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Individual Calculations August 2012 |
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| Williams, Justus D Total change: 18.00 | |   |
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| 40th Annual World Open - Open Section | Philadelphia, Pennsylvania | USA | 2012-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2347 | 2216 | 4.50 | 9 | 1.43 | 15 | 21.45 | |
|  Liu, Qingnan | m | | 2509 | CHN | 0.50 | 1 | 0.35 | 15 | 5.25 | |  Batchuluun, Tsegmed | g | | 2501 | MGL | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Liang, Adream | | | 1873 | USA | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Bercys, Salvijus | m | | 2429 | USA | 1.00 | 1 | 0.77 | 15 | 11.55 | | | Smirin, Ilya | g | | 2616 * | ISR | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Garcia, Gildardo | g | | 2418 | COL | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Jayakumar, Adarsh | | | 2300 | USA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Lebovitz, Andrew E | | | 2061 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Battaglini, Gabriel | m | | 2419 | FRA | 1.00 | 1 | 0.76 | 15 | 11.40 | | | * 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) | | | | 2012 US Junior Closed - Group B | St Louis, Missouri | USA | 2012-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2340 | 2216 | 3.00 | 7 | 0.58 | 15 | 8.70 | |
| | Perez, Robert | | | 2334 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Troff, Kayden W | f | | 2271 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Sturt, Raven M | | | 2248 | USA | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Cao, Kevin Y | | | 2184 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Arnold, Marc Tyler | m | | 2529 | USA | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Naroditsky, Daniel | m | | 2486 | USA | 0.50 | 1 | 0.33 | 15 | 4.95 | | | Rosen, Eric S | f | | 2328 | USA | 1.00 | 1 | 0.65 | 15 | 9.75 | |
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) | | | | 2012 US Cadet | Rockville, Maryland | USA | 2012-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2237 | 2216 | 2.50 | 7 | -0.81 | 15 | -12.15 | |
| | Bodek, Michael H | f | | 2325 | USA | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Black Jr, James A | | | 2232 | USA | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Colas, Joshua | | | 2126 | USA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Hua, David | | | 2216 | USA | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Wu, Christopher | | | 2182 | USA | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Gu, Christopher | | | 2225 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Ostrovskiy, Aleksandr | f | | 2351 | USA | 0.50 | 1 | 0.18 | 15 | 2.70 | |
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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