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Individual Calculations September 2013 |
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| Helfst, Matt D Total change: -9.75 | |   |
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| 21st Annual Southern Open | Orlando, Florida | USA | 2013-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2082 | 1973 | 2.00 | 5 | 0.20 | 15 | 3.00 | |
|  Alvarez, Ernesto | | | 2239 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | |  Ludwig, John | | | 2087 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Krienke, Makaio W | | | 2107 | USA | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Boas, Toby | | | 2192 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Krishna, Ram | | | 1787 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | |
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) | | | | 12th Annual Manhattan Open | New York, New York | USA | 2013-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 1973 | 0.00 | 4 | -0.85 | 15 | -12.75 | |
| | Goldenberg, Ryan D | | | 2271 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Velikhanli, Firuza | | wg | 2281 | AZE | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Gandhi, Ashok | | | 2088 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Petesch, Gabriel N | | | 2196 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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) | | |
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