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Individual Calculations November 2011 |
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| Szpisjak, Steven J Total change: -24.30 | |   |
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| 7th North American Amateur Open | Skokie, Illinois | USA | 2011-09-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1894 | 2126 | 2.50 | 3 | 0.16 | 15 | 2.40 | |
|  Wood, Christopher | | | 1998 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | |  Baumgartner, Chris | | | 1870 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Girardo, Christopher | | | 1813 | USA | 1.00 | 1 | 0.14 | 15 | 2.10 | |
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) | | | | 20th Annual Midwest Class Championships | Wheeling, Illinois | USA | 2011-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2044 | 2126 | 0.00 | 3 | -1.78 | 15 | -26.70 | |
| | Ni, Viktorija | | wm | 2214 | LAT | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Gurczak, John | | | 2100 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Liang, Awonder | | | 1818 | USA | 0.00 | 1 | -0.86 | 15 | -12.90 | |
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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