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Individual Calculations July 2010 |
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| Gurczak, John Total change: 42.45 | |   |
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| 19th Annual Chicago Open | Wheeling, Illinois | USA | 2010-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2222 | 2069 | 2.50 | 7 | 0.38 | 15 | 5.70 | |
|  Kleiman, Jake | f | | 2353 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | |  Wright, William B | | | 2174 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Gardner, Justin L | | | 2174 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Shankar, Gauri | f | | 2289 | IND | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Michaelides, Matthew | | | 2157 | USA | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Betaneli, Alex | f | | 2260 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Ruiz Gonzalez, Guillermo | f | | 2146 | MEX | 1.00 | 1 | 0.61 | 15 | 9.15 | |
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) | | | | 2010 Copper StaTe International Swiss | Mesa, AZ | USA | 2010-06-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2308 | 2069 | 4.50 | 9 | 2.45 | 15 | 36.75 | |
| | Ginsburg, Mark | m | | 2393 | USA | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Altounian, Levon | m | | 2454 | USA | 0.50 | 1 | 0.41 | 15 | 6.15 | | | Pruess, David | m | | 2361 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Haskel, Jeffrey | | | 2244 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Ristovic, Nenad | f | | 2194 | CAN | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Yermolinsky, Alex | g | | 2469 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Boskovic, Drasko | m | | 2450 | SRB | 0.50 | 1 | 0.41 | 15 | 6.15 | | | Mateer, Amanda | | | 2072 | USA | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Chakraborty, Dipro | | | 2135 | USA | 1.00 | 1 | 0.59 | 15 | 8.85 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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