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Individual Calculations July 2009 |
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| Yang, Darwin Total change: 31.35 | |   |
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| 2009 TexOhma FIDE Open | Richardson, Texas | USA | 2009-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2105 | 2214 | 1.00 | 3 | -0.87 | 15 | -13.05 | |
|  Lin, Dachey | | | 1864 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | |  Stopa, Jacek | m | | 2470 | POL | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Pamatmat, Jarod | | | 1982 | USA | 0.00 | 1 | -0.79 | 15 | -11.85 | |
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 Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2339 | 2231 | 3.50 | 7 | 0.90 | 15 | 13.50 | |
| | Smith, Bryan G | m | | 2474 | USA | 1.00 | 1 | 0.80 | 15 | 12.00 | | | Kacheishvili, Giorgi | g | | 2581 | GEO | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Esserman, Marc R | | | 2391 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Sarkar, Justin | m | | 2410 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Lowinger, Daniel L | | | 2064 | USA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Enkhbat, Tegshsuren | f | | 2377 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Aaron, Deepak | | | 2077 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | |
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 - Open Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2429 | 2231 | 4.00 | 7 | 2.16 | 15 | 32.40 | |
| | Finegold, Benjamin | m | | 2497 | USA | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Smith, Bryan G | m | | 2474 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Amanov, Mesgen | g | | 2517 | TKM | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Fiedler, Brian | | | 2126 | CAN | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Bradford, Joseph M | m | | 2419 | USA | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Garcia, Gildardo J | g | | 2401 | COL | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Shabalov, Alexander | g | | 2569 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | |
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 | K | K*chg | Game |
| 2216 | 2231 | 2.00 | 4 | -0.10 | 15 | -1.50 | |
| | Terrie, Henry L | | | 2089 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Kerman, David J | | | 2155 | USA | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Matikozyan, Andranik | m | | 2470 | ARM | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Kelley, Dereque D | | | 2149 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | |
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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