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Individual Calculations July 2012 |
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| Tutush, Dusan Total change: -13.50 | |   |
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| 10th NA Amateur | Skokie, Illinois | USA | 2012-05-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1874 | 1978 | 1.00 | 3 | -0.92 | 15 | -13.80 | |
|  Muradian, Sevan A | | | 1887 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | |  Bian, Alex | | | 1905 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Richmond, M Barrie | | | 1829 | USA | 0.00 | 1 | -0.70 | 15 | -10.50 | |
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) | | | | 21st Annual Chicago Open - U2300 Section | Wheeling, Illinois | USA | 2012-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2073 | 1978 | 1.50 | 5 | -0.36 | 15 | -5.40 | |
| | Bora, Safal | | | 2097 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Bowersock, Michael | | | 2043 | USA | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Cooklev, Steven | | | 2116 | USA | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Song, Edward | | | 2002 | CAN | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Perepelitsky, Philipp | | | 2107 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | 11th NACA Amateur | Skokie, Illinois | USA | 2012-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1946 | 1978 | 2.00 | 3 | 0.38 | 15 | 5.70 | |
| | Arond, Dean | | | 1800 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Szpisjak, Steven J | | | 2114 | USA | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Qazi, Rafeh R | | | 1925 | USA | 0.00 | 1 | -0.57 | 15 | -8.55 | |
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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