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Individual Calculations July 2011 |
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| Helfst, Matt Total change: 35.85 | |   |
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| 18th Space Coast Open | Cocoa Beach, Florida | USA | 2011-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2108 | 1924 | 0.00 | 2 | -0.52 | 15 | -7.80 | |
|  Gutierrez, Paloma | | wm | 2119 | ESP | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Santalla, Andres | | | 2096 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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) | | | | 20th Annual Chicago Open | Wheeling, Illinois | USA | 2011-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 1935 | 3.00 | 6 | 1.73 | 15 | 25.95 | |
| | Murthy, Pappu | | | 2112 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | |  Smarty, Sylvester | | | 2107 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Hoover, Nathan E | | | 2153 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Greanias, Steven D | | | 2168 | USA | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Abrahamyan, Tatev | | wf | 2335 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Whaley, Davis M | | | 2160 | USA | 1.00 | 1 | 0.78 | 15 | 11.70 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 National Open - Open Section | Las Vegas, Nevada | USA | 2011-06-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2174 | 1935 | 2.00 | 4 | 1.18 | 15 | 17.70 | |
| | Pearson, Michael I | | | 2198 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Kerman, David J | | | 2139 | USA | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Kavutskiy, Konstantin | | | 2190 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Hendrickson, Nolan | | | 2168 | USA | 1.00 | 1 | 0.79 | 15 | 11.85 | |
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) | | |
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