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Individual Calculations September 2009 |
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| Hughes, Tyler B Total change: 2.40 | |   |
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| 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2230 | 4.50 | 7 | 0.69 | 15 | 10.35 | |
|  Gershenov, Ben | | | 1987 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | |  Zierk, Steven C | | | 2296 | USA | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Figler, Ilye | f | | 2319 | USA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Barnett, Alexander | | | 2239 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Rogers, Norman | f | | 2240 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Iwu, Okechukwu A | | | 2198 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Aaron, Deepak | | | 2077 | USA | 1.00 | 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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2272 | 2278 | 1.00 | 3 | -0.53 | 15 | -7.95 | |
| | Xing, Kerry | | | 2219 | USA | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Ippolito, Dean J | m | | 2455 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Rosen, Eric S | | | 2141 | USA | 0.00 | 1 | -0.68 | 15 | -10.20 | |
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) | | |
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