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Individual Calculations July 2009 |
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| Gurczak, John Total change: 0.00 | |   |
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| 9th Annual Sands Regency Reno - Far West Open | Reno, Nevada | USA | 2009-04-10 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2227 | 0 | 0.00 | 3 | 0.00 | 1527 | | 0.00 | |
|  Naroditsky, Daniel | f | | 2335 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Dejmek, Mark W | | | 2128 | USA | 0.00 | 1 | 0.00 | | 0.00 | |  Pupols, Viktors | | | 2217 | USA | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | 18th Annual Chicago Open - U2300 Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2155 | 0 | 3.00 | 6 | 0.00 | 2155 | | 0.00 | |
| | Szpisjak, Steven J | | | 2213 | USA | 1.00 | 1 | 0.00 | | 0.00 | | | Rios, Adrian | | | 2244 | MEX | 0.50 | 1 | 0.00 | | 0.00 | | | Lowinger, Daniel L | | | 2064 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Schill Ii, William | f | | 2239 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Huang, Vincent | | | 2051 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Caveney, Geoffrey | | | 2119 | USA | 1.00 | 1 | 0.00 | | 0.00 | |
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) | | | | The Copper State International | Mesa, Arizona | USA | 2009-05-29 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2212 | 0 | 3.50 | 9 | 0.00 | 2132 | | 0.00 | |
| | Sarkar, Justin | m | | 2410 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Mueller, Jason L | | | 2174 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Harmon-Vellotti, Luke | | | 2011 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Cardona, Liulia | | wf | 2226 | CUB | 0.50 | 1 | 0.00 | | 0.00 | | | Ding, Richard | | | 2134 | USA | 1.00 | 1 | 0.00 | | 0.00 | | | Morshedi, Ali | f | | 2347 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Adelberg, David | | | 2158 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Atoufi, Pedram | f | | 2306 | IRI | 0.50 | 1 | 0.00 | | 0.00 | | | Hortillosa, Andres | | | 2143 | USA | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | | | 2009 National Open | Las Vegas, Nevada | USA | 2009-06-05 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2288 | 0 | 0.50 | 5 | 0.00 | 1922 | | 0.00 | |
| | Yang, Darwin | f | | 2231 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Sharavdorj, Dashzegve | g | | 2422 | MGL | 0.00 | 1 | 0.00 | | 0.00 | | | Aldama, Dionisio | m | | 2458 | MEX | 0.00 | 1 | 0.00 | | 0.00 | | | Haessler, Carl A | | | 2173 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Adelberg, David | | | 2158 | USA | 0.00 | 1 | 0.00 | | 0.00 | |
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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