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Individual Calculations May 2012 |
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| Wallach, Kenneth T Total change: 7.05 | |   |
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| 9th North American Amateur Open - 2nd Scott Silvernan Memorial | Skokie, Illinois | USA | 2012-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2020 | 2168 | 2.50 | 3 | 0.47 | 15 | 7.05 | |
|  Baumgartner, Chris | | | 1854 | USA | 1.00 | 1 | 0.14 | 15 | 2.10 | |  Cen, Kent Y | | | 2019 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Chow, Albert C | f | | 2186 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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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