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Individual Calculations February 2013 |
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| Margiotta, Jason J Total change: -2.10 | |   |
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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 |
| 2245 | 1949 | 0.50 | 4 | -0.15 | 15 | -2.25 | |
|  Williams, Justus D | | | 2214 | USA | 0.50 | 1 | 0.32 | 15 | 4.80 | |  Mena, Carlos E | f | | 2328 | CUB | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Hulse, Brian | f | | 2114 | USA | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Bonin, Jay Richard | m | | 2322 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | |
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) | | | | 45th Annual Liberty Bell Open - U2300 Section | Philadelphia, Pennsylvania | USA | 2013-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2073 | 1949 | 1.00 | 3 | 0.01 | 15 | 0.15 | |
| | Radutman, Felix | | | 2066 | USA | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Sakai, Hibicki | | | 2063 | JPN | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Lim, Michael | c | | 2090 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | |
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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