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Individual Calculations March 2011 |
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| Perepelitsky, Philip Total change: -19.95 | |   |
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| 20th Annual North American Open | Las Vegas, Nevada | USA | 2010-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2109 | 1.50 | 6 | -1.01 | 15 | -15.15 | |
|  Adamson, Robby | f | | 2334 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Langer, Michael | f | | 2261 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | |  Ni, Viktorija | | wm | 2180 | LAT | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Sells, Philip G | | | 1893 | USA | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Carreto, Giovanni | c | | 2214 | MEX | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Tyagi, Kushan | | | 2144 | USA | 0.50 | 1 | 0.05 | 15 | 0.75 | |
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) | | | | 2nd Annual Golden State Open | Concord, California | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2106 | 2109 | 2.00 | 5 | -0.53 | 15 | -7.95 | |
| | Brown, Michael W | | | 2079 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Harmon-Vellotti, Luke | | | 2143 | USA | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Krishnan, Varun | | | 2060 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Lee, Andy C | f | | 2271 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Liu, Daniel | | | 1976 | USA | 0.50 | 1 | -0.18 | 15 | -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) | | | | 37th Annual Peoples Tournament | Fremont, California | USA | 2011-02-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2264 | 2109 | 1.50 | 4 | 0.21 | 15 | 3.15 | |
| | Sevian, Samuel | | | 2108 | USA | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Chan, Julian M | | | 2111 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | De Guzman, Ricardo | m | | 2386 | PHI | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Stopa, Jacek | m | | 2451 | POL | 0.00 | 1 | -0.12 | 15 | -1.80 | |
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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