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Individual Calculations September 2009 |
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| Bonin, Jay Total change: -14.50 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2332 | 2369 | 4.50 | 8 | 0.08 | 10 | 0.80 | |
|  Yang, Darwin | f | | 2231 | USA | 0.50 | 1 | -0.19 | 10 | -1.90 | |  Figler, Ilye | f | | 2319 | USA | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Balasubramanian, Adit | | | 2212 | IND | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Zhao, Parker B | | | 2301 | USA | 1.00 | 1 | 0.41 | 10 | 4.10 | | | Kacheishvili, Giorgi | g | | 2613 | GEO | 0.00 | 1 | -0.20 | 10 | -2.00 | | | Naranja, Renato C | m | | 2295 | PHI | 1.00 | 1 | 0.40 | 10 | 4.00 | | | Korley, Kassa | | | 2120 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Kudrin, Sergey | g | | 2563 | USA | 0.00 | 1 | -0.25 | 10 | -2.50 | |
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 |
| 2320 | 2369 | 3.50 | 9 | -1.53 | 10 | -15.30 | |
| | Harmon-Vellotti, Luke | | | 2019 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Stripunsky, Alexander | g | | 2556 | USA | 0.50 | 1 | 0.24 | 10 | 2.40 | | | Perelshteyn, Eugen | g | | 2543 | USA | 0.00 | 1 | -0.27 | 10 | -2.70 | | | Coleman, Teddy | f | | 2289 | USA | 0.50 | 1 | -0.11 | 10 | -1.10 | | | Arnold, Marc T | m | | 2408 | USA | 0.00 | 1 | -0.45 | 10 | -4.50 | | | Francisco, Richard | | | 2213 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Gorman, Dov | f | | 2289 | USA | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Wasiluk, Kevin M | | | 2220 | USA | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Morshedi, Ali | f | | 2347 | USA | 0.00 | 1 | -0.53 | 10 | -5.30 | |
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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