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Individual Calculations July 2009 |
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| Ivanov, Alexander Total change: 10.70 | |   |
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| Nashua Open | Nashua, New Hampshire | USA | 2009-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2366 | 2541 | 1.00 | 1 | 0.27 | 10 | 2.70 | |
|  Kelleher, William | f | | 2366 | USA | 1.00 | 1 | 0.27 | 10 | 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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2448 | 2516 | 5.00 | 8 | 0.35 | 10 | 3.50 | |
|  Weeramantry, Sunil | f | | 2231 | SRI | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Rodriguez, Eric | | | 2247 | USA | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Nakamura, Hikaru | g | | 2701 | USA | 0.50 | 1 | 0.24 | 10 | 2.40 | | | Ardaman, Miles F | f | | 2317 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Shabalov, Alexander | g | | 2569 | USA | 0.00 | 1 | -0.43 | 10 | -4.30 | | | Gorman, Dov | f | | 2289 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Ehlvest, Jaan | g | | 2606 | USA | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Van Wely, Loek | g | | 2622 | NED | 0.00 | 1 | -0.36 | 10 | -3.60 | |
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) | | | | 2009 National Open | Las Vegas, Nevada | USA | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2422 | 2516 | 3.50 | 5 | 0.45 | 10 | 4.50 | |
| | Chen, Howard | | | 2189 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Van Wely, Loek | g | | 2622 | NED | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Morshedi, Ali | f | | 2347 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Tayar, Jonathan | f | | 2334 | CAN | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Izoria, Zviad | g | | 2619 | GEO | 0.50 | 1 | 0.14 | 10 | 1.40 | |
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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