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Individual Calculations November 2009 |
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| Harris, Ian Total change: -2.30 | |   |
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| UMBC Championship | Baltimore, Maryland | USA | 2009-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2055 | 2097 | 1.50 | 3 | -0.17 | 25 | -4.25 | |
|  Selzler, Ricky | | | 2193 | USA | 0.50 | 1 | 0.13 | 25 | 3.25 | |  Schoch, Ian David | | | 2013 | USA | 0.00 | 1 | -0.62 | 25 | -15.50 | | | Shapiro, Jonathan | | | 1960 | USA | 1.00 | 1 | 0.32 | 25 | 8.00 | |
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 | | 49th Maryland Open | Rockville, Maryland | USA | 2009-10-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2193 | 2097 | 0.50 | 1 | 0.13 | 15 | 1.95 | |
| | Selzler, Richard | | | 2193 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | |
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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