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Individual Calculations October 2017 |
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| Porter, John Total change: -34.00 | |   |
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| 2017 Illinois Open State Championship | Northbrook, Illinois | USA | 2017-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1743 | 1746 | 0.50 | 3 | -1.01 | 40 | -40.40 | |
|  Bale, Leslie | | | 1730 | USA | 0.50 | 1 | -0.02 | 40 | -0.80 | |  Zhang, Edward | | | 1776 | USA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Venkat, Abhyudhaya | | | 1722 | USA | 0.00 | 1 | -0.53 | 40 | -21.20 | |
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) | | | | Downers Grove Chess Club Invitational | Downers Grove, Illinois | USA | 2017-09-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1849 | 1746 | 3.50 | 9 | 0.16 | 40 | 6.40 | |
| | Shoykhet, Benjamin | | | 1867 | USA | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Dugovic, Daniel R | | | 2014 | USA | 1.00 | 1 | 0.83 | 40 | 33.20 | | | Geannopoulos, Nicholas | | | 1611 | USA | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Meduri, Aakaash | | | 2056 | USA | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Mathur, Rithwik | | | 1885 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Brock, William | | | 1952 | USA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Bungo, D Gregory | | | 1971 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Matura, Max | | | 1501 | USA | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Wang, Emma K | | | 1786 | USA | 0.00 | 1 | -0.44 | 40 | -17.60 | |
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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