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Individual Calculations June 2015 |
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| Brodsky, David Total change: 2.60 | |   |
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| 2015 May UTB IM-norm Tournament | Brownsville, Texas | USA | 2015-05-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2250 | 2276 | 4.50 | 9 | -0.22 | 20 | -4.40 | |
|  Cortez, Armando | | | 2128 | MEX | 1.00 | 1 | 0.30 | 20 | 6.00 | |  Santarius, Erik F | | | 2307 | USA | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Guerrero Rodriguez, Alejandra | | wm | 2014 | MEX | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Bodek, Michael H | f | | 2414 | USA | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Torres Rosas, Luis Carlos | m | | 2343 | MEX | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Breckenridge, Steven James | f | | 2331 | USA | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Ynojosa Aponte, Felix Jose | m | | 2417 | VEN | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Serna, Jeffrey M | | | 1979 | USA | 0.00 | 1 | -0.85 | 20 | -17.00 | | | Almeida Saenz, Alfonso | m | | 2321 | MEX | 0.50 | 1 | 0.06 | 20 | 1.20 | |
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) | | | | 84th Massachusetts Open | Marlboro, Massachusetts | USA | 2015-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2140 | 2276 | 3.00 | 4 | 0.35 | 20 | 7.00 | |
| | Yip, Carissa | | | 1952 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Smirnov, William J | | | 2008 | USA | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Khater, Sherif A | | | 2076 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Ivanov, Alexander | g | | 2523 | USA | 0.50 | 1 | 0.31 | 20 | 6.20 | |
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) | | |
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