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Individual Calculations May 2012 |
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| Tutush, Dusan Total change: -1.65 | |   |
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| 8th North American Amateur Open | Skokie, Illinois | USA | 2012-03-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2256 | 1980 | 0.50 | 1 | 0.33 | 15 | 4.95 | |
|  Boor, Carl Brandon | f | | 2256 | USA | 0.50 | 1 | 0.33 | 15 | 4.95 | |
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) | | | | 9th North American Amateur Open - 2nd Scott Silvernan Memorial | Skokie, Illinois | USA | 2012-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1816 | 1980 | 1.00 | 2 | -0.44 | 15 | -6.60 | |
| | Arond, Dean | | | 1790 | USA | 0.50 | 1 | -0.25 | 15 | -3.75 | |  Richmond, M. Barrie | | | 1841 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | |
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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