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Individual Calculations February 2014 |
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| Harmon-Vellotti, Carl Total change: 3.75 | |   |
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| 23rd Annual North American Open - U2300 Section | Las Vegas, Nevada | USA | 2013-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2063 | 1862 | 1.00 | 5 | -0.20 | 15 | -3.00 | |
|  Liu, Bovey | | | 1994 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Prieto, Ernesto | | | 2108 | COL | 0.00 | 1 | -0.19 | 15 | -2.85 | |  Nita, Marian Nick | | | 2109 | USA | 1.00 | 1 | 0.81 | 15 | 12.15 | | | Chen, Jackson | | | 2008 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Lee, Megan | | wm | 2098 | USA | 0.00 | 1 | -0.20 | 15 | -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) | | | | 5th Annual Golden State Open | Concord, California | USA | 2014-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2151 | 1862 | 1.00 | 3 | 0.45 | 15 | 6.75 | |
| | Brown, Michael William | | | 2262 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Movsisyan, Movses | f | | 2235 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Richter, Paul | | | 1957 | USA | 1.00 | 1 | 0.63 | 15 | 9.45 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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