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Individual Calculations September 2009 |
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| Barbosa, Oliver A Total change: 17.90 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2424 | 2426 | 6.50 | 9 | 1.99 | 10 | 19.90 | |
|  Barnett, Alexander | | | 2239 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | |  Yeager, Daniel A | f | | 2372 | USA | 1.00 | 1 | 0.42 | 10 | 4.20 | | | Braylovskiy, Grigory | | | 2358 | USA | 1.00 | 1 | 0.41 | 10 | 4.10 | | | Ehlvest, Jaan | g | | 2606 | USA | 1.00 | 1 | 0.74 | 10 | 7.40 | | | Arnold, Mark T | m | | 2408 | USA | 0.50 | 1 | -0.03 | 10 | -0.30 | | | Stripunsky, Alexander | g | | 2556 | USA | 0.50 | 1 | 0.18 | 10 | 1.80 | | | Shankland, Samuel | m | | 2446 | USA | 0.00 | 1 | -0.47 | 10 | -4.70 | | | Kraai, Jesse | g | | 2488 | USA | 0.50 | 1 | 0.09 | 10 | 0.90 | | | Sorkin, Igor | | | 2345 | ISR | 1.00 | 1 | 0.39 | 10 | 3.90 | |
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) | | | | 22nd North American FIDE Invitational | Skokie, Illinois | USA | 2009-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2274 | 2434 | 6.00 | 9 | -0.33 | 10 | -3.30 | |
| | Felecan, Florin | f | | 2399 | USA | 0.00 | 1 | -0.55 | 10 | -5.50 | | | Shankar, Gauri | f | | 2270 | IND | 0.00 | 1 | -0.72 | 10 | -7.20 | | | Szmetan, Ricardo L | f | | 2274 | BAR | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Loncarevic, Robert | | | 2062 | USA | 0.50 | 1 | -0.40 | 10 | -4.00 | | | Burgess, Jon L | | | 2241 | ENG | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Melekhina, Alisa | | wm | 2270 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Pasalic, Mehmed | m | | 2343 | GER | 1.00 | 1 | 0.38 | 10 | 3.80 | | | Arjun, Vishnuvardhan | m | | 2295 | IND | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Morales Garcia, S | f | | 2311 | MEX | 1.00 | 1 | 0.33 | 10 | 3.30 | |
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) | | | | 15th Annual Northeast Open | Stamford, Connecticut | USA | 2009-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2527 | 2434 | 0.50 | 1 | 0.13 | 10 | 1.30 | |
| | Ivanov, Alexander | g | | 2527 | USA | 0.50 | 1 | 0.13 | 10 | 1.30 | |
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) | | |
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