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Individual Calculations September 2009 |
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| Stopa, Jacek Total change: 32.20 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2370 | 2471 | 5.50 | 9 | -0.12 | 10 | -1.20 | |
|  Zhao, Parker B | | | 2301 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | |  Kleiman, Jake | f | | 2326 | USA | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Sarkar, Justin | m | | 2410 | USA | 0.50 | 1 | -0.08 | 10 | -0.80 | | | Yang, Darwin | f | | 2231 | USA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Kudrin, Sergey | g | | 2563 | USA | 1.00 | 1 | 0.63 | 10 | 6.30 | | | Arnold, Mark T | m | | 2408 | USA | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Hracek, Zbyneil | g | | 2604 | CZE | 0.00 | 1 | -0.32 | 10 | -3.20 | | | Sorkin, Igor | | | 2345 | ISR | 0.00 | 1 | -0.67 | 10 | -6.70 | | | Haskel, Jeffrey | | | 2140 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | |
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) | | | | 3rd Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2009-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2406 | 2471 | 7.00 | 9 | 1.76 | 10 | 17.60 | |
| | Rogers, Norman | f | | 2240 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Cheng, Bindi | f | | 2361 | CAN | 1.00 | 1 | 0.35 | 10 | 3.50 | | | Ippolito, Dean J | m | | 2443 | USA | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Shankland, Samuel | m | | 2446 | USA | 0.50 | 1 | -0.03 | 10 | -0.30 | | | Stocek, Jiri | g | | 2573 | CZE | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Jiang, Louie | | | 2266 | CAN | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Ravichandran, Siddharth | | | 2303 | IND | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Lenderman, Alex | m | | 2434 | USA | 0.00 | 1 | -0.55 | 10 | -5.50 | | | Gareev, Timur | g | | 2590 | UZB | 1.00 | 1 | 0.66 | 10 | 6.60 | |
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 |
| 2495 | 2471 | 5.00 | 9 | 0.86 | 10 | 8.60 | |
| | Greanias, Steven D | | | 2149 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Shulman, Yury | g | | 2632 | USA | 1.00 | 1 | 0.71 | 10 | 7.10 | | | Gareev, Timur | g | | 2590 | UZB | 0.50 | 1 | 0.16 | 10 | 1.60 | | | Lenderman, Alex | m | | 2434 | USA | 0.00 | 1 | -0.55 | 10 | -5.50 | | | Stripunsky, Alexander | g | | 2556 | USA | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Gulamali, Kazim | f | | 2338 | USA | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Benjamin, Joel | g | | 2583 | USA | 1.00 | 1 | 0.65 | 10 | 6.50 | | | Akobian, Varuzhan | g | | 2613 | USA | 0.00 | 1 | -0.31 | 10 | -3.10 | | | Kudrin, Sergey | g | | 2563 | USA | 0.00 | 1 | -0.37 | 10 | -3.70 | |
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) | | | | Houston Open | Houston, Texas | USA | 2009-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2296 | 2471 | 1.50 | 2 | 0.11 | 10 | 1.10 | |
| | Sawyer, Bradley J | | | 2121 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Zivanic, Marko | m | | 2471 | SRB | 0.50 | 1 | 0.00 | 10 | 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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2371 | 2471 | 2.50 | 3 | 0.61 | 10 | 6.10 | |
| | Ippolito, Dean J | m | | 2455 | USA | 0.50 | 1 | -0.02 | 10 | -0.20 | | | Langer, Michael | f | | 2263 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Rensch, Daniel M | f | | 2395 | USA | 1.00 | 1 | 0.40 | 10 | 4.00 | |
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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