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Individual Calculations July 2009 |
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| Akobian, Varuzhan Total change: 13.70 | |   |
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| 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2445 | 2613 | 5.00 | 8 | -0.67 | 10 | -6.70 | |
|  Hilton, Jonathan L | | | 2263 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Zlotnikov, Mikhail | m | | 2324 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Charbonneau, Pascal | g | | 2505 | CAN | 1.00 | 1 | 0.35 | 10 | 3.50 | | | Hess, Robert L | m | | 2485 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | Robson, Ray | m | | 2465 | USA | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Shabalov, Alexander | g | | 2569 | USA | 0.50 | 1 | -0.06 | 10 | -0.60 | | | Lenderman, Alex | m | | 2434 | USA | 0.00 | 1 | -0.73 | 10 | -7.30 | | | Friedel, Joshua E | g | | 2516 | USA | 0.00 | 1 | -0.63 | 10 | -6.30 | |
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 US Championship | St. Louis, Missouri | USA | 2009-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2585 | 2613 | 6.00 | 9 | 1.17 | 10 | 11.70 | |
| | Zatonskih, Anna | m | wg | 2461 | USA | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Kamsky, Gata | g | | 2720 | USA | 0.00 | 1 | -0.35 | 10 | -3.50 | | | Robson, Ray | m | | 2465 | USA | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Becerra, Julio J | g | | 2609 | USA | 1.00 | 1 | 0.49 | 10 | 4.90 | | | Ehlvest, Jaan | g | | 2606 | USA | 1.00 | 1 | 0.49 | 10 | 4.90 | | | Shulman, Yury | g | | 2632 | USA | 0.50 | 1 | 0.03 | 10 | 0.30 | | | Nakamura, Hikaru | g | | 2701 | USA | 0.00 | 1 | -0.38 | 10 | -3.80 | | | Benjamin, Joel | g | | 2583 | USA | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Hess, Robert L | m | | 2485 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | |
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) | | | | 18th Annual Chicago Open - Open Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2462 | 2613 | 3.50 | 5 | 0.05 | 10 | 0.50 | |
| | Young, Angelo | m | | 2350 | PHI | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Molner, Mackenzie | | | 2384 | USA | 0.50 | 1 | -0.29 | 10 | -2.90 | | | Garcia, Gildardo J | g | | 2401 | COL | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Perelshteyn, Eugene | g | | 2543 | USA | 1.00 | 1 | 0.40 | 10 | 4.00 | | | Shulman, Yury | g | | 2632 | USA | 0.50 | 1 | 0.03 | 10 | 0.30 | |
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 |
| 2505 | 2613 | 4.00 | 5 | 0.82 | 10 | 8.20 | |
| | Tayar, Jonathan | f | | 2334 | CAN | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Bradford, Joseph M | m | | 2419 | USA | 0.50 | 1 | -0.25 | 10 | -2.50 | | | Kraai, Jesse | g | | 2488 | USA | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Van Wely, Loek | g | | 2622 | NED | 0.50 | 1 | 0.01 | 10 | 0.10 | | | Fressinet, Laurent | g | | 2664 | FRA | 1.00 | 1 | 0.57 | 10 | 5.70 | |
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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