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Individual Calculations July 2009 |
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| Robson, Ray Total change: 26.30 | |   |
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| SPICE Spring GM Tournament | Lubbock, Texas | USA | 2009-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2515 | 2455 | 5.00 | 10 | 0.80 | 10 | 8.00 | |
|  Kacheishvili, Giorgi | g | | 2590 | GEO | 0.00 | 1 | -0.32 | 10 | -3.20 | | | Antal, Gergely | m | | 2493 | HUN | 0.50 | 1 | 0.05 | 10 | 0.50 | |  Gareev, Timur | g | | 2581 | UZB | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Hess, Robert L | m | | 2483 | USA | 0.00 | 1 | -0.46 | 10 | -4.60 | | | Sharavdorj, Dashze | g | | 2429 | MGL | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Kacheishvili, Giorgi | g | | 2590 | GEO | 1.00 | 1 | 0.68 | 10 | 6.80 | | | Antal, Gergely | m | | 2493 | HUN | 1.00 | 1 | 0.55 | 10 | 5.50 | | | Gareev, Timur | g | | 2581 | UZB | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Hess, Robert L | m | | 2483 | USA | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Sharavdorj, Dashze | g | | 2429 | MGL | 1.00 | 1 | 0.46 | 10 | 4.60 | |
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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2411 | 2465 | 5.50 | 9 | 0.44 | 10 | 4.40 | |
| | Iwu, Okechukwu | | | 2198 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Zierk, Steven C | | | 2296 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Shabalov, Alexander | g | | 2569 | USA | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Becerra, Julio J | g | | 2609 | USA | 1.00 | 1 | 0.69 | 10 | 6.90 | | | Akobian, Varuzhan | g | | 2613 | USA | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Markzon, Gregory | f | | 2203 | USA | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Uesugi, Shinsaku | | | 2288 | JPN | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Kacheishvili, Giorgi | g | | 2613 | GEO | 0.50 | 1 | 0.20 | 10 | 2.00 | | | Mandizha, Farai | f | | 2313 | ZIM | 0.00 | 1 | -0.70 | 10 | -7.00 | |
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) | | | | 2009 US Championship | St. Louis, Missouri | USA | 2009-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2580 | 2465 | 4.50 | 9 | 1.39 | 10 | 13.90 | |
| | Becerra, Julio J | g | | 2609 | USA | 0.00 | 1 | -0.31 | 10 | -3.10 | | | Gulko, Boris | g | | 2561 | USA | 1.00 | 1 | 0.63 | 10 | 6.30 | | | Akobian, Varuzhan | g | | 2613 | USA | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Ibragimov, Ildar | g | | 2586 | USA | 1.00 | 1 | 0.66 | 10 | 6.60 | | | Kaidanov, Gregory | g | | 2595 | USA | 0.50 | 1 | 0.18 | 10 | 1.80 | | | Christiansen, Larry | g | | 2588 | USA | 1.00 | 1 | 0.67 | 10 | 6.70 | | | Brooks, Michael A | m | | 2463 | USA | 0.00 | 1 | -0.50 | 10 | -5.00 | | | Sevillano, Enrico | m | | 2520 | USA | 1.00 | 1 | 0.58 | 10 | 5.80 | | | Onischuk, Alexander | g | | 2684 | USA | 0.00 | 1 | -0.22 | 10 | -2.20 | |
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) | | |
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