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Individual Calculations January 2010 |
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| Troff, Kayden W Total change: 12.25 | |   |
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| North America Youth Chess Championships Under 12 | Mazatlan, Sinaloa | MEX | 2009-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1834 | 2174 | 1.50 | 2 | -0.26 | 25 | -6.50 | |
|  Valenzuela Martinez, Herme | | | 1774 * | MEX | 1.00 | 1 | 0.08 | 25 | 2.00 | | | Karamsetty, Jeevan | | | 1894 | USA | 0.50 | 1 | -0.34 | 25 | -8.50 | | | * 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) | | | | 27th Annual Sands Regency - Western States Open | Reno, Nevada | USA | 2009-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2270 | 2174 | 3.00 | 6 | 0.77 | 25 | 19.25 | |
|  Mezentsev, Vladimir | m | | 2383 | RUS | 1.00 | 1 | 0.77 | 25 | 19.25 | | | Yang, Darwin | f | | 2282 | USA | 0.00 | 1 | -0.35 | 25 | -8.75 | | | Collyer, Curt D | | | 2294 | USA | 0.50 | 1 | 0.16 | 25 | 4.00 | | | Treger, Yefim | | | 2198 | USA | 0.50 | 1 | 0.03 | 25 | 0.75 | | | Yanayt, Eugene | f | | 2186 | USA | 0.00 | 1 | -0.48 | 25 | -12.00 | | | Readey, John L | f | | 2277 | USA | 1.00 | 1 | 0.64 | 25 | 16.00 | |
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) | | | | Utah Closed Championship | Salt Lake City, Utah | USA | 2009-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1964 | 2215 | 1.00 | 1 | 0.19 | 25 | 4.75 | |
| | Parsons, Michael A | | | 1964 | USA | 1.00 | 1 | 0.19 | 25 | 4.75 | |
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) | | | | 45th Annual American Open | Los Angeles, California | USA | 2009-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2129 | 2215 | 3.50 | 6 | -0.21 | 25 | -5.25 | |
| | Kavutskiy, Konstantin | | | 2121 | USA | 1.00 | 1 | 0.37 | 25 | 9.25 | | | Yanayt, Eugene | f | | 2165 | USA | 1.00 | 1 | 0.43 | 25 | 10.75 | | | Kudryavtsev, Vadim | | | 2171 | RUS | 0.00 | 1 | -0.56 | 25 | -14.00 | | | Baghdasaryan, Garnik | | | 2106 | ARM | 0.00 | 1 | -0.65 | 25 | -16.25 | | | Tanaka, Christian | | | 2150 | USA | 1.00 | 1 | 0.41 | 25 | 10.25 | | | Sevian, Samuel | | | 2060 | USA | 0.50 | 1 | -0.21 | 25 | -5.25 | |
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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