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Individual Calculations July 2009 |
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| Whaley, Davis M Total change: -68.00 | |   |
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| 47th Cincinnati Open | Cincinnati, Ohio | USA | 2009-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2017 | 2257 | 1.50 | 3 | -0.84 | 25 | -21.00 | |
|  Hilton, Jonathan | | | 2194 | USA | 0.00 | 1 | -0.59 | 25 | -14.75 | |  Hollinberger, Drew | | | 1907 | USA | 0.50 | 1 | -0.39 | 25 | -9.75 | | | Amarasinghe, Prashanthe | | | 1949 | SRI | 1.00 | 1 | 0.14 | 25 | 3.50 | |
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) | | | | 18th Annual Chicago Open - U2300 Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1991 | 2257 | 3.00 | 6 | -1.88 | 25 | -47.00 | |
| | Mattson, Dane M | | | 2061 | USA | 0.50 | 1 | -0.25 | 25 | -6.25 | | | Airapetian, Chouchanik | | wf | 2114 | USA | 0.50 | 1 | -0.19 | 25 | -4.75 | | | Amarasinghe, Prashantha N | | | 1930 | SRI | 0.50 | 1 | -0.37 | 25 | -9.25 | | | Jayakumar, Adarsh | | | 1917 | IND | 0.00 | 1 | -0.88 | 25 | -22.00 | | | Hollinberger, Drew | | | 1917 | USA | 1.00 | 1 | 0.12 | 25 | 3.00 | | | Brock, William H | | | 2009 | USA | 0.50 | 1 | -0.31 | 25 | -7.75 | |
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) | | |
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