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Individual Calculations January 2014 |
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| Brodsky, David Total change: 49.35 | |   |
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| 2013 MCC Amateur Championship | New York, New York | USA | 2013-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 1967 | 2.00 | 3 | 0.48 | 30 | 14.40 | |
|  Adelson, Serge | | | 1951 | USA | 1.00 | 1 | 0.48 | 30 | 14.40 | | | Zats, Yefrem | | | 2062 | USA | 0.50 | 1 | 0.13 | 30 | 3.90 | |  Jablon, Stephen E | | | 1870 | USA | 0.50 | 1 | -0.13 | 30 | -3.90 | |
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) | | | NOTE: K factor changed | | 97th Annual Marshall Chess Club Championship | New York, New York | USA | 2013-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2224 | 1967 | 3.50 | 6 | 2.33 | 15 | 34.95 | |
| | West, James R | | | 2088 | USA | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Bonin, Jay Richard | m | | 2317 | USA | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Allicock, Rawle A | f | | 2275 | ENG | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Hulse, Brian | f | | 2122 | USA | 1.00 | 1 | 0.71 | 15 | 10.65 | | | King, Alexander B | | | 2240 | USA | 0.50 | 1 | 0.33 | 15 | 4.95 | | | Sturt, Raven M | | | 2299 | USA | 0.50 | 1 | 0.38 | 15 | 5.70 | |
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) | | |
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