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Individual Calculations September 2009 |
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| Dejmek, Mark W Total change: -7.65 | |   |
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| Houston Open | Houston, Texas | USA | 2009-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2315 | 2118 | 0.50 | 2 | -0.05 | 15 | -0.75 | |
|  Zivanic, Marko | m | | 2471 | SRB | 0.00 | 1 | -0.11 | 15 | -1.65 | |  De Jesus, Jeffrey | | | 2158 | USA | 0.50 | 1 | 0.06 | 15 | 0.90 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2016 | 2118 | 2.00 | 4 | -0.46 | 15 | -6.90 | |
| | Pabon, Tony | | | 1718 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Haring, Ruth Inez | | wm | 1978 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Boor, Carl B | f | | 2350 | USA | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Harmon-Vellotti, Luke | | | 2017 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | | | * 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) | | |
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