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Individual Calculations February 2013 |
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| Williams, Justus D Total change: -25.65 | |   |
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| 2012 Marshall Chess Club Championship | New york, New York | USA | 2012-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2000 | 2214 | 0.50 | 2 | -1.04 | 15 | -15.60 | |
|  Margiotta, Jason J | | | 1949 | USA | 0.50 | 1 | -0.32 | 15 | -4.80 | |  Zats, Yefrem | | | 2050 | USA | 0.00 | 1 | -0.72 | 15 | -10.80 | |
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) | | | | 45th Annual Liberty Bell Open - Open Section | Philadelphia, Pennsylvania | USA | 2013-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2200 | 2214 | 3.00 | 7 | -0.67 | 15 | -10.05 | |
| | Moorthy, Srinivas Ramanuja | | | 1906 | USA | 0.50 | 1 | -0.36 | 15 | -5.40 | | | Bryant, Todd C | | | 2088 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Gorman, Dov | f | | 2227 | USA | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Shvartsman, Andrew | c | | 2273 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Hill, Leroy | | | 2106 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Shabalov, Alexander | g | | 2578 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Melekhina, Alisa | f | wm | 2221 | USA | 0.00 | 1 | -0.49 | 15 | -7.35 | |
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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