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Individual Calculations September 2009 |
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| Kraai, Jesse Total change: 28.50 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2385 | 2488 | 6.00 | 9 | 0.33 | 10 | 3.30 | |
|  Figler, Ilye | f | | 2319 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | |  Sorkin, Igor | | | 2345 | ISR | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Liu, Elliott J | f | | 2353 | USA | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Arnold, Mark T | m | | 2408 | USA | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Korley, Kassa | | | 2138 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Milman, Lev | m | | 2462 | USA | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Sarkar, Justin | m | | 2410 | USA | 1.00 | 1 | 0.39 | 10 | 3.90 | | | Barbosa, Oliver A | m | | 2426 | PHI | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Ehlvest, Jaan | g | | 2606 | USA | 0.50 | 1 | 0.16 | 10 | 1.60 | |
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) | | | | 37th Annual World Open - Open Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2437 | 2488 | 5.50 | 9 | 0.46 | 10 | 4.60 | |
| | Beckman, Thomas J | | | 2138 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Bartell, Thomas | f | | 2368 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Bareev, Evgeny | g | | 2636 | RUS | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Hansen, Eric | f | | 2398 | CAN | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Yeager, Daniel A | f | | 2372 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Cheng, Bindi | f | | 2361 | CAN | 0.50 | 1 | -0.17 | 10 | -1.70 | | | Smith, Bryan G | m | | 2474 | USA | 1.00 | 1 | 0.48 | 10 | 4.80 | | | Kudrin, Sergey | g | | 2563 | USA | 0.50 | 1 | 0.10 | 10 | 1.00 | | | Potkin, Vladimir | g | | 2621 | RUS | 0.50 | 1 | 0.18 | 10 | 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 NJ Futurity | Branchburg, New Jersey | USA | 2009-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2456 | 2498 | 7.50 | 10 | 1.96 | 10 | 19.60 | |
| | Benjamin, Joel | g | | 2575 | USA | 0.50 | 1 | 0.11 | 10 | 1.10 | | | Benjamin, Joel | g | | 2575 | USA | 1.00 | 1 | 0.61 | 10 | 6.10 | | | Ippolito, Dean J | m | | 2455 | USA | 1.00 | 1 | 0.44 | 10 | 4.40 | | | Ippolito, Dean J | m | | 2455 | USA | 1.00 | 1 | 0.44 | 10 | 4.40 | | | Ju, Evan D | f | | 2316 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Ju, Evan D | f | | 2316 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Yudasin, Leonid G | g | | 2554 | ISR | 0.50 | 1 | 0.08 | 10 | 0.80 | | | Yudasin, Leonid G | g | | 2554 | ISR | 0.50 | 1 | 0.08 | 10 | 0.80 | | | Scekic, Milos | m | | 2382 | SRB | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Scekic, Milos | m | | 2382 | SRB | 0.50 | 1 | -0.16 | 10 | -1.60 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2236 | 2498 | 6.50 | 8 | 0.10 | 10 | 1.00 | |
| | Parmet, Daniel E | | | 2098 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Rosen, Eric S | | | 2141 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Dahl, Matthew D | | | 2098 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Haskel, Jeffrey | | | 2186 | USA | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Bercys, Salvijus | m | | 2434 | USA | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Langer, Michael | f | | 2263 | USA | 0.50 | 1 | -0.29 | 10 | -2.90 | | | Castaneda, Nelson | f | | 2282 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Sarkar, Justin | m | | 2388 | USA | 1.00 | 1 | 0.35 | 10 | 3.50 | | | * 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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