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Individual Calculations July 2009 |
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| Madison, Jeremy M Total change: -13.35 | |   |
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| Iowa Closed Chess championship | Marshalltown, Iowa | USA | 2009-04-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 1981 | 1.00 | 5 | -0.69 | 25 | -17.25 | |
|  Keating, Robert F | | | 2063 | USA | 0.00 | 1 | -0.39 | 25 | -9.75 | |  Karagianis, Petros | | | 2194 | USA | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Anzis, Matt | | | 2024 | USA | 1.00 | 1 | 0.56 | 25 | 14.00 | | | Eichhorn, George S | | | 2084 | USA | 0.00 | 1 | -0.36 | 25 | -9.00 | | | Mc Entee, Tim R | | | 2156 | USA | 0.00 | 1 | -0.27 | 25 | -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) | | | NOTE: K factor changed | | 18th Annual Chicago Open - Open Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2187 | 1981 | 1.50 | 5 | 0.26 | 15 | 3.90 | |
| | Lein, Anatoly Y | g | | 2328 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Sobo, Henry C | | | 2074 | USA | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Fiedler, Brian | | | 2126 | CAN | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Homa, Seth | | | 2266 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Rosen, Eric S | | | 2142 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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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