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Individual Calculations January 2009 |
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| Lenderman, Alex Total change: 0.90 | |   |
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| Edward Lasker Memorial and 92nd Annual Marshall Chess Club Championship | New York, New York | USA | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2335 | 2443 | 4.00 | 7 | -0.44 | 10 | -4.40 | |
|  Szuper, Paul | | | 2168 | USA | 1.00 | 1 | 0.17 | 10 | 1.70 | |  Kacheishvili, Giorgi | g | | 2572 | GEO | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Naranja, Renato C | m | | 2274 | PHI | 0.00 | 1 | -0.72 | 10 | -7.20 | | | Margulis, Yevgeni | | | 2274 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Getz, Alec | f | | 2222 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Izoria, Zviad | g | | 2610 | GEO | 0.00 | 1 | -0.28 | 10 | -2.80 | | | Hulse, Brian | | | 2224 | USA | 1.00 | 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) | | | | 14th Annual Northeast Open | Stamford, Connecticut | USA | 2008-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2335 | 2443 | 2.00 | 3 | 0.14 | 10 | 1.40 | |
| | Kudrin, Sergey | g | | 2553 | USA | 0.50 | 1 | 0.15 | 10 | 1.50 | | | Goletiani, Rusudan | | wg | 2359 | USA | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Panico Iii, Nick F | | | 2093 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | |
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) | | | | What-A-Turkey Open | New York, NY | USA | 2008-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2332 | 2443 | 2.00 | 2 | 0.72 | 10 | 7.20 | |
| | West, James R | | | 2196 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Rhode, Michael A | g | | 2467 | USA | 1.00 | 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) | | | | 39th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2008-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2307 | 2443 | 3.00 | 5 | -0.33 | 10 | -3.30 | |
| | Greanias, Steven D | | | 2126 | USA | 0.00 | 1 | -0.87 | 10 | -8.70 | | | Yang, Darwin | f | | 2182 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Zlotnikov, Mikhail | m | | 2314 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | Heimann, Mark A | | | 2327 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Shabalov, Alexander | g | | 2585 | USA | 0.50 | 1 | 0.19 | 10 | 1.90 | |
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) | | |
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