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Individual Calculations January 2009 |
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| Sarkar, Justin Total change: 3.80 | |   |
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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 |
| 2366 | 2451 | 5.50 | 9 | 0.12 | 10 | 1.20 | |
|  Gaillard, Edward A | | | 2153 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | |  Pressman, Leif | | | 2101 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Bonin, Jay | m | | 2353 | USA | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Hess, Robert L | m | | 2493 | USA | 1.00 | 1 | 0.56 | 10 | 5.60 | | | Izoria, Zviad | g | | 2610 | GEO | 0.00 | 1 | -0.29 | 10 | -2.90 | | | Kacheishvili, Giorgi | g | | 2572 | GEO | 0.50 | 1 | 0.16 | 10 | 1.60 | | | Naranja, Renato C | m | | 2274 | PHI | 0.00 | 1 | -0.73 | 10 | -7.30 | | | Rohde, Michael A | g | | 2467 | USA | 0.50 | 1 | 0.02 | 10 | 0.20 | | | Margulis, Yevgeni | | | 2274 | 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) | | | | 2008 Pan American - Continental Championships | Boca Raton, Florida | USA | 2008-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2368 | 2451 | 5.50 | 9 | 0.12 | 10 | 1.20 | |
| | Vaja, Ashish | | | 2183 | USA | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Barros, Raul Junior | f | | 2101 | COL | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Becerra, Julio J | g | | 2602 | USA | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Pena, Alfredo | f | | 2309 | COL | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Stripunsky, Alexander | g | | 2553 | USA | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Escobar, Alder | m | | 2482 | COL | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Matsuura, Everaldo | m | | 2469 | BRA | 0.00 | 1 | -0.47 | 10 | -4.70 | | | Kleiman, Jake | f | | 2315 | USA | 0.50 | 1 | -0.18 | 10 | -1.80 | | | Melekhina, Alisa | | wf | 2299 | USA | 1.00 | 1 | 0.30 | 10 | 3.00 | |
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) | | | | 13th Annual Northern Virginia Open | Sterling, Virginia | USA | 2008-11-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2258 | 2451 | 2.00 | 2 | 0.51 | 10 | 5.10 | |
| | Passov, Alex | | | 2182 | USA | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Del Mundo, Anton P | f | | 2334 | PHI | 1.00 | 1 | 0.34 | 10 | 3.40 | |
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) | | | | What-A-Turkey Open | New York, NY | USA | 2008-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2319 | 2451 | 3.00 | 4 | 0.37 | 10 | 3.70 | |
| | Fitzko, Mitchell | | | 2133 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Tyehimba, Bem | | | 2216 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Kacheishvili, Giorgi | g | | 2572 | GEO | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Bonin, Jay | m | | 2353 | USA | 1.00 | 1 | 0.37 | 10 | 3.70 | |
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) | | | | 39th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2008-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2255 | 2451 | 3.00 | 5 | -0.74 | 10 | -7.40 | |
| | Privman, Boris | f | | 2185 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Heimann, Alexander C | | | 2248 | USA | 0.00 | 1 | -0.76 | 10 | -7.60 | | | Barnett, Alexander | | | 2231 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Melekhina, Alisa | | wm | 2299 | USA | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Zlotnikov, Mikhail | m | | 2314 | USA | 0.00 | 1 | -0.68 | 10 | -6.80 | |
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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