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Individual Calculations September 2009 |
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| Getz, Alec Total change: 9.60 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2342 | 2229 | 2.50 | 7 | -0.08 | 15 | -1.20 | |
|  Kudrin, Sergey | g | | 2563 | USA | 0.50 | 1 | 0.38 | 15 | 5.70 | |  Ehlvest, Jaan | g | | 2579 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Haskel, Jeffrey | | | 2140 | USA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Goikhman, Valentin | | | 2209 | ISR | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Kleiman, Jake | f | | 2326 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Ravichandran, Siddhar | | | 2303 | IND | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Kaufman, Raymond | m | | 2276 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | |
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 |
| 2329 | 2229 | 2.50 | 7 | -0.17 | 15 | -2.55 | |
| | Becerra, Julio J | g | | 2579 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kaminski, Victor | | | 2244 | CAN | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Tuhrim, Richard J | | | 2022 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Molner, Mackenzie | | | 2384 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Friedel, Joshua E | g | | 2516 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Bartell, Thomas | f | | 2368 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Heinis, Vincent | | | 2193 | FRA | 1.00 | 1 | 0.45 | 15 | 6.75 | |
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 |
| 2221 | 2234 | 3.00 | 4 | 0.89 | 15 | 13.35 | |
| | Schwartz, Maxwell | | | 2116 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Higgins, Derrick | | | 2105 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Ivanov, Alexander | g | | 2527 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Chernin, Oliver | | | 2137 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | |
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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