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| 2011 Marshall June Grand Prix | New York, New York | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2175 | 1984 | 0.00 | 1 | -0.25 | 15 | -3.75 | |
|  Balasubramanian, Adithya | | | 2175 | IND | 0.00 | 1 | -0.25 | 15 | -3.75 | |
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) | | | | 39th Annual World Open - U2200 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2138 | 1984 | 0.50 | 3 | -0.41 | 15 | -6.15 | |
| | Miller, Jake S | | | 2042 | USA | 0.50 | 1 | 0.08 | 15 | 1.20 | |  Perez-Billinghurst, Ricardo | | | 2132 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Yakobashvili, Roland | | | 2240 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | |
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 August Grand Prix | New York, New York | USA | 2011-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2214 | 1990 | 0.50 | 2 | 0.04 | 15 | 0.60 | |
| | Bonin, Jay | m | | 2323 | USA | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Black Jr, James A | | | 2105 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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 Manhattan Open - U2300 Section | New York, New York | USA | 2011-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2088 | 1990 | 2.00 | 5 | 0.17 | 15 | 2.55 | |
| | Barsky, Sam A | | | 2044 | USA | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Higgins, Sean | | | 2162 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Hendrickson, Nolan | | | 2135 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Schut, Donna | | | 2074 | NED | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Finneran, Michael | | | 2023 | USA | 0.00 | 1 | -0.45 | 15 | -6.75 | |
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) | | |
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